JIS 3106 SM400A,SM400B,SM400C application:
SM400A,SM400B,SM400C steel are kind of hot rolled steels to be used for bridges, ships, rolling stocks, petroleum storage tanks,containers and other contstructions that are required superiority in weldability.
Symbol of grade
Symbol of grade |
Applicable thickness mm |
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Steel plates ,coil, sections, and flat 200 or under |
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Steel plates ,coil, sections, and flat 200 or under |
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Steel plates ,coil, sections 100 or under |
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SM 400A,SM400B,SM400C chemical composition
GRADE |
Si |
Mn |
P |
S |
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|
≤ |
|||||
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≤0.25 |
-- |
2.5*C min. |
0.035 |
0.035 |
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≤0.22 |
-- |
0.60-1.40 |
0.035 |
0.035 |
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|
≤0.18 |
-- |
≤1.40 |
0.035 |
0.035 |
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SM 400A,SM400B,SM400C mechanical property
GRADE |
Tensile Strength（σb/MPa） |
Offset Yield Strength（σs/MPa） |
Elongation |
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|
% |
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400-510 |
≥245 |
18 min. |
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400-510 |
≥245 |
18 min. |
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400-510 |
≥245 |
18 min. |
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REMARK: The above data is calculated based on 16mm thickness steel plate.
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