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SA283 GrA carbon structural steel plates

SA283 GrA and SA283 Gr.A are the same grade with different writing methods. They are carbon structural steel plates with less than 0.8% carbon. The sulfur, phosphorus and non-metals inclusions contained in SA283 GrA steel are fewer than in carbon structural steel, and SA283 GrA steel mechanical properties are better.

Smelting analysis of chemical composition of SA283 GrA carbon structural steel plates:

Grade Thickness C Si Mn P S Cu
SA283 GrA ≤40mm ≤0.14 ≤0.40 ≤0.90 ≤0.035 ≤0.040 ≥0.20
>40mm ≤0.14 0.15-0.40 ≤0.90 ≤0.035 ≤0.040 ≥0.20

Mechanical properties of SA283 GrA carbon structural steel plates:

Grade Tensile strength MPa Yield strength MPa 200mm Elongation A% 50mm Elongation A%
SA283 GrA 310-415 ≥165 27 30

SA283 GrA steel plate is widely used in the riveting, bolting and welding of structural parts for bridges and buildings. It is a carbon structural steel of structural steel quality for general purposes.

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