Type 309S Stainless Steel are austenitic chromium-nickel stainless steels that provide excellent corrosion resistance and heat resistance plus good strength at room and elevated temperatures.
ASTM A240 309S Steel is identical to Type 309 except for a lower carbon content that minimizes carbide precipitation and improves weldability. They are essentially nonmagnetic as annealed and become lightly magnetic when cold worked.
ASTM A240 309S Chemical Composition:
Grade |
The Element Max (%) |
||||||
C |
Mn |
P |
S |
Si |
Cr |
Ni |
|
ASTM A240 309S |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
22.0-24.0 |
12.0-15.0 |
Mo |
N |
Cu |
|||||
ASTM A240 309S Mechanical Property:
Grade |
Mechanical Property |
||||
Yield |
Tensile |
Elongation |
Hardness, max |
||
ASTM A240 309S |
Min Mpa |
Mpa |
Min % |
Brinell |
Rockwell B |
205 |
515 |
40% |
217 |
95 |
|
ASTM A240 309S Widely used in boilers, energy (nuclear power, thermal power, fuel cells), industrial furnaces, incinerators, heating furnaces, chemical, petrochemical and other important areas.
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