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Study Stainless Steel Technical Made Simple: A Step-by-Step Guide

Do you know what should know when purchasing stainless steel materials? What is the Stainless Steel Technical?

If you're a steel industry insiders like me , you probably need to know those stainless steel technical.

Stainless steel technical knowledge directly affects the purchase of stainless steel or the use of stainless steel materials. From articles and videos to information icons, stainless steel buyers talk about finding the most strategic way to purchase stainless steel materials.

Stainless Steel Grade Standard

Stainless steel material standard comparison table

Stainless steel Chemical Composition

Stainless steel Chemical Composition

Stainless teel Mechanical Properties

Mpa Yield Strength

Mpa Yield Strength: Refers to the stress that the material bears when yielding occurs. The unit is MPa. It is an intrinsic property of the material and represents the critical stress value of material yielding. It is often used to determine the maximum allowable load of mechanical parts.

Mpa Tensile Strength

The tensile strength is the critical value for the transition of stainless steel from uniform plastic deformation to local concentrated plastic deformation, and it is also the maximum bearing capacity under static tension conditions. In short, the essence is the maximum uniform plastic deformation resistance of stainless steel, the symbol is Rm, and the unit is MPa.


For example, no matter how large the cross-sectional area of a 304 stainless steel rod is, its tensile strength is only related to the 304 stainless steel material and has nothing to do with the cross-sectional area.


The unit conversion is as follows:

1MPa=1N/mm²=100N/cm²

Stainless Steel Mechanical Properties

Stainless steel Strip Thickness Tolerance Range

Tolerance refers to the amount of change in thickness that meets the nominal size.


The thinner the stainless steel, the smaller the tolerance. For example, it is more common for a hot-rolled coil with a thickness of 3.0mm to be pressed into a thickness of 1.2mm, which may be plus or minus 2-4, but when pressed to 0.3, the thickness is only 1-2 C, because The thinner you press, the more processes and the less negative the thickness difference.


Stainless steel Strip Thickness Tolerance Range

Stainless steel Strip Width Tolerance Range


Stainless steel Strip Width Tolerance Range

Camber Allowance



Camber Allowance

Slit Burr

  • The burr of general request less than 10% of strip thickness

  • The burr of high request less than 5% of strip thickn

Comparison Table of Tensile Strength and Hardness

Hardness test is the simplest and most feasible test method in the mechanical performance tests. In order to replace certain mechanical performance tests with hardness tests, a more accurate conversion relationship between hardness and strength is required in production. Practice has proved that between various hardness values of metal materials, there is an approximate corresponding relationship between the hardness value and the strength value.


Because the hardness value is determined by the initial plastic deformation resistance and the continued plastic deformation resistance, the higher the strength of the material, the higher the plastic deformation resistance and the higher the hardness value.



Comparison table of tensile strength and hardness

Main Product Technical Information

301 stainless steel strip
304 stainless steel strip
316 stainless steel strip

ASTM Standard Technical Information

ASTM A479
ASTM A313
ASTM A276
ASTM A666
ASTM A240
ASTM, A182
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