Performance 301 stainless steel strip Yield strength (N/mm2) ≥205 Tensile strength ≥520 Elongation (%) ≥40 Hardness HB ≤187 HRB ≤90 HV ≤200 Density 7.93 g·cm-3 Specific heat c (20℃) 0.502 J·(g·C)-1 Thermal conductivity λ/W (m·℃)-1 (at the following temperature/℃) 20 100 50012.1 16.3 21.4 Linear expansion coefficient α/(10-6/℃) (at the following temperature room/℃) 20～100 20～200 20～300 20～40016.0 16.8 17.5 18.1 Resistivity 0.73 Ω·mm2·m-1 Melting point 1398～1420℃

●Mechanical properties: Tensile strength σb (MPa): ≥520 Conditional yield strength σ0.2 (MPa): ≥205 Elongation δ5 (%): ≥40 Area shrinkage ψ (%): ≥60 Hardness: ≤187HB ;≤90HRB;≤200HV

●Heat treatment specifications and metallographic structure: Heat treatment specifications: solid solution 1010~1150℃ rapid cooling. Metallographic structure: The structure is characterized by austenitic structure. A kind of high-alloy steel that can resist corrosion in the air or chemically corrosive media. Stainless steel has a beautiful surface and good corrosion resistance. It does not need to undergo surface treatment such as color plating, but can utilize the inherent surface properties of stainless steel and is used in many applications. A type of steel, often called stainless steel. Representative performance include 13 chromium steel, 18-8 chromium-nickel steel and other high alloy steels. From a metallographic point of view, because stainless steel contains chromium, a very thin chromium film is formed on the surface. This film isolates the oxygen that intrudes into the steel and plays a role in corrosion resistance. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium.

304 is a versatile stainless steel that is widely used to make equipment and parts that require good comprehensive properties (corrosion resistance and formability). 304 stainless steel is a brand of stainless steel produced in accordance with American ASTM standards. 304 is equivalent to my country's 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 contains 17% chromium and 7% nickel.

301 stainless steel strip is the most widely used stainless steel and heat-resistant steel. Used in food production equipment, Xitong chemical equipment, nuclear energy, etc. Chemical composition specifications of 304 stainless steel C Si Mn P S Cr Ni (nickel) MoSUS431 ≤0.08 ≤1.00 ≤2.00 ≤0.05 ≤0.03 18.00-20.00 8.25~10.50 -304 is 1Cr17Ni7.

301 stainless steel strip (17Cr-7Ni-carbon) material: Compared with 304 steel, it has less Cr and Ni content. The tensile strength and hardness increase during cold working. It is non-magnetic, but becomes magnetic after cold working. Applications: trains, aircraft, conveyor belts, vehicles, bolts, springs, screens. Note: L stands for low carbon. For example, 304L has lower carbon content than 304. H and S represent high temperature resistance. For example, 310S is more heat-resistant than 310, and 304H is more heat-resistant than 304.