Chemical Composition
Carbon
Manganese
0.70 - 1.00%
Silicon
0.20 - 0.80%
Phosphorus
0.04% Max
Sulfur
0.045% Max
Chromium
0.70 - 0.90%
Nickel
1.65 - 2.00%
Molybdenum
0.20 - 0.30%
Tungsten
0.10% Max
Copper
0.50% Max
Residual Elements
1.00% Max
Physical Properties
Yield Strength
145 ksi Min
Tensile Strength
180 ksi Min
Elongation at 2 in
5% Min
Resources
ASTM Standard
