A588 low alloy high strength steel comprising A588GrA, A588GrB, A588GrC. A588 steel in the metal matrix surface to form a protective layer, so as to have a high resistance to atmospheric corrosion.
A588 Grade A steel is widely used in a variety of weather-resistant building structural parts (especially for industrial atmospheric environment), bridge auxiliary structural parts, etc.
A588 Grade A Chemical Composition:
|
Carbon, % |
Manganese, % |
Cr % |
Silicon % |
N % max |
Sulfur % |
|
Max 0.19 |
0.80-1.25 |
0.40-0.65 |
0.30-0.65 |
0.010 |
0.040 |
|
Cu % |
Phosphorus % |
Ni % |
Mo % |
|
|
|
0.25-0.40 |
0.05 |
0.40 |
…. |
|
|
A588 Grade Mechanical Property:
|
Thickness(mm) |
Yield strength (Mpa) Min. |
Tensile strength (Mpa) Min. |
Elongation in ≥,% |
|
|
|
200mm |
50mm |
||
|
T≤100 |
345 |
485 |
18 |
21 |
|
100<T≤125 |
315 |
460 |
... |
21 |
|
125<T |
290 |
435 |
... |
21 |
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