414 / 416 , Ground Floor, Maulana Azad Road,

Grant Road (East), Mumbai 400 004



Supreme Steel Group is a leading HSS Importers, HSS Importers in India, HSS Importers in mumbai, Company located in mumbai,india.

Material Notes:


Chromium-tungsten tool steel that provides excellent service in both hot and cold work shock applications. Has good wear resistance and high hardness value.



Physical Properties
Metric English Comments
Density 7.83 g/cc 0.283 lb/in³


Mechanical Properties
Metric English Comments
Hardness, Knoop 682 682 Converted from Rockwell C Hardness.
Hardness, Rockwell C 58 58
Hardness, Vickers 661 661 Converted from Rockwell C Hardness.
Tensile Strength, Ultimate 2310 MPa 335000 psi
Tensile Strength, Yield 1750 MPa 254000 psi
Elongation at Break 9.0 % 9.0 %
Bulk Modulus 160 GPa 23200 ksi Typical for steel
Shear Modulus 80.0 GPa 11600 ksi Typical for steel


Thermal Properties
Metric English Comments
CTE, linear 12.4 µm/m-°C 6.89 µin/in-°F


Processing Properties
Metric English Comments
205 - 650 °C 401 - 1200 °F Tempering Temperature
900 - 955 °C 1650 - 1750 °F Hardening Temperature
Annealing Temperature 790 - 815 °C 1450 - 1500 °F


Component Elements Properties
Metric English Comments
Carbon, C 0.40 - 0.55 % 0.40 - 0.55 %
Chromium, Cr 1.4 % 1.4 %
Iron, Fe 94 % 94 %
Manganese, Mn 0.25 % 0.25 %
Molybdenum, Mo <= 0.50 % <= 0.50 %
Phosphorous, P <= 0.030 % <= 0.030 %
Silicon, Si <= 0.68 % <= 0.68 %
Sulfur, S <= 0.030 % <= 0.030 %
Tungsten, W <= 2.25 % <= 2.25 %
Vanadium, V <= .23 % <= .23 %