Limiting Chemical Composition, % by Weight
Carbon ........................................................................0.05-0.15
Chromium ...................................................................20.5-23.0
Cobalt ..............................................................................0.5-2.5
Iron ..............................................................................17.0-20.0
Manganese ...................................................................1.0 max.
Molybenum ...................................................................8.0-10.0
Nickel............................................................................Balance
Silicon ...........................................................................1.0 max.
Tungsten ..........................................................................0.2-1.0
Phosphorus ................................................................0.04 max.
Sulfur ...........................................................................0.03 max