SM400A steel plate is a low carbon, mild structural steel grade specified in the JIS G3106 standard. It is designed for use in welded steel structures that require reliable strength and moderate load-bearing performance.
With a minimum yield strength of 245 MPa, SM400A offers good toughness and is easy to fabricate during processes such as welding, cutting, forming, and machining. Its stable material properties make it a cost-effective solution for large-scale construction and industrial manufacturing projects.
JIS G3106 SM400A Plate Chemical Composition and Mechanical Property
Grade |
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Chemical composition % MAX |
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C |
Si |
Mn |
P |
S |
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TH(MM) |
≤50 |
>50≤200 |
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SM400A |
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0.23 |
0.25 |
~ |
≥2.5xC |
0.035 |
0.035 |
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Mechanical properties MIN |
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Yield strength (N/MM2) |
Tensile strength (N/MM2) |
Elongation |
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TH(MM) |
≤16 |
>16-40 |
>40-75 |
>75-100 |
>100-160 |
>160-200 |
≤100 |
>100-200 |
≤15 |
>5-16 |
>16-50 |
>40 |
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245 |
235 |
215 |
215 |
205 |
195 |
400~510 |
400~510 |
≥23 |
≥18 |
≥22 |
≥24 |
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JIS G3106 SM400A Carbon and Low-alloy High-strength Steel Plate Application
JIS G3106 SM400A Steel Plate are used in Construction of Bridges, Highway Construction and Other Engineering construction
Other Terms
Packaging Details: Standard export seaworthy packing or as required.
Delivery Time: 30-50 days, 7 days for stock goods.
Loading Port: Shanghai ,Tianjin, Qingdao.
Offer Ability:5 000MT/Per Month.
MOQ: 1 Pcs.
