Under specification ASTM A633/A633M,it covers steel grade A633 Grade A,A633 Grade C,A633 Grade D as well as ASTM A633 Grade E.All the steel plates belong to Normalized high strength low alloy structural steel for welded, riveted, or bolted construction.
Heat Treatment: Normalized for ASTM A633 Grade E material over 75mm in thickness shall be double normalized or As rolled ( If customer indicated in their order and accepted)
Note: For ASTM A633 Grade C manganese content may be increased to 1.60% maximum provided the carbon content does not exceed 0.18%.
Steel Grade |
Chemical composition % ≤ |
|||||
|
C |
Mn |
Si |
P |
S |
Nb |
A633 Grade C |
0.20 |
1.15-1.50 |
0.15-0.50 |
0.035 |
0.040 |
0.01-0.05 |
For steel plate ASTM A633 Grade C Belows 65mm in thickness,Tensile Strength shall be between 485-620 Mpa.Yield Strength shall be above 345 Mpa.
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