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42CrMo ALLOY STEEL TUBE
42CrMo chemical composition and mechanical properties:
chemical composition:
Carbon C
0.38～0.45%
Silicon Si
0.17～0.37%
Manganese Mn
0.50～0.80%
Sulfur S
Allow residual content ≤0.035%
Phosphorus P
allowable residual content ≤0.035%
Chromium Cr
0.90～1.20%
Nickel Ni
allowable residual content ≤0.30%
Copper Cu
allowable residual content ≤0.30%
Mo
0.15～0.25%
Mechanical properties:
Hardness: Annealing, 255～207HB, indentation diameter 3.8～4.2mm; Quenching, ≥60HRC cr12mov The hardenability, hardness, strength and toughness after quenching and tempering are higher than CR12, and the work with a diameter of 300-400mm or less can be completed Hardenable, small quenching deformation, but poor high temperature plasticity. cr12mov plates are mostly used to manufacture composite molds and tools with large cross-sections, complex shapes and heavy workloads.
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