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Buy Wholesale AISI 304 2B Stainless Steel Coil For Your Business

AISI 304 stainless steel is widely used by consumers, businesses, industries, and many more. But have you ever heard of AISI 304 2B stainless steel and its capabilities? If not, then you have come to the right place!

AISI 304 2B’s high-quality engineered design is what makes this stainless steel outstanding. In fact, AISI 304 2B stainless steels are one of YAOYI’s best selling products, so what exactly makes it stand out? In this article, you will know the answer to that question and as well as learn everything you need to know about A-304 2B stainless steels.

Aisi 304 2b stainless steel

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Besides the 0.01~0.6mm stainless steel foil, you may need to purchase other 304 stainless steel products from China, please contact us if you have any questions.

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Table of Contents

What does AISI Stand For?

The meaning of AISI was found back in 1908, and it stands for American Iron and Steel Institute. AISI was one of the companies that contributed a lot of effort together with the Society of Automotive Engineering (SAE) in standardizing the numbering system for steel we have today.

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You can get the more cost-effective 301 stainless steel material from Yaoyi. Thickness 0.1 mm~0.3 mm, width 550-600 mm cold rolled stainless steel coil.

What does the 2B Mean?

2B is a term used to describe a smooth and reflective surface. The process of 2B involves cold rolling, heat treating, and pickling together with light rolling at the last part of the process to achieve that smooth and reflective surface.

2B is also considered the most used surface finish. This is the reason why most stainless steels are very shiny and reflective since 2B is the basis for polished and brushed finishes for stainless steel.

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What is 2B Steel?

The term 2B for stainless steel was used by ASTM A480 standard to define smooth and reflective cold-rolled annealed and pickled finish produced by adding the final process of light cold-rolled pass by using polished rolls.

What is ASTM A480?

2b stainless steel finish

ASTM A480 is not a company, but rather it is the specification that covers the general requirements for heat-resisting steel plates, flat-rolled stainless, stainless sheets, and stainless strips.

What is a 2B Finish?

As aforementioned, a 2B finish is the result of a stainless steel finish defined by its smoothness and moderate reflective cold-rolled finish which has a similarity of production with the 2D finish but without the light cold rolling process.

2B Finish is also known to be opposed to common brushed finishes seen on appliances since 2B is moderately reflective that is somewhat similar to a foggy or moist mirror. 2B finish is used among other steel grades including 304 stainless steel.

Th3 2B finish is easy to maintain which makes it very versatile for many uses such as industrial applications and other equipment.

How to do a 2B Finish?

304 2b stainless

The process of a 2B finish starts with cold rolling then on to the heat treating and lastly pickling. The final touch is what other finishes do not have, which is the application of a light rolling to attain that smooth and moderate reflective shine.

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AISI 304 2B Stainless steel Chemical Composition

304 2b

The chemical composition for AISI 304 2B has a similarity to the AISI 304 stainless steel because both 304 and 304 2B has Chromium and Nickel as its main elements or components.

A-304 2B contains 18%-20% Chromium and 8%-10.5% Nickel.

For its other elements here are the following:

  • Sulfur  0.030%           
  • Phosphorous  0.045%
  • Silicon 0.75%
  • Carbon 0.08%
  • Manganese 2%

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Mechanical Properties of AISI 304 2B

The mechanical properties for AISI 304 2B helps you understand why it is a good stainless steel. For you to determine which stainless steel is best for you, here is a list of Mechanical Properties from different stainless steel grades provided by YAOYI.

Steel Grade

The definition of steel grade is to classify different types of steel by looking into its mechanical properties and chemical composition. Each type of steel grade is different from one another as it has its own unique elements and purposes.

For AISI 304 2B, has low carbon (0.08%) and austenitic chromium-nickel components. 

Tensile Strength

Tensile strength is the resistance of steel to breaking under tension. Tensile strength plays a vital role in the flexibility or formability of the steel. For A-304 2B Stainless steel, it has a tensile strength of 74,694 PSI (Per square inch).

If you are not sure what tensile strength you should use for your projects, you can contact us by clicking/tapping here. YAOYI will guide you to what tensile strength is appropriate for your projects since the wrong tensile strength risks your project from breaking.

Yield Strength

Yield strength is when a steel is stressed by an amount that is less than it yields. This is also an important factor to determine a steel’s durability. Any steel that breaks easily under moderate tension is considered low steel grades that are not suited for big projects such as infrastructures.

In this case, the strength of AISI 304 2B is 70,343 PSI which means that it is capable of going under a large amount of stress without showing any signs of breaking or damage.


Some steels are capable of long stretches and this is important for its formability to be versatile. Steel elongation is the rate or percentage of how much the steel can stretch from its original length. AISI 304 2B has an elongation rate of 40% which is excellent for forming the steel into various shapes without breaking.

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How do you Use AISI 304 2B?


AISI 304 2B is used the same as the AISI 304 but since 2B is a term reference for a stainless steel finish, 304 2B has a smoother and moderately reflective finish than of the ordinary AISI 304 stainless steel.

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Common Uses

When it comes to common uses for the AISI 304 2B stainless steel, like any other type of steel, it is versatile as well but on a whole other level because of its mechanical properties and chemical composition.

Here are the common uses for A-304 2B stainless steel:

Commercial Food Processing

Yes, the AISI 304 2B is still a part of the food grade stainless steel level. In fact, 304s are the commonly used type for preparation, storage, and dining for food industries because of its corrosion-resistant and oxidation properties.

Chemical Containers

AISI 304 and A-304 2Bs are great for chemical containers as they can resist high levels of specific chemicals under moderate temperature and exposure to outside environment elements.

Kitchen Appliances

It is not surprising that 304 2B is present in kitchen appliances and kitchenware since most utensils in the kitchen have moderate to high reflective stainless steel materials including 304 2Bs.


Almost every construction has to have a 304 or 304 2B. This is the reason why people around the world always go for 304s because of its popularity and high endurance to extreme conditions and temperatures.

It’s moderate reflective shine is also what makes it attractive for most consumers.

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Is AISI 304 2B Good for Outdoors?

Yes, they are good for outdoors because their components contain elements that can handle the different conditions of climates. It is also corrosion-resistant, so you do not have to worry about getting it brittled.

Does AISI 304 2B Rust?

Yes, 304 2B stainless steel also rust in conditions where the environment has a high exposure level to chloride. Chloride can damage both types of 304s which is why it is not recommended to have projects near beaches or near shorelines.

Is AISI 304 2B Premium?

ss 304 2b finish

AISI 304 2B is considered a premium grade stainless steel. It has excellent components that enable it to resist corrosion and intergranular corrosion.

Premium Grade 304 Stainless Steel

Premium stainless steel grade 304-2b is a very low carbon, austenitic chromium-nickel steel with good corrosion resistance, superior resistance to intergranular corrosion following welding or stress relieving, and high malleability.

Is AISI 304 2B Reliable?

Yes, 304 2B is reliable and has a high longevity rate with little maintenance to keep its durability composed and healthy. This is one of the main reasons why industries prefer 304 steel grades because it is capable of withstanding various extreme conditions and environments.

This keeps them from worrying about the condition of their projects since AISI 304 2B stainless steels are heavily reliable.

Is AISI 304 2B Safe?

The same category with AISI 304, the 304 2B is also FDA approved, which means that there would be no problem in using it for food commercials, and kitchen appliances. It is completely safe and both corrosion-resistant and oxidation-resistant.

Is AISI 304 2B Magnetic?

stainless steel 304 2b

Unlike the AISI 304, the AISI 304 2B is not magnetic in its annealed condition and it cannot be hardened through heat treatment. But regardless of this, this is not something to be concerned about.

It is just that even little information about this can help extend our knowledge with regards to the steel we are learning about.

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Advantages And Disadvantages of AISI 304 2B stainless steel

There are more advantages than disadvantages of AISI 304 2Bs. This is because of its amazing design that makes it capable of handling almost everything negative it encounters. However, there are some disadvantages but it does not outweigh the benefits.

Let’s start with the goods ones. Here are the major advantages of A-304 2B.



Corrosion is a really big concern for other types of steel, which is why the 304 and 304 2Bs emphasize its protection on this. As you know by now, AISI 304 2Bs are corrosion-resistant and they are built to be consistent with this over a long period of time. 


The same goes with oxidation, AISI 304 2Bs are great in terms of oxidation-resistance. This helps you to not worry about its health, which keeps you from doing maintenance regularly. It can handle both high and low oxidation so you can leave as is in its area.

Intergranular Corrosion Resistant

When it comes to intergranular corrosion such as welding or stress relieving, and high malleability, the AISI 304 2B is capable of handling all of these concerns without risking your project of getting corroded.

High-temperature Endurance

AISI 304 2B is capable of withstanding high-temperatures that are limited to 800° F. So whether or not you are planning to build your project indoors or outdoors, that will not be a problem you would encounter with A-304 2B Stainless steels.


When it comes to AISI 304 2B stainless steel durability, you will not have to worry about that as well since it is capable of adjusting to various extreme temperatures, and it can take a little beating from typhoon debris every now and then.

It is essential to know that 304 2Bs is good for long-term projects since its longevity outperforms other low grades.


Weak in Environments with High-Level Exposure to Chloride

Chloride can easily rust 304s and 304 2Bs, this is because its elements cannot withstand chloride, resulting in rust and pitting.

Difficult to Machine

AISI 304 stainless steels are known to have difficult machining characteristics due to their rapid hardening rate. This goes the same for A-304 2B stainless steel as well since it almost have the same characteristics as the 304.

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If you need stainless steel for your projects that require versatility, 2B finished, and durable then AISI 304 2B is highly recommended for the best results whether indoors or outdoors. It’s only main key weakness is that it cannot withstand high-level exposure of chloride. So, do consider that if you live near a Beach.

But regardless, AISI 304 2B stainless steel is a great product and will be continued to be used on for many generations to come. Should you require more assistance, our YAOYI service team will keep in touch.

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