Grade SKD 8
Corresponding Standard JIS G 4404-2022
Alloy Tool Steels
Classification Tool Steel
SKD 8 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo W V Co
Minimum Value 0.35 0.15 0.2 - - 4 0.3 3.8 1.7 4
Maximum Value 0.45 0.5 0.5 0.03 0.02 4.7 0.5 4.5 2.1 4.5
SKD 8 Mechanical Properties
condition Heat Treatment or Condition
Hardness
HBW
Rolled or Forged Products Annealing ≤262
Rolled or Forged Products Quenching and Tempering HV
484
1 Approximate Comparison Table Hot-Work Tool Steels
Japan European Standard
JIS EN Numerical Grade
SKD8 38CrCoWV18-17-17 1.2661
2 Approximate Comparison Table Hot-Work Tool Steels
Japan International Organization for Standardization
JIS ISO
SKD 8 38CrCoWV18-17-17
SKD8 Corresponding Standards(Same grade name, different standards)

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