SKH59 high-speed steel is high carbon cobalt-molybdenum super-hard high-speed tool steel, high hardness up to 70HRC, hot hardness, high temperature, high hardness, easy grinding. As SKH59 speed tool steel grinding performance can be good, so can be used to manufacture a variety of high-precision complex tools.
SKH59 high-speed steel
SKH59 supply high-speed steel Hardness: Annealed ≤ HB280; cold ≤ HB320
SKH59 high-speed steel chemical composition:
C carbon 1.05-1.15
Si Si ≤ 0.70
Cr chromium 3.50-4.50
Mn Mn ≤ 0.40
Mo Mo 9.0-10.0
Co Co 7.75-8.50
W tungsten 1.20-1.90
Alum 1.20-1.90 V
P P ≤ 0.030
S sulfur ≤ 0.030
