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The demand for reliable materials in cryogenic service applications has increased significantly with the rapid growth of LNG terminals, industrial gas storage facilities, and low-temperature pressure vessels.2026-06-24
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While both ASTM A203 Grade B and ASTM A106 Grade B serve critical roles in industrial applications, they are fundamentally different in composition, purpose, and performance.2026-06-01
SS400 steel plate standard, ss400 steel plate mechanical property

Under JIS3101 standard, SS400 is one of the most commonly used hot rolled general structural steel, such as buildings, bridges, ships, rail vehicles and other structures.
Size range of SS400 steel plate:
Thickness: 0.8mm—150mm
Width: 1000mm--4000mm
Length: 3000mm—18500mm.
SS400 steel plate’s chemical composition:
|
Grade
|
The elements, max (%) |
|||||
|
C≤ 16 mm |
C>16 mm |
Si |
Mn |
P |
S |
|
|
SS400 |
0.17 |
0.20 |
-- |
1.40 |
0.045 |
0.045 |
SS400 steel plate Mechanical properties:
|
Thickness
|
Yield Strength ReH[N/mm2] transv.min. |
Tensile Strength Rm[N/mm2]transv. |
Fracture Elongatin [%] transv. min. |
Notch Impact Energy 1)Ch V complete samplelongitud. min [J] |
|
t≤ 16 mm t >16 mm |
235 |
|
|
20 degree 27J |
|
t < 3 mm |
|
360-510 |
|
|
|
Up to 1.5 mm 1.51-2.00 mm 2.01-2.50 mm 2.51-2.99 mm ≥ 3 mm |
|
|
16 |
When customers order SS400 steel plate from us, our mill should be roll them completely according to JIS3101 specifications, the mill would issue original Mill test certificates before taking delivery for checking.
More information about SS400 steel plate, please contact us.

