414 / 416 , Ground Floor, Maulana Azad Road,

Grant Road (East), Mumbai 400 004



Material Notes:

Used in high speed tool and cutting applications such as drills, milling processes, reamers, etc. Mo content promotes toughness, but requires more precise hardening conditions and caution about overheating.

Component Elements Properties
Metric English Comments
Carbon, C 1.05 - 1.15 % 1.05 - 1.15 %
Chromium, Cr 3.5 - 4.25 % 3.5 - 4.25 %
Cobalt, Co 7.75 - 8.75 % 7.75 - 8.75 %
Copper, Cu <= 0.25 % <= 0.25 %
Iron, Fe 70.99 - 76.3 % 70.99 - 76.3 %
Manganese, Mn 0.15 - 0.40 % 0.15 - 0.40 %
Molybdenum, Mo 9.0 - 10 % 9.0 - 10 %
Nickel, Ni <= 0.30 % <= 0.30 %
Phosphorous, P <= 0.030 % <= 0.030 %
Silicon, Si 0.15 - 0.65 % 0.15 - 0.65 %
Sulfur, S <= 0.030 % <= 0.030 %
Tungsten, W 1.15 - 1.85 % 1.15 - 1.85 %
Vanadium, V 0.95 - 1.35 % 0.95 - 1.35 %