CHEMICAL COMPOSITION
|
Carbon
|
0.05 – 0.20%
|
|
Manganese
|
0.50 – 0.80%
|
|
Silicon
|
0.60% Max
|
|
Phosphorus
|
0.035% Max
|
|
Sulfur
|
0.035% Max
|
|
Nickel
|
0.50% Max
|
|
Chromium
|
1.00 – 1.50%
|
|
Molybdenum
|
0.45 – 0.65%
|
|
Copper
|
0.50% Max
|
|
Tungsten
|
0.10% Max
|
|
Total of residual elements
|
1.00% Max
|
PHYSICAL PROPERTIES
| Tensile Strength | 70,000 – 95,000 PSI |
| Yield Strength | 40,000 PSI Min |
| Elongation at 2in. | 20% Min |
| Reduction of area | 35% Min |