Stainless Steel 301 Coil, Thickness: 0.1 To 100 Mm
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301 stainless steel corresponding to the new Chinese brand :12Cr17Ni7 old brand 1Cr17Ni7.

Chemical composition %

C: 0.15 or less,

Si: 1.0 or less.

Mn: 2.0 or less.

Cr: 16.0 ~ 18.0,

Ni: 6.0 8.0,

S: 0.03 or less,

P: 0.045 or less


301 stainless steel yield strength (N/mm2)≥205

Tensile strength ≥520 elongation (%)≥40

Hardness HB ≤187 HRB≤90 HV ≤200

The density of 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 /℃)20 100 500 12.1 16.3 21.4

Linear expansion coefficient α/(10-6/℃) (at the following temperature /℃) 20~100 20~200 20~300 20~400 16.0 16.8 17.5 18.1

Resistivity 0.73 ω ·mm2·m-1

The melting point of 1398 ~ 1420 ℃

Mechanical properties of

Tensile strength σ B (MPa):≥520

Conditional yield strength σ0.2 (MPa):≥205

Elongation δ5 (%):≥40

ψ (%):≥60

Hardness: 187 hb or less; 90 HRB or less; 200 hv or less

Heat treatment specification and metallographic structure

Heat treatment specification: solution 1010~1150℃ fast cooling.

Metallographic structure: The structure is characterized by austenite type.

In the air or chemical corrosion medium can resist corrosion of a high alloy steel, stainless steel is a beautiful surface and good corrosion resistance, do not have to be plated and other surface treatment, and play the inherent surface properties of stainless steel, used in many aspects of a kind of steel, usually called stainless steel. On behalf of the performance of 13 chromium steel, 18-8 chromium nickel steel and other high alloy steel. From the metallographic point of view, because stainless steel contains chromium and the surface of the formation of a very thin chromium film, the film separated from the oxygen in the steel invasion of corrosion resistance. To maintain the corrosion resistance inherent in stainless steel, steel must contain more than 12% chromium. 304 is a universal stainless steel, which is widely used in the manufacture of equipment and parts requiring good comprehensive properties (corrosion resistance and formability). 304 stainless steel is a brand of stainless steel produced in accordance with ASTM standards in the United States. 304 is equivalent to China's 06Cr19Ni10 (0Cr18Ni9) stainless steel. 304 contains 18% chromium and 8% nickel. 301 is the most widely used stainless steel, heat resistant 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 Minus 304 is 0Cr18Ni9. 301(17Cr-7Ni-carbon) material: compared with 304 steel, Cr and Ni content is less, tensile strength and hardness increase during cold processing, no magnetic, but after cold processing magnetic. Application: train, aircraft, conveyor belt, vehicle, bolt, spring, screen. Note :L stands for low carbon, for example, 304L contains less carbon than 304. H and S represent high temperature resistance, such as 310S than 310 high temperature resistance, 304H than 304 heat resistance.

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