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The stainless Steel Foil Provided With High Quality and Best Price

The stainless steel foil of Yaoyi is made of hot-rolled stainless steel coils, which are produced by the world’s largest steel company Baosteel. In other words, this makes the quality guaranteed by the source and more reliable.

From production to delivery of the ss foil, Yaoyi has been following the ISO9001 international management system certification. We implement strict quality control for every batch of goods.

In addition, we promise that you can refund easily if there is a problem with raw materials.

304 stainless steel foil prices

Get BEST 304 Stainless Steel Products From China

Besides the 0.01mm~0.05mm stainless steel foil, you may need to purchase other 304 stainless steel products from China, please contact us if you have any questions.

304 Stainless Steel Foil
301 Stainless Steel Foil
316 Stainless Steel Foil
316L Stainless Steel Foil

Material Testing After You Place An 304 Stainless Steel Foil Order

Hardness Testing
Ingredient detection
Tensile Strength Test

Packaging Of 304 Stainless Steel Foil

YAOYI’s Packaging Specifications

FOCUSED ON THE 0.03 ~ 0.05 Mm 301 304 316 Stainless Steel Foil

+86 158 8814 9352

How Can Our Advantages Help Your Business

Inventory & MOQ

In order to meet your requirements and complete the order in time,Yaoyihas 700 tons of inventory, including more than 120 tons of various thicknesses of 316, 301 and 304 stainless steel foil. The inventory of 120 tons of ss foils also satisfies your low MOQ demand. It is convenient enough for you to promote your business.

Free Samples

According to your different requirements, we confidently provide with free SAMPLES to our clients. We believe it can dispel your worries about whether our product is suitable for your product or not.

ISO 9001

Thirdly, in the past 24 years, Yaoyi’s stainless steel foil production has been followed: ISO 9001, and controlled the production management of all stainless steel products. In other words, we have been pursuing to provide you with the highest quality ss foil.

Quality Inspection

Before the ss foil leaves the factory, we will carry out strict inspections on your ss foils, keep them in the archive, and then meet your requirements at any time to guarantee the after-sales service.

Best Raw Materials

Yaoyi’s stainless steel foil production uses hot-rolled coils from Baosteel (the world’s largest steel mill). We only use the best raw materials, so that we can provide you with the highest quality ss foil.

Customized Services

Sixthly, we also provide you with customized services. The only thing you need to do is telling us about the hardness, tensile strength, thickness, width, packaging, and other requirements. By the way, if you don’t know the hardness requirements of stainless steel, you can tell us your purpose. Our team of professional engineers will be able to find the most suitable solution, then we can provide samples to you for free.

How Can Our Advantages Help Your Business

From Raw Material to Processing

Firstly, Yaoyi is the only overseas raw material supplier for the world’s top 500 companies, and strict quality control can meet your requirements for stainless steel foil in all aspects.
Secondly, Yaoyi has perfect edge trimming and splitting technology. Even if you need 0.03mm ss foil to be cut into a width of only 30mm, we can meet your requirements.
Thirdly, we are a manufacture with a history of 24 years. We can control the raw materials and the production. At the same time, we can also meet your low MOQ. In order to save your cost, you need to reduce the middleman. Giving the order to us is your wisdom choise.

High Quality & Less Cost

Firstly, we have excellent production technology: a 20-high rolling mill production line. As a buyer, you should know that only a 20-high rolling mill production line can produce 0.03mm stainless steel foil for you.

Secondly, since 1996, yaoyi has been focusing on the production of ss foil. We have 24 years of production experience to provide you with the highest quality ss foil.

Thirdly, as a family business, Yaoyi has completed the handover. We believe that we will make progress with you, under the leadership of the new boss who graduated from Durham University.

Table of Contents

What is stainless steel?

Stainless steel refer to the steel whose total alloying elements exceed 2.5% and has the ability to resist atmospheric corrosion. It has excellent comprehensive properties, not only good corrosion resistance, but also high strength, high temperature and high pressure resistance, radiation resistance, low temperature resistance, weld ability, ease of processing, high surface finish and good surface stability, etc..

Excellent performance, plays an irreplaceable role in many fields. In some industries, such as printing industry and decoration industry, it is more widely used.

AISI 316L & AISI 316: Everything You Need To Know – Yaoyi stainless steel

What is stainless steel foil?

Different from the thickness of conventional ss foil, stainless steel with thickness ≤ 0.6mm and as thin as 0.02mm is generally called stainless steel foil. It belongs to the field of stainless steel austenite.
Its market characteristics are small and diverse, strict quality requirements, and technical content requirements. High, high value-added features.

Best AISI 321 stainless steel products are available- YAOYI Stainless Steel

Is it possible to slit stainless steel coils?

Yes, Of course.

Our coil cutting machine can cut metal into any width according to customer needs, from a 24-inch strip to a quarter-inch strip. We provide slitting processes for any number and all metals.

ASTM A167: Composition, Properties, and Equivalent Grades – YAOYI

What is the packaging standard of stainless steel foil?

Packaging standards for ss coils with a width of 2<width<10mm:
When the width is 2<width<10mm, a carton ring is used between the first stainless steel foil roll and the second ss foil roll to prevent the two ss foil rolls from squeezing and bumping. Each narrow material ss foil inner layer uses a plastic ring. The outside is packed in a carton.
Wrap the outer tray cover with a carton ring. The bottom ss foil roll is separated from the tray by a carton ring. Finally, put the whole into a wooden box and add foam particle filling. (See picture for details)
Packaging standards for ss coils with a width >10mm:
Wrap it with moisture-proof canvas paper, put it on a pallet, and put it in a special wooden box that is fumigation-free, and add foam particle filler. (See picture for details). 
Stainless steel has excellent comprehensive properties, not only good corrosion resistance, but also high strength, high temperature and high pressure resistance, radiation resistance, low temperature resistance, weld ability, ease of processing, high surface finish and good surface stability, etc. 
Excellent performance, plays an irreplaceable role in many fields. In some industries, such as printing industry and decoration industry, it is more widely used.

ASTM A240 Type 304: Properties, Pricing, and Applications – YAOYI

What are the main applications of stainless steel foil?

Grade 304 Stainless Steel Foil– YAOYI Stainless Steel

What are the production standards for steel foil?

At present, there is no international production standard for ss foil (<0.06MM). All countries have adopted the standard for thicker stainless steel coils or established their own production standards. Yaoyi strictly follows the American AISI production standard and provides customers with the best quality ss foil.

How To Find The Right Stainless Steel Supplier – YAOYI Stainless Steel


What should I pay attention to when purchasing stainless foil?

You need to inform Yaoyi, the quantity, width, thickness, hardness or tensile strength of ss foil you need, surface requirements, acceptable tolerance range.
If you don’t know the hardness or tensile strength of the product, please tell Yaoyi what the purpose of ss foil you want , you can send the existing ss foil to Yaoyi and we will test it for you free of charge. Then Yaoyi can provide you the most accurate quotation.

Is 301 Stainless Steel Magnetic?

What kinds of stainless steel foil can Yaoyi make?

Classification of steel grades:

SUS301 (1Cr17Ni7), SUS304 (0Cr18Ni9), SUS304L (00Cr18Ni10), SUS316 (0Cr17Ni12Mo2), SUS316L (00Cr17Ni14Mo2), SUS310S (1Cr25Ni20Si2), SUS321 (1Cr18Ni9Ti).

J2 Stainless Steel: A Complete & Thorough Guide

301 Stainless steel Foil Chemical Composition:










Type 301

0.15 max

2.0 max

0.03 max

0.045 max

1.0 max

16 – 18

6.0 -8.0


    304 and 
304L Stainless steel Foil Chemical Composition:









Type 304





1.0 x

18 – 20


Type 304L





1.0 x

18 – 20


    316 and 316L Stainless steel Foil Chemical Composition:









Type 316





1.0 x

16 – 18







1.0 x

16 – 18


    310 and 310S Stainless steel Foil Chemical Composition:









Type 310

0.25 max

2.0 max

0.03 max

0.045 max

1.5 max

24.0 – 26.0


Type 310S

0.08 max

2.0 max

0.03 max

0.045 max

1.5 max

24.0 – 26.0


    321 Stainless steel Foil Chemical Composition:









Type 321

0.0 max

2.0 max

0.03 max

0.04 max


17 – 19



In terms of thickness, Yaoyi can produce ss foil with a thickness of 0.02 ~ 0.07mm.

Classification from the width: Yaoyi can produce a width of 2~500mm.


J3 Stainless Steel : A Complete Guide For Importers

What kind of surface does stainless steel foil have?

The surface processing of ss foil is roughly divided into three types:

2B, BA, No. 8, and most of them are BA, 2B.

J4 stainless steel Food Grade : the best you can find & purchase.

What is the thickness tolerance range of stainless steel foil?

The tolerance range of each thickness will be different. For example, the tolerance range of a stainless steel foil with a thickness of 0.06mm is 0.02mm; the tolerance range of a ss foil with a thickness of 0.05mm is 0.03mm.

The smaller the tolerance range, the more difficult the production. The higher the production cost, the higher the price of ss foil.


Stainless Steel AISI 316Ti (S31635) By The AISI System

What is the width tolerance range of stainless steel foil?

For normal production and processing, the width tolerance of stainless steel foil with a width of more than 100mm is 5mm, and the width tolerance of ss foil with a width of less than 50mm is: 2mm. Yaoyi can also provide edge scraping services.


Stainless Steel Belt: Characteristics, Advantages, and Applications

How to use stainless steel foil?

Stainless steel foil has excellent anti-rust performance and excellent mechanical properties, high fatigue resistance, good elasticity and toughness. In other words, it can be used for heat treatment, moisture barrier, chemical tanks, heat exchangers, fins, chemical equipment, metal stampings and gaskets. 100% recyclable.


Stainless Steel Cable Ties – YAOYI Stainless Steel

How to test stainless steel foil?

On the one hand, you can send the stainless steel foil you are currently using to Yaoyi.

Yaoyi has a professional laboratory, and the well-trained and experienced engineers can analyze your products in both physical and chemical aspects.

On the other hand, Yaoyi can provide you with samples for free according to your requirements, and you can use your machine to check whether it meets your requirements.


Stainless Steel Chemical Composition – YAOYI Stainless Steel

Which payment method does Yaoyi use?

30% deposit and 70% balance before shipment. Payment in advance by T/T or Western Union.
payment method

Stainless steel coil with high-quality and low-MOQ is provided in China.

How long does it take for the usual Yaoyi to produce stainless steel foil?

Under normal circumstances, Yaoyi can produce and deliver the stainless steel foil you need within 15 days.

stainless steel foil manufacturers

How does Yaoyi guarantee quality?

Yaoyi is a factory specializing in the production of stainless steel foil for more than 26 years.
Yaoyi has been following the ISO 9001 international practice system certification, and each batch of product shipments will be sampled and tested and retained for archiving, and the product inspection report of ss foil will be released.
Ensure the high quality of the customer’s stainless steel foil.

The stainless steel foil provided in China with high quality and best price.

Which major clients has Yaoyi served?

Yaoyi is the world’s only overseas raw material supplier for leading companies in the automotive clamp industry.
Yaoyi is a raw material supplier for PDVSA’s subsea oil pipeline.
Yaoyi is a raw material supplier of stainless steel foil for leading dental companies.
In the past 26 years, Yaoyi has served more than 300 enterprises of various types, and has always been known for its quality and service.

Stainless Steel Rolls: Everything You Should Know – YAOYI Stainless Steel

Where is Yaoyi located?

YAOYI is located on 50 acres of land in Ningbo, Zhejiang. The location is close to the highway leading to Beilun Port, the main port in eastern China. 

Beilun Port is located on the east coast of China, on the west coast of the Pacific Ocean, and in the middle of the Chinese coastline. Beilun Port has unique natural conditions, with Zhoushan Islands as a natural barrier. The waves are calm, and about 98% of the days each year have only waves of level 1 to 2. The water depth of Beilun Port is 20 meters, and the main channel is 50 meters deep. It does not freeze or silt all the year round. If there is a large storm above level 12 on the sea, it can accommodate 300 ships of more than 100,000 tons to enter the port for shelter. It is one of China’s excellent deep-water ports. It is also a rare haven in the world, capable of handling 100,000-ton, 200,000-ton, and 300-ton cargo ships and tankers.


A Complete Guide to 304 Stainless Steel Strapping

Where to buy stainless steel foil?

As an individual, when you need to purchase stainless steel foil less than 1 kg, you only need to go to online platforms such as Amazon to purchase directly.
As a factory, if the raw material you need in ss foil, you need to understand the ss foil you need to purchase: hardness (or tensile strength), width, thickness, surface requirements, etc. Or you can tell me your application, yaoyi has professional engineers to find suitable ss foil for you.
If you have purchased ss foil before, but you don’t know its parameters, you can send me samples of stainless steel foil. We have professional testing equipment to test the composition and hardness of ss foil for you.


A Manufacturer of Stainless Steel Strips

How to produce stainless steel foil?

The size range of precision stainless steel strip is different from that of conventional stainless steel foil. It refers to cold-rolled ss foil with special ultra-thin specifications. The thickness is generally between 0.05-0.5mm, and it is called ss foil below 0.05mm. Such products require high quality and difficult process control. It is extremely difficult to produce the ss foil. For example, 4 rolling passes and 24 hydraulic pressure are required to produce a ss foil with a thickness of 0.02mm.

Usually, one stroke requires six times of 180 tons of hydraulic pressure, and each time you have to check whether the steel surface has color difference and whether it is flat.

In the production process, the ss foil is added with CU and TI, thereby reducing the solubility of sulfides mainly composed of Mn and S in acidic liquids, reducing cavitation and cracking, making Yaoyi stainless steel foil with good protection Corrosive.


Always Provides You with the BEST Austenitic Stainless Steel Products

How to weld stainless steel foil?

Only brazing can be used. That is, vacuum brazing or MIG brazing can be welded. Vacuum brazing should use brazing paste and brazing material, and put them into the vacuum furnace for welding after installation;MIG brazing is welding with low melting point brazing wire, but for stainless steel foil, there will be greater welding distortion.
For Example:Material: WEWELDING 88C cooperates with WEWELDING 88C-F low-temperature welding.
Tool: Choose WE53 multi-hole spray gun
The argon arc welding is beautiful. However, the speed is slow. In recent years, the popular cold welding of thin plates is more beautiful, does not need to be polished, and is more difficult to speculate. The speed is slower and slower, so it cannot replace argon arc welding (welders must be fast if the quality is possible). Stainless steel also belongs to steel, of course, many methods can be used. Handle welding in arc welding, ordinary gas shielded, pulsed arc welding, laser welding, friction welding, resistance welding, submerged arc welding, etc.

ASTM A240 Material: Applications and Classifications

Is it healthy to use stainless steel for cooking or tin foil?

The main function of tin foil is better heat transfer, wrapping food, allowing food to be heated more when grilled, and easier to cook. It is not that tin foil is healthier than stainless steel.

Mineral oil, the processing aid used on the surface of the tin foil during the manufacturing process, will volatilize when heated. Is it harmful? 

Take a look at the introduction: The base oil extracted from petroleum by physical distillation is called mineral oil. The processing flow is in the crude oil refining process, after fractionating useful light substances, the remaining bottom oil is then refined (Called the old three sets (solvent refining, ketone benzene dewaxing, clay supplement refining)). The main two steps are solvent refining to remove non-ideal components such as aromatics and solvent dewaxing to ensure the low temperature fluidity of the base oil.


The production process is based on physical processes, without changing the structure of hydrocarbons. The base oil produced depends on the content and properties of the ideal components in the raw materials; mineral oil cannot be cleaned of impurities during the refining process, so the flow point It is higher and not suitable for cold zone operations; so, mineral oil base oils are subject to certain restrictions in nature. Main purpose: used in the manufacture of washing powder, synthetic detergent, synthetic petroleum protein, pesticide emulsifier, etc.

AISI 301 Chemical Composition: Characteristics, Compounds,and Grades

Yaoyi Stainless Steel

To ensure the delivery of your products, Yaoyi stainless steel foil manufacturers use a specially customized production management ERP system. Whether you need ss foil for trading companies or traditional factories, Yaoyi can provide solutions. With the MOQ, you can get a sufficient quantity of ss foil for sale or production. Yaoyi provides you with the suitable price and high quality ss foil.

After years of hard work, Yaoyi is well-known for its excellent ss foil production. Our well-trained and experienced engineers ensure the production of high-quality ss foil. Combined with our quality management system, you can ensure that these ss foils can perfectly meet your requirements. In Yaoyi, you can find the best ss foil for your business.

Yaoyi is a family-owned company that has completed the handover of leaders. The new owner is a master’s degree from Durham University in the United Kingdom. Her goal is to develop and inherit Yaoyi as a century-old steel company and produce the best quality ss foil for customers .

In the twenty-six years engaged in the production of stainless steel foil, Yaoyi has gained the trust of different customers. Our fast delivery time and excellent service make us one of the most reliable ss foil manufacturers in China. In Yaoyi, we can help you make your business grow rapidly in the market or any platform where you want to show your brand



What is stainless steel foil and what are its primary uses?

Stainless steel foil is a versatile product, manufactured through an intricate process of cold rolling. This type of foil is predominantly used in various industrial, commercial, and residential applications. The applications vary from use in the electronics and automotive industry to applications in culinary endeavors due to its corrosion resistance, strength, and flexible nature.

A prominent use of stainless steel foil is in the production of automotive parts. In this industry, the foil is commonly employed in exhaust systems due to its ability to withstand high temperatures and corrosive environments. Its lightweight nature and durability make it an excellent choice for this type of application.

Furthermore, stainless steel foil finds its way into electronics. Due to its excellent thermal and electrical conductivity, it is used in the manufacture of electrical components, connectors, and batteries. Its thinness allows for high precision manufacturing, and its strength ensures durability.

In the culinary world, stainless steel foil is used in the production of various kitchen utensils and appliances. Its rust-resistant nature makes it a preferred material for applications that come into contact with food. Additionally, its easy maintenance and sleek appearance make it an ideal choice for professional and home kitchens.

The construction industry is another sector where stainless steel foil is employed, especially in architectural works. Its shiny, sleek surface provides an attractive finish to structures while offering robust resistance to weather conditions.

The healthcare industry values stainless steel foil for its non-toxic nature. It is commonly used in surgical instruments and medical devices, as it can be easily sterilized and doesn’t react with biological materials.

In short, stainless steel foil, with its broad range of characteristics, offers extensive applications across multiple industries.

What is the difference between stainless steel foil and carbon steel foil?

Both stainless steel foil and carbon steel foil share some characteristics, but they also have distinct differences that make them suitable for diverse applications. These differences lie in their composition, characteristics, and uses.

Stainless steel foil is known for its corrosion resistance, a feature that carbon steel foil does not possess. This resistance is due to the presence of a minimum of 10.5% chromium in stainless steel, forming a protective layer of chromium oxide on the surface. This layer prevents oxidation, thus making stainless steel foil resistant to rust.

Carbon steel foil, on the other hand, is primarily iron with a small percentage of carbon. The higher the carbon content, the harder and stronger the steel becomes. However, it lacks the chromium content found in stainless steel, making it more susceptible to corrosion.

Stainless steel foil is often used in environments where corrosion resistance is crucial, such as in the manufacturing of kitchen appliances, medical devices, and automotive parts. On the other hand, carbon steel foil finds application where high strength is required, like in the production of blades, springs, and high-strength wires.

In terms of cost, stainless steel foil tends to be more expensive than carbon steel foil due to the additional alloying elements that grant it superior corrosion resistance and other desirable properties.

For further understanding of these materials, you can refer to this guide that goes into the nuances of hot-rolled and cold-rolled steel products, which include stainless steel and carbon steel foils.

Is stainless steel foil magnetic?

Whether stainless steel foil is magnetic or not depends on the type of stainless steel used in its manufacturing. Stainless steel is divided into various types based on its microstructure – austenitic, ferritic, martensitic, and duplex.

Austenitic stainless steel, which includes types 304 and 316, is non-magnetic. This is because of the high nickel and chromium content that changes the crystal structure to a face-centered cubic form, which is inherently non-magnetic.

On the other hand, ferritic and martensitic stainless steels, like types 409, 430, and 410, are magnetic. These types contain a higher proportion of iron and have a body-centered cubic crystal structure.

Thus, whether a stainless steel foil is magnetic or not depends on the type of stainless steel from which it is made. When selecting a stainless steel foil for your application, consider whether a magnetic or non-magnetic material is required. You can find detailed information about various stainless steel types on our website, such as AISI 410, SUS304, and AISI 430.

How is stainless steel foil manufactured?

The manufacturing of stainless steel foil involves several critical steps. The process starts with the selection of the right type of stainless steel alloy depending on the desired properties and applications of the finished product.

The initial step in producing stainless steel foil is the melting of raw materials. The base elements, including iron, carbon, nickel, and chromium, among others, are melted in an electric furnace at extremely high temperatures.

Once the raw materials have been melted and combined, the mixture is cast into a semi-finished form, often a slab. This slab is then subjected to a process known as hot rolling, where it is heated and passed through large rollers. This process reduces the thickness of the slab and prepares it for the next step, cold rolling.

Cold rolling is a key step in the manufacturing process of stainless steel foil. This is where the metal is further reduced to the thinness of foil. The cold rolling process involves passing the hot rolled slab through more rollers, this time at room temperature. This procedure not only decreases the thickness of the metal but also improves its surface finish and hardens the material.

After cold rolling, the stainless steel is often annealed. This process involves heating the material to a specific temperature, then cooling it slowly. Annealing softens the metal, improves its ductility, and relieves internal stresses.

The final step in the manufacturing process is slitting, where the large rolls of stainless steel are cut into narrower widths, depending on customer requirements. The end product is a roll of stainless steel foil, ready for use in a myriad of applications.

For more detailed information on the cold and hot rolling process, you can check out this comprehensive guide.

How does stainless steel foil compare to other types of foil like aluminum and titanium foil?

Stainless steel foil, aluminum foil, and titanium foil each have unique properties, which makes them suitable for specific applications.

Stainless steel foil stands out due to its robustness and corrosion resistance. It is an ideal choice for applications that require durability and exposure to corrosive environments. Its heat resistance makes it suitable for high-temperature applications like in automotive exhaust systems and industrial processes. However, it is denser and heavier compared to aluminum and titanium foil.

Aluminum foil is much lighter than stainless steel foil and has excellent thermal and electrical conductivity. It is highly flexible and can be easily formed, making it a popular choice for packaging and insulation applications. However, it is not as robust as stainless steel foil and may not be suitable for high-strength applications.

Titanium foil, on the other hand, offers an excellent strength-to-weight ratio. It is lightweight yet very strong and highly resistant to corrosion. Its biocompatibility makes it a common choice in medical applications. It’s important to note, however, that titanium foil is typically more expensive due to the high cost of titanium and its complex manufacturing process.

Each type of foil has its advantages and disadvantages. The choice of foil depends on the specific requirements of the application, including strength, weight, cost, and corrosion resistance.

For further details on the properties and applications of various types of stainless steel, you may visit the product guides available on our website, including AISI 410, AISI 430, and AISI 4140.

How to install stainless steel foil?

Installing stainless steel foil can be a straightforward process, but it requires care and precision. Here’s a basic step-by-step guide:

  1. First, measure the surface where the foil will be installed. Ensure the measurements are accurate as this will determine the size of the foil you’ll cut.
  2. Using the measurements, cut the stainless steel foil to size. Use a straight edge and a utility knife for a clean, straight cut.
  3. Clean the surface where the foil will be installed. Ensure it’s free from dust and debris as these can interfere with adhesion.
  4. If using an adhesive, apply it evenly on the surface. Ensure the entire surface is covered for a firm bond.
  5. Carefully place the stainless steel foil onto the surface. Begin at one end and slowly lay the foil, smoothing it out as you go to prevent bubbles.
  6. Once the foil is in place, use a roller or similar tool to press down on the foil, ensuring firm adhesion and the elimination of any bubbles.
  7. For edges and corners, use a putty knife or similar tool to press the foil into place.

The installation method may vary depending on the specific application and the type of stainless steel foil used.

Can stainless steel foil be magnetized?

Yes, some types of stainless steel foil can be magnetized. Stainless steel is a broad category encompassing a wide range of alloys. The magnetic properties of stainless steel depend on the particular alloy in use.

Ferritic and martensitic stainless steels, for example, are magnetic. These types of stainless steel have a body-centered cubic (BCC) crystal structure, which enables them to be attracted to a magnet. Common ferritic stainless steels include AISI 430 and AISI 410, and martensitic stainless steels include AISI 4140 and AISI 420.

On the other hand, austenitic stainless steels, which have a face-centered cubic (FCC) crystal structure, are generally not magnetic. These include popular types like AISI 304 and AISI 316. However, cold working operations like rolling can introduce a degree of magnetism in these steels.

Therefore, whether a stainless steel foil is magnetic or not will depend on the specific type of stainless steel from which the foil is made. For more information on the different types of stainless steel and their properties, you can refer to our complete guides to AISI 410, AISI 4140, and AISI 430.

What are the typical uses of stainless steel foil?

Stainless steel foil finds applications in a wide range of sectors due to its unique properties. Here are some typical uses:

  • Electronics and Semiconductors: Stainless steel foil is used in various electronic devices and semiconductor applications due to its excellent electrical conductivity and heat resistance. It’s often used as a shielding material for electronic components to reduce electromagnetic interference.

  • Automotive and Aerospace: In the automotive industry, stainless steel foil is used in parts like gaskets, heat shields, and exhaust systems due to its heat resistance and strength. In aerospace, it’s used in parts exposed to high temperatures and corrosive environments.

  • Chemical Processing: Stainless steel foil is widely used in chemical processing plants due to its corrosion resistance. It can withstand exposure to a wide range of chemicals, making it an excellent choice for lining chemical reaction vessels and piping.

  • Energy Industry: In the energy sector, stainless steel foil is used in applications like fuel cells and solar panels. It can handle high-temperature conditions and corrosive environments typically encountered in these applications.

  • Medical Industry: The medical industry uses stainless steel foil in applications like medical devices and implants due to its biocompatibility and corrosion resistance.

To learn more about the various types of stainless steel and their specific uses, please visit our detailed guides on AISI 410 and AISI 430.

How to clean and maintain stainless steel foil?

Maintaining and cleaning stainless steel foil can be done in a few easy steps. Here’s a simple guide:

  1. Regular Cleaning: For regular cleaning, use a soft cloth and warm water. Wipe the surface gently to avoid scratching it.

  2. Removing Stains: If the foil has stains or spots, use a mild detergent or a stainless steel cleaner. Apply the cleaner with a soft cloth and rub along the grain of the foil, not against it, to avoid scratching.

  3. Rinsing: After cleaning, rinse the foil thoroughly with clean water. Leaving detergent or cleaner residue can damage the surface over time.

  4. Drying: Once rinsed, dry the foil thoroughly. Allowing water to dry on the surface can leave spots.

  5. Polishing: For extra shine, you can also polish the foil using a stainless steel polish. Apply the polish with a soft cloth and buff along the grain.

Remember, harsh cleaners or scrubbing pads can scratch the surface of the stainless steel foil. Always use soft cloths and gentle cleaners. Regular cleaning and maintenance can keep your stainless steel foil looking new and prolong its life.

What is the difference between stainless steel foil and titanium foil?

While both stainless steel foil and titanium foil are used in various industries due to their respective properties, they have distinct differences:

  • Strength and Weight: Titanium foil is stronger and lighter than stainless steel foil. This makes it ideal for aerospace and other applications where weight is a crucial factor.

  • Corrosion Resistance: Both materials have excellent corrosion resistance, but titanium foil is particularly notable for its resistance to saltwater, making it perfect for marine applications.

  • Heat Resistance: Stainless steel foil generally has better heat resistance than titanium foil, making it preferable for applications that require exposure to high temperatures.

  • Cost: Titanium is a rarer material than iron (from which steel is made), making titanium foil generally more expensive than stainless steel foil.

  • Magnetic Properties: Stainless steel foil can be magnetic, as discussed earlier, while titanium foil is not.

How to choose the right type of stainless steel foil?

Choosing the right type of stainless steel foil depends on your specific application and needs. Here are some factors to consider:

  • Corrosion Resistance: If your application involves exposure to corrosive substances, consider a type of stainless steel that is highly resistant to corrosion. For instance, austenitic stainless steels like AISI 304 are known for their excellent corrosion resistance.

  • Magnetic Properties: If you need a magnetic stainless steel foil, consider ferritic or martensitic stainless steels, such as AISI 430 or AISI 410. On the other hand, if you need non-magnetic foil, austenitic stainless steels would be a better choice.

  • Heat Resistance: If your application involves high temperatures, consider a stainless steel with high heat resistance. For example, the AISI 410 stainless steel foil is known for its heat resistance.

  • Strength: If your application requires high strength, consider a type of stainless steel known for its strength. Martensitic stainless steels like AISI 4140 are known for their high strength and hardness.

  • Cost: Finally, the cost can be a significant factor. Different types of stainless steel come with different price tags.

To understand the properties of various types of stainless steel better, you can refer to our guides on AISI 410, AISI 430, and AISI 4140.

To summarize, stainless steel foil is a versatile material with a wide range of applications in various industries, thanks to its unique properties like corrosion resistance, heat resistance, and magnetic properties. However, it’s crucial to choose the right type of stainless steel foil based on the specific requirements of your application.

What is the Stainless Steel Foil price?

When it comes to purchasing stainless steel foil, understanding the cost breakdown is essential. In this article, we will explore the prices of different types and thicknesses of stainless steel foil, providing you with valuable insights to make informed decisions.

Types of Stainless Steel Foil

Stainless steel foil comes in various types, each with its unique properties and applications. Let’s take a closer look at some commonly used types:

Types of Stainless Steel Foil

1. 304 Stainless Steel Foil

  • Excellent corrosion resistance
  • Versatile applications in food processing, automotive, and construction industries

2. 316 Stainless Steel Foil

  • Superior corrosion resistance, ideal for marine environments and chemical processing industries
  • Resistant to pitting and crevice corrosion

3. 321 Stainless Steel Foil

  • High-temperature resistance and excellent weldability
  • Widely used in aerospace, power generation, and exhaust systems

4. 347 Stainless Steel Foil

  • Improved high-temperature strength and resistance to intergranular corrosion
  • Suitable for applications requiring high-temperature stability

Factors Affecting Stainless Steel Foil Prices

Factors Affecting Stainless Steel Foil Prices

Several factors influence the prices of stainless steel foil. Understanding these factors will help you assess the cost breakdown. Here are the key factors to consider:

1. Type of Stainless Steel

Different types of stainless steel have varying compositions and properties, which can affect the production cost and, subsequently, the price of the foil.

2. Thickness of the Foil

Thicker foils require more raw material and additional processing, leading to higher production costs and, consequently, higher prices.

3. Supplier and Location

Transportation costs, import/export duties, and local market conditions can vary from one supplier to another and from one location to another, impacting the overall cost.

4. Market Demand and Availability

The demand for stainless steel foil and its availability in the market can also impact the prices. If the demand is high and the supply is limited, the prices may increase due to market dynamics.

ss foil Price Breakdown

Let’s take a closer look at the prices of different types and thicknesses of stainless steel foil:

Type Thickness Price
304 Stainless Steel Foil 0.006″ $987.17/25lb coil
304 Stainless Steel Foil 0.002″ $437.71/24×50′ roll
304 Stainless Steel Foil 0.002″ $50/lb for 36×200′ roll
316 Stainless Steel Foil 0.005″ Check website
316 Stainless Steel Foil 0.01″ $20-$35/kg for 30mm wide roll
321 Stainless Steel Foil 0.002″ $50/lb for 20×10′ roll
321 Stainless Steel Foil 0.002″ $50/lb for 20×50′ roll
347 Stainless Steel Foil Check website

Please note that the prices mentioned above are subject to change. It is recommended to check with the supplier or visit their website for the most up-to-date pricing information.


Understanding the cost breakdown of stainless steel foil is crucial for making informed purchasing decisions. Consider the type of stainless steel, thickness of the foil, supplier, and market dynamics when assessing the prices.

By having a clear understanding of the prices of different types and thicknesses of stainless steel foil, you can make informed decisions and ensure that you are getting the best value for your investment.

What are the main uses and applications of stainless steel foil?

  1. Industrial Manufacturing: Stainless steel foil is widely used in various manufacturing processes due to its strength and resistance.

  2. Electronics: As a conductor, stainless steel foil plays a vital role in electronic components.

  3. Automotive Industry: For lightweight strength, it’s utilized in car parts.

  4. Food Packaging: The non-reactive properties make it suitable for food wrapping.

  5. Construction: It’s used for decorative purposes and structural support in buildings.

  6. Medical Instruments: Stainless steel foil is vital for medical instruments because of its hygienic properties.

  7. Energy Sector: In solar panels and other energy systems, it’s used to achieve efficient energy transfer.

  8. Aerospace: With high tensile strength, it’s applied in aerospace components.

  9. Jewelry Making: It gives a sleek and modern appearance to various jewelry pieces.

  10. Comparison with Alternatives: In comparison to carbon steel foil, stainless steel is more corrosion-resistant, making it suitable for different applications.

Note: Quality control, such as the thickness tolerance controlled within 0.005mm at Yaoyi Stainless, ensures optimal usability across industries.

How is the quality of stainless steel foil maintained and tested?

1. Quality Control Standards

Following ISO 9001, companies like Yaoyi maintain quality by adhering to internal control standards. This ensures the production of top-notch stainless steel foil.

2. Advanced Laboratory Testing

Modern equipment tests hardness, elongation, and chemical composition. For example, Yaoyi uses spectrometers imported from Germany to analyze stainless steel accurately.

3. Thickness Tolerance Control

With CNC systems, the thickness tolerance of the ss foil is controlled within 0.005mm. This precision ensures consistency across all products.

4. Chemical Composition Analysis

Testing for exact chemical composition assures that the stainless steel foil meets the required standards. This is a vital step in maintaining quality.

5. Source Quality Guarantee

Using hot-rolled coils from renowned suppliers like Baosteel guarantees quality from the source, making the product more reliable.

6. Free Testing Services

Companies may offer free testing to confirm the quality parameters, enhancing the customer’s trust in the product.

7. Comparison with Other Materials

Compared to mild steel foil or carbon steel foil, stainless steel offers better quality control due to its inherent properties.

8. International Certifications

Adhering to international certifications like ISO9001 ensures global acceptance of the product’s quality.

9. Customer Feedback and Continuous Improvement

Regular customer feedback and continuous improvement play vital roles in maintaining the product’s quality standards.

10. Environmental and Safety Considerations

Ensuring the stainless steel foil is produced under environmentally friendly and safe conditions also contributes to overall quality control.

What are the different types of stainless steel foil available in the market?

1. 200 Series

The 200 series of stainless steel foil is known for its corrosion resistance and lower nickel content, making it economical.

2. 300 Series

The 300 series offers excellent formability and is used widely in various applications.

3. Duplex Series

Combining the best of austenitic and ferritic, this type offers higher strength.

4. Ferritic Stainless Steel

Contains chromium but no nickel, offering good corrosion resistance at a lower cost.

5. Austenitic Stainless Steel

Known for its non-magnetic properties, it’s used in many industrial applications.

6. Martensitic Stainless Steel

This type offers higher hardness and is used in cutting tools.

7. Comparative Analysis with Carbon Steel Foil

Unlike carbon steel foil, stainless varieties offer more options in terms of mechanical properties and applications.

8. Tailored Solutions

Some suppliers provide tailored solutions, matching specific needs of industries.

9. Recyclability

Different types offer various recycling potentials, contributing to sustainability.

10. Market Availability

Availability varies by region and supplier, and understanding the differences helps in making an informed purchase decision.

How does the thickness tolerance of stainless steel foil affect its usability?

1. Precision in Manufacturing

Controlling thickness tolerance within 0.005mm, as in Yaoyi’s process, ensures a precise and consistent product.

2. Improved Performance

Accurate thickness enhances overall performance in various applications like electronics, construction, and automotive.

3. Cost-Efficiency

Optimized thickness tolerance reduces waste, thereby saving material costs compared to traditional steel foil paper.

4. Enhanced Durability

Accurate thickness enhances the durability of the ss foil, making it long-lasting in various applications.

5. Versatility in Use

Specific thickness tolerances cater to different industry needs, increasing the stainless steel foil’s versatility.

6. Aesthetic Considerations

In decorative applications, the uniform thickness provides a sleek appearance.

7. Environmental Benefits

Efficient use of materials minimizes environmental impact compared to traditional carbon steel foil.

8. Comparison with Other Materials

Unlike mild steel foil, the strict control of thickness in stainless steel ensures a higher quality end product.

9. Compatibility with Machines

Uniform thickness ensures seamless compatibility with different manufacturing machines and processes.

10. Customer Satisfaction

The consistent quality provided by accurate thickness tolerance leads to higher customer satisfaction and trust in the product.

What’s the difference between stainless steel foil and carbon steel or mild steel foil?

1. Corrosion Resistance

Stainless steel foil offers superior corrosion resistance compared to carbon and mild steel foil.

2. Tensile Strength

While stainless steel has excellent strength, mild steel foil might offer lower tensile strength.

3. Cost Considerations

Carbon steel foil may be more cost-effective but lacks the quality characteristics of stainless steel.

4. Thickness Tolerance

Stainless steel, with controlled thickness, provides consistency, unlike steel foil magnetic materials.

5. Applications

Different applications require distinct properties, with stainless steel being more versatile and suitable for various industrial uses.

6. Aesthetic Appeal

Stainless steel provides a sleek appearance, while carbon and mild steel may not be suitable for decorative purposes.

7. Environmental Impact

Stainless steel’s recyclability gives it an edge over carbon steel in terms of environmental sustainability.

8. Magnetic Properties

Unlike steel foil magnetic materials, stainless steel varieties may offer non-magnetic or lower magnetic properties.

9. Availability and Usability

The market availability and usability of stainless steel foil make it a preferred choice over carbon and mild steel in many scenarios.

10. Quality Control

With rigorous quality control, like that performed by Yaoyi, stainless steel ensures a superior product compared to other foils.

What applications can be found for stainless steel foil in various industries?

1. Electronics Industry

Used in connectors, screens, and batteries, stainless steel foil plays a crucial role in electronic devices.

2. Construction Sector

The durability and aesthetic appeal of stainless steel make it suitable for cladding and structural elements.

3. Automotive Industry

In vehicles, ss foil is used for parts like exhaust systems and trim, providing corrosion resistance.

4. Medical Field

Stainless steel’s hygienic properties make it suitable for medical instruments and implants.

5. Food Processing

Being non-reactive, stainless steel is widely used in food processing equipment and packaging.

6. Energy Sector

In solar panels and energy infrastructure, stainless steel foil offers strength and reliability.

7. Aerospace Industry

The toughness of stainless steel makes it an ideal material for aircraft components.

8. Comparison with Titanium Foil

While titanium foil is known for its lightweight, stainless steel provides a cost-effective alternative in many applications.

9. Decorative Purposes

For interior and exterior decoration, stainless steel offers a modern and sleek appearance.

10. Environmental Impact

By using recyclable stainless steel, industries contribute to sustainable practices.

What are the environmental benefits and sustainability aspects of using stainless steel foil?

1. Recyclability

Stainless steel can be recycled multiple times without losing its quality, reducing waste.

2. Energy Efficiency

Compared to carbon steel foil, producing stainless steel requires less energy, contributing to efficiency.

3. Longevity

The long lifespan of stainless steel reduces the need for replacements, conserving resources.

4. Sustainable Manufacturing

Some manufacturers, like Yaoyi, adhere to environmental standards in producing stainless steel foil.

5. Reduction in Pollution

Using stainless steel instead of mild steel foil may lead to reduced emissions and pollution.

6. Eco-friendly Applications

In green technologies like solar panels, stainless steel plays a vital role.

7. Waste Management

Efficient use of stainless steel minimizes waste during manufacturing and usage.

8. Comparison with Other Materials

Unlike steel foil magnetic materials, stainless steel’s recyclability adds to its environmental advantage.

9. Community Impact

By adhering to global standards, the production of stainless steel supports responsible community development.

10. Future Sustainability

With continuous research and innovation, stainless steel remains a forward-thinking choice for sustainable development.

How does the chemical composition of stainless steel foil determine its properties and applications?

1. Chromium Content

Higher chromium content enhances corrosion resistance, making the foil suitable for harsh environments.

2. Carbon Content

Carbon influences the hardness of stainless steel, allowing for applications like cutting tools.

3. Nickel Presence

Nickel increases the ductility of the steel, widening its use in flexible structures.

4. Molybdenum Addition

Molybdenum improves the foil’s resistance to pitting, making it ideal for chemical processing equipment.

5. Silicon and Manganese

These elements help in deoxidizing the steel, which contributes to cleaner and stronger ss foil.

6. Comparative Analysis

Stainless steel composition varies from carbon steel foil, resulting in distinct mechanical properties.

7. Innovative Solutions

Customizing the chemical composition allows the creation of specific foils for unique applications, such as titanium foil.

8. Analysis Techniques

Spectrometers, like those used by Yaoyi, provide precise analysis, ensuring consistent quality.

9. Regulatory Compliance

Compliance with standards ensures that the foil’s chemical composition meets specific industry requirements.

10. Future Research

Continued exploration of chemical compositions leads to innovative solutions for various industries.

How is stainless steel foil made, and what are the key stages in its manufacturing process?

1. Melting Stage

Raw materials are melted in a furnace, initiating the transformation into stainless steel.

2. Forming the Alloy

Elements like nickel and chromium are added to form the specific alloy, such as 300 series stainless steel.

3. Hot Rolling Process

The material is hot-rolled into coils, similar to how Yaoyi produces stainless steel roll.

4. Cold Rolling Process

Cold rolling refines the thickness, ensuring the tolerance is controlled within desired limits.

5. Heat Treatment

This stage stabilizes the microstructure, improving the mechanical properties of the foil.

6. Surface Finish

Processes like polishing provide the required surface finish, affecting the appearance and functionality.

7. Cutting and Slitting

The foil is cut and slit into desired widths, catering to various applications.

8. Quality Control

Rigorous quality checks, including tests for hardness and elongation, ensure that the product meets standards.

9. Packaging and Delivery

The finished stainless steel foil is packaged and delivered, adhering to international practices like ISO9001.

10. Innovation and Sustainability

The continuous improvement in techniques and adherence to sustainability standards mark the future of foil manufacturing.

What factors should be considered when choosing the right type of stainless steel foil for specific applications?

1. Corrosion Resistance

Understanding the environment in which the foil will be used helps in selecting the right alloy with corrosion resistance, such as 300 series stainless steel.

2. Strength Requirements

The choice between mild steel foil and stainless steel may depend on strength needs for load-bearing applications.

3. Thermal Conductivity

For applications that require temperature control, considering thermal properties is essential.

4. Formability and Weldability

For structures that require shaping and welding, the ductility of the foil is a key factor.

5. Appearance Preferences

The finish and aesthetics of the stainless steel foil could be significant for decorative purposes.

6. Compatibility with Other Materials

Ensuring that the chosen foil is compatible with other materials in the application avoids adverse reactions.

7. Regulatory Compliance

Meeting specific industry standards and regulations, such as ISO9001, ensures that the chosen foil is suitable for the application.

8. Budget Constraints

Evaluating the cost and availability of alternatives like titanium foil may influence the decision.

9. Supplier Reputation

Considering the quality control and techniques of the supplier, such as CNC systems used by Yaoyi, ensures a reliable product.

10. Environmental Considerations

Choosing a sustainable option like recyclable stainless steel aligns with environmental responsibilities and goals.

Message from Kay Zhang
Yaoyi, a family-owned stainless steel manufacturer, with 28+ years of experience. Get the best solution for stainless steel coils with us.