ASTM A131 Grade B steel plate is a type of shipbuilding steel mainly used in shipbuilding and platforms. Grade B shipbuilding steel plates are commonly used tensile strength steels. As a professional A131 B-grade shipbuilding steel plate exporter, GNEE Group can supply high-quality B-grade steel plates at the most competitive prices. ASTM A 131 steel plates for shipbuilding can be used to manufacture ship hull structures weighing less than 10,000 tons.
Grade B steel Chemical Composition:
Grade |
C max |
Si max |
Mn |
P max |
S max |
|
Grade B |
0.21 |
0.35 |
0.80-1.20 |
0.035 |
0.035 |
Note: CE: C+1/6Mn ≤ 0.40% Cu ≤ 0.35%,Ni ≤ 0.30%≤
Grade B steel Mechanical Property:
Grade |
Rm |
Re(MPa) min |
A% min |
Akv/J min |
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|
Grade B |
400-520 |
235 |
22 |
E.T °C |
Thickness (mm) |
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|
0 |
≤ 50 |
>50-70 |
>70-100 |
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|
L |
C |
L |
C |
L |
C |
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|
27 |
20 |
34 |
24 |
41 |
27 |
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Note: In the list , Rm: .tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.
Grade B steel Condition Of Delivery:
Grade |
category |
The thickness of steel |
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|
≤ 12 |
>12.5-25 |
>25-35 |
>35-50 |
>50-100 |
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|
Grade B |
Plate/sheet |
A(-) |
A(50) |
N(50),TM(50) |
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|
Profile steel |
- |
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