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SM400B is a kind of welding structural steel in the standard JIS G3106 . SM400B commonly used in the engineering and construction industry, SM400B offers low yield and tensile strength and is supplied with a variety of treatments .SM400B steel plates usual supplied in control rolled delivery condition.
Standard: JIS G3106
Dimension range : 1.5mm -620mm x 1000mm-4000mm x 1000mm-18000mm
JIS G3106 SM400B structural steel sheet Mechanical Properties :
Mechanical Properties
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Grade |
Tensile test (transverse) |
V notch impact test |
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Upper yield strength MPa |
Tensile strength MPa |
Elongation% |
180°Bend test b≥35mm Inner diameter |
Temperature °C |
Energy J |
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L=50 b=25 |
L=200 b=40 |
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Nominal thickness mm |
Nominal thickness mm |
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≤16 |
>16 |
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≤5 |
>5~16 |
>16 |
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SM400B |
≥245 |
≥235 |
400~510 |
≥23 |
≥18 |
≥22 |
2a |
20 |
≥27 |
SM400B Mild steel sheet Chemical composition(%) :
Chemical composition
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Grade |
Thickness mm |
C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
SM400B |
≤50 |
0.20 |
0.35 |
0.60~1.40 |
0.035 |
0.035 |
50~200 |
0.22 |
- |
- |
- |
- |
Ceq ≤ 0.44 (≤50mm thickness) 0.47 (50~100mm thickness)
Ceq(%)=C+Mn/6+Si/24+Ni/40+Cr/5+Mo/4+V/14
Delivery Status : Rolling, rolling or normalizing probe
SM400B Carbon steel plate application :
SM400B JIS G3106 is used for the structure part with high requirement of mechanical property and welding performance in building, bridge, ship , automobile, peritoneum container and construction vehicles.
Related Product:
SM400A, SM400C, 0002807bd43ceaeb15C4Cdc9d6b74a41, SM490B, SM490C, SM490YA, SM490YB