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Gnee Grade : |
JIS G3106 SM400B |
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Specification (mm) |
THK: 6 to 300, Width: 1500 to 4050, Length: 3000 to 27000 |
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Standard: |
JIS G3106 Standard Specification is for Rolled Steels for Welded Structure. |
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Approval By Third Party |
ABS, DNV, GL, CCS, LR , RINA, KR, TUV, CE |
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Classification: |
Controlrolled weldable fine grain structural steels |
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SM400BChemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
Cu (min) |
|
|
SM400B |
0.20-0.22 |
0.35 |
0.6-1.50 |
0.035 |
0.035 |
- |
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Grade |
SM400BMechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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|
SM400B |
mm |
Min Mpa |
Mpa |
Min % |
|
t≦16 |
245 |
400-510 |
18 |
|
|
16<t≦90 |
215-235 |
400-510 |
24 |
|
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Equivalent steel grade of SM400B |
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Europe |
Belgium |
Germany |
France |
Italy |
Sweden |
India |
USA |
U.K |
|
S235 J0 |
AE235B |
St37-3U |
E 24-3 |
Fe 360 C |
SS 13,12,00 |
Fe 410-S |
A284 gr, D |
40C |
SM400B steel plate, with a minimum yield strength of 245 MPa and a tensile strength range of 400–510 MPa, is commonly used in medium-strength welded structures that require better impact toughness.
Since SM400B is guaranteed to meet 0℃ impact performance, it is often selected for load-bearing building components such as support beams, bridge girders, and industrial frame structures.
Its elongation rate of ≥23% ensures reliable formability during fabrication, making it suitable for manufacturing machinery bases, lifting equipment frames, large support brackets, storage tanks, and steel platforms used in civil and industrial engineering projects.
