Superior Strength Special Alloy Steel DIN 1.7225 4140 Scm440 42CrMo4 Q + T Heat Treatment ► Chemical Composition(%): C Si Mn Cr P S Mo 0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.20 ≤0.035 ≤0.035 0.15-0.25 ► ...
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