Plate A283 Gr.C

Composition

Elements	Heat Analysis, %
Elements	Grade A	Grade B	Grade C	Grade D
Carbon, max	0.14	0.17	0.24	0.27
Manganese, max	0.90	0.90	0.90	0.90
Phosphorus, max	0.035	0.035	0.035	0.035
Sulfur, max	0.04	0.04	0.04	0.04
Silicon – Plates 1 1⁄2 in. [40 mm] and under, max	0.40	0.40	0.40	0.40
Silicon – Plates over 1 1⁄2 in. [40 mm]	0.15–0.40	0.15–0.40	0.15–0.40	0.15–0.40
Copper, min % when copper is speciﬁed	0.20	0.20	0.20	0.20

Elements	Grade A	Grade B	Grade C	Grade D
Tensile strength, ksi [MPa]	45–60 [310-415]	50–65 [345-450]	55–75 [380–515]	60–80 [415–550]
Yield point, min, ksi [MPa]	24 [165]	27 [185]	30 [205]	33 [230]
Elongation in 8 in.[200 mm],min,%*	27	25	22	20
Elongation in 2 in.[50 mm],min,%*	30	28	25	23