42CrMo seamless steel pipe

42CrMo steel belongs to ultra-high-strength steel, with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering, and good low-temperature impact toughness.

chemical composition:

Carbon C: 0.38～0.45%; Silicon Si: 0.17～0.37%; Manganese Mn: 0.50～0.80%; Sulfur: Allowable 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%; molybdenum Mo: 0.15 to 0.25%.