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Product Introduction：
309S is cutting stainless steel containing sulfur, the main requirements for cutting and surface finish high occasions. Widely used in important areas boilers, energy (nuclear power, thermal power, fuel cells), industrial furnaces, incinerators, furnaces, chemical, petrochemical, and other.The only difference is that 309 stainless steel does not contain sulfur, and now basically produce steel 309S material. Both can be summed up as the same material.,have the same purpose.To some extent, the carbon content of 309S is lower than 309.
Chemical Composition
Grade （材质） | C(%) （碳） | Si(%) （硅） | Mn(%) （锰） | P(%) （磷） | S(%) （硫） | Cr(%) （铬） | Ni(%) （镍） | N(%) （氮） | Cu(%) （铜） |
309 | ≤0.25 | ≤1.0 | ≤2.0 | ≤0.045 | --- | 22.0-24.0 | 12.0-15.0 | --- | --- |
309S | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 22.0-24.0 | 12.0-15.0 | --- | --- |
Mechanical Property
Grade （材质） | Tensile strength Mpa （抗拉强度） | Yield Strength Mpa （屈服强度） | Elongation (%) （伸长率） | rate of reduction in area (%) （断面收缩率） | Density (g/cm3) （密度） |
309 | ≥475 | ≥180 | ≥40 | ≥50 | 7.98 |
309S | ≥515 | ≥205 | ≥40 | ≥50 | 7.98 |
Specifications
Technical （工艺） | Thickness （厚度） | Width （宽度） | Finish （表面） | Origin （产地） |
Cold rolled | 0.8mm-3.0mm | Standard:1000mm 1219mm 1500mm Special:can be ordered | 2B / No.4 / HL / BA/Mirror/Checkered/Colored etc | TISCO / ZPSS etc |
Hot rolled | 3.0mm-100.0mm | Standard :1219mm 1500mm 2000mm Special:can be ordered | No.1/No.4/HL/Mirror etc | TISCO / ZPSS etc |
Applications
309 309S stainless steel is mainly used for easy cutting and high surface finish.
And 309 309S stainless steel with corrosion resistance, excellent high temperature performance, it can withstand 980 C high temperature.So it is widely used in energy (nuclear power, thermal power, fuel cell), industrial furnace, heating furnace, incinerator, chemical, petrochemical and other fields.
Different Production Standards
Grade （材质） | GB/T 1220-2007 （国标） | ASTM （美标） | DIN （欧标） | JIS （日标） | KS （韩国） |
309 | 16Cr23Ni13 | 309 | 1.4828 | SUS309 | STS309 |
309S | 06Cr23Ni13 | 309S | 1.4833 | SUS309S | STS309S |
More about for 309/309S
The corresponding 309S China brand is 0Cr23Ni13, American Standard S30908 (AISI, ASTM) properties and uses: corrosion resistance and heat resistance are better than 0Cr19Ni9. 309 compared with 309S, no sulfur content of S.
309S is a variant of the 309 stainless steel with low carbon content, used for welding. The lower carbon content reduces the amount of carbides precipitated in the heat affected zone near the weld, and the precipitation of carbides may lead to intergranular corrosion (corrosion) of stainless steel in some environments.
