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ASTM A240 309S stainless steel plate/sheet steel plate

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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