1.Surface Treatment: As the customers' requests
2.Standard:ASTM
3.Grade:300 series
4.Good quality and low price
We supply this grade in the following forms: Bar, wire, sheet, plate, coil, fasteners and forgings.
Alloy 309 is an austenitic chromium-nickel stainless steel which has excellent heat-resisting properties. Alloy 309 has improved corrosion resistance and better creep strength than alloy 304. Alloy 309 is used in furnace parts, fire box sheets, high temperature containers and weld wire.
Typical analysis in percent
C | MN | P | S | Si | Cr | Ni | Fe |
0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 22.0-24.0 | 12.0-15.0 | Balance |
Typical mechanical properties(At room temperature)
Ultimate tensile strength(mpa) | Yield strength(mpa) | Elongation in 50 mm(%) |
620 | 276 | 50 |