Description
309S / 1.4950 Stainless Steel Coil
309S is a free cutting stainless steel with sulfur, used in applications where free cutting and high surface smoothness are the main requirements.
309S corresponding to the Chinese brand is 0Cr23Ni13, the American standard S30908 (AISI, ASTM) characteristics and use: corrosion resistance, heat resistance are better than 0Cr19Ni9.
The 309S is a variant of the lower carbon 309 stainless steel for use where soldering is required.
The lower carbon content minimizes the precipitation of carbides in the heat affected zone near the weld, which may lead to intergranular corrosion (welding erosion) of stainless steel in some environments.
It can withstand repeated heating below 980 ℃, and has high high temperature strength, oxidation resistance and carburizing resistance.
Application: Furnace material.
Widely used in boilers, energy (nuclear power, thermal power, fuel cell), industrial furnaces, incinerators, heating furnaces, chemical, petrochemical and other important fields.
Equivalent Material of 309S Stainless Steel Coil
| Grade | Euronorm | China GB | Japanese JIS | ASTM |
| No. | ||||
| 309S | 1.4950 | 0Cr23Ni13 | SUS309S | S30908 |
Standard Specification Of 309S coil
| Thickness | 0.3mm-12.0mm |
| Width | 600mm, 700mm, 800mm, 900mm,
1000mm, 1200mm, 1220mm, 1500mm, etc |
| Length | Per Coil |
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8,
8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Finish | Cold rolled coil (CR), 2B, 2D,
BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Coils, Foils, Rolls, Plain Sheet,
Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, |
309S stainless steel composition content.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 309S | Min. Max. |
≤0.08 | ≤2.0 | ≤1.00 | ≤0.045 | ≤0.03 | 22.0-24.0 | / | 12.0-15.0 | |
Yield strength/Mpa: ≥ 205
Tensile strength /MPa: ≥515
Elongation /% : ≥ 40
Section reduction rate /% : ≥50
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