Chemical Composition
Carbon
Manganese
0.40 - 0.70%
Silicon
0.60% Max
Phosphorus
0.035% Max
Sulfur
0.035% Max
Chromium
2.00 - 2.75%
Nickel
0.50% Max
Molybdenum
0.90 - 1.20%
Tungsten
0.10% Max
Copper
0.50% Max
Residual Elements
1.00% Max
Physical Properties
Yield Strength
40 ksi Min
Tensile Strength
70 - 95 ksi
Elongation at 2 in
20% Min
Reduction of Area
35% Min
Resources
ASTM Standard
