414 / 416 , Ground Floor, Maulana Azad Road,

Grant Road (East), Mumbai 400 004




Supreme Steel is a leading Die steels Importers,Die steels Importers in India,Die steels Importers in mumbai.

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 0.82 - 0.88 % 0.82 - 0.88 %
Chromium, Cr 3.75 - 4.0 % 3.75 - 4.0 %
Cobalt, Co 4.5 - 5.5 % 4.5 - 5.5 %
Copper, Cu <= 0.25 % <= 0.25 %
Iron, Fe 73.71 - 78.83 % 73.71 - 78.83 %
Manganese, Mn 0.15 - 0.40 % 0.15 - 0.40 %
Molybdenum, Mo 4.5 - 5.5 % 4.5 - 5.5 %
Nickel, Ni <= 0.30 % <= 0.30 %
Phosphorous, P <= 0.030 % <= 0.030 %
Silicon, Si 0.20 - 0.45 % 0.20 - 0.45 %
Sulfur, S <= 0.030 % <= 0.030 %
Tungsten, W 5.5 - 6.75 % 5.5 - 6.75 %
Vanadium, V 1.75 - 2.2 % 1.75 - 2.2 %




Compared grades
China Germany USA Japan Korea
GB DIN ASTM JIS KS