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The following material properties are ASTM specifications and will be confirmed on the Mill Test Report.
Grade | Yield Point (ksi) | Tensile Strength (ksi) | Min. 8” Elongation % |
C | 30 | 55-75 | 22 |
D | 33 | 60-80 | 20 |
The following composition properties are ASTM specifications for the A283 grade.
Grade C | |
Carbon max | 0.24% |
Manganese max | 0.90% |
Phosphorus max | 0.030% |
Sulfur max | 0.030% |
Silicon max, plates ≤ 1 1/2" thick | 0.40% |
Silicon, plates over 1 1/2" thick | 0.15-0.40% |
Copper min | 0.20% |
Grade D | |
Carbon max | 0.27% |
Manganese max | 0.90% |
Phosphorus max | 0.030% |
Sulfur max | 0.030% |
Silicon, plates ≤ 1 1/2" thick | 0.40% |
Silicon, plates over 1 1/2" thick | 0.15-0.40% |
Copper min | 0.20% |