A283 Grade A and A283 Grade B are both low and intermediate tensile strength carbon steel plates used for general structural applications, but they have different mechanical properties. A283 Grade A has a higher minimum yield strength of 165 MPa, and a tensile strength of 310-415 MPa, with lower carbon content than Grade B. A283 Grade B has a minimum yield strength of 185 MPa and a tensile strength of 345-450 MPa.
Chemical Composition
|
A283 Grade A Chemical Composition |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Cu (min) |
|
|
A283 GR.A |
0.14 |
0.15-0.40 |
0.90 |
0.035 |
0.04 |
0.20 |
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
|
A283 Grade B Chemical Composition |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Cu (min) |
|
|
A283 GR.B |
0.17 |
0.15-0.40 |
0.90 |
0.035 |
0.04 |
0.20 |
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
Mechanical Property
|
Grade |
A283 Grade A Mechanical Property |
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|
Thickness |
Yield |
Tensile |
Elongation |
|
|
A283 GR.A |
mm |
Min Mpa |
Mpa |
Min % |
|
t≦50 |
310-415 |
165 |
30 |
|
|
50<t≦200 |
310-415 |
165 |
27 |
|
|
Grade |
A283 Grade B Mechanical Property |
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|
Thickness |
Yield |
Tensile |
Elongation |
|
|
A283 GR.B |
mm |
Min Mpa |
Mpa |
Min % |
|
t≦50 |
345-450 |
185 |
28 |
|
|
50<t≦200 |
345-450 |
185 |
25 |
|
|
Equivalent steel grade of A283 Grade A |
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|
Europe |
Belgium |
Germany |
France |
Italy |
Sweden |
India |
Japan |
U.K |
|
S185,Fe 310-0 |
A 320 |
St 33 |
A 33 |
Fe 320 |
SS13,00,00 |
|
SS 330 |
|
|
Equivalent steel grade of A283 Grade B |
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|
Europe |
Belgium |
Germany |
France |
Italy |
Sweden |
India |
Japan |
U.K |
|
S185,Fe 310-0 |
A 320 |
St 33 |
A 33 |
Fe 320 |
SS13,00,00 |
|
SS 330 |
|
