CHEMICAL COMPOSITION
|
Carbon
|
0.20% Max
|
|
Manganese
|
0.40 – 0.70%
|
|
Silicon
|
0.75% Max
|
|
Phosphorus
|
0.04% Max
|
|
Sulfur
|
0.045% Max
|
|
Nickel
|
0.50% Max
|
|
Chromium
|
4.00 – 6.50%
|
|
Molybdenum
|
0.45 – 0.65%
|
|
Copper
|
0.50% Max
|
|
Tungsten
|
0.10% Max
|
|
Total of residual elements
|
1.00% Max
|
PHYSICAL PROPERTIES
| Tensile Strength | 90,000 – 115,000 PSI |
| Yield Strength | 60,000 PSI Min |
| Elongation at 2in. | 18.0% Min |
| Reduction of area | 35.0% Min |