9Mn2V/O2/90MnCrV8(1.2842)/O2 round bar flat bar hot-work die steel special steel tool steel 1.2842 Product details information C Si Mn Cr V P S 0.85-0.95 0.10-0.40 1.90-2.10 0.20-0.50 0.05-0.20 ≤0.030 ...
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