Carbon | Manganese | Phosphorus,max | Sulfur,max | Silicon | Nickel | Chromium | Molybdenum |
---|---|---|---|---|---|---|---|
0.20 | 0.40 | 0.020 | 0.020 | 0.13–0.45 | 2.18–4.07 | 0.94–1.96 | 0.16–0.69 |
Class |
Tensile strength,min: ksi [MPa] |
Yield strength,min: ksi [MPa] |
Elongation in 2 in. [50 mm] min, %A,B |
---|---|---|---|
Class 1 | 105–125 [725–860] |
85 [585] | 14 |
Class 2 | 115–135 [795–930] |
100 [690] | 14 |
Class 3 | 90–115 [620–795] | 70 [485] | 16 |