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ASTM A131 Grade A offshore platform steel plate
Source:Xin Steel Industry Date:2013/07/17
A131 Grade A steel plate is common strength shipbuilding plate which is mainly used for built hull of vessels,ship body construction.Normally when rolling,Air rolled and Control Rolled is ok for ship plate A131 Grade A with the thickness equal and belows 40 Millimeters,and for thickness above 40mm,the heat treatment shall be Normalised or TMCP,these two technical treatment would improve steel strength in yield and tensile points.
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Other relative steel grade in ASTM A131,there are oil platform steel plate A131 Grade A,shipbuilding steel plate A131 Grade B,marine steel plate A131 Grade D,off-shore steel plate A131 Grade E,ship steel plate A131 Grade AH32,steel plate for shipbuilding A131 Grade AH36,Naval steel plate A131 Grade AH40,High strength ship plate A131 Grade DH32,ship plate steel A131 Grade DH36,platform steel plate A131 Grade DH40,shipbuilding plate A131 Grade EH32,steel plate A131 Grade EH36,ship plate A131 Grade EH40,plate steel shipbuilding A131 Grade FH32,A131-FH36 shipbuilding steel grade,marine plate A131 Grade FH40.
Chemical composition of Heat analysis for Shipbuilding steel plate ASTM A131 Grade A (Max %):
|
C |
Si |
Mn (Min) |
P |
S |
|
0.21 |
0.50 |
2.5*C |
0.035 |
0.035 |
Mechanical properties for Shipbuilding steel plate ASTM A131-A:
|
Yield strength (Mpa) |
Tensile strength (Mpa) |
Steel Mark |
|
235 |
400-520 |
A131-A |