Composition
A283 Standard
Elements | Heat Analysis, % | |||
---|---|---|---|---|
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 |