30CrNiMo8 can undergo heat treatment such as normalizing, tempering, quenching, etc. It is used to manufacture chains, screws, gears, arms, rollers, and other components.
Mechanical components. 30CrNiMo8 is applied in fields such as shipbuilding, aircraft industry, mechanical engineering, petroleum industry, and steel industry.
The typical chemical composition of 30Cr2Ni2Mo is: carbon (C) 0.26-0.33%, chromium (Cr) 1.50-1.80%, nickel (Ni) 1.50-1.80%, molybdenum (Mo) 0.20-0.30%, silicon (Si) 0.17-0.37%, manganese (Mn) 0.40-0.70%, phosphorus (P) ≤ 0.025%, sulfur (S) ≤ 0.025%. This alloy design endows it with the following key characteristics:
High strength and toughness: After quenching and tempering treatment, the tensile strength can reach 1000-1200MPa, while maintaining good impact toughness
Excellent hardenability: The composite effect of nickel chromium molybdenum results in a critical diameter of over 150mm
Fatigue performance: High cycle fatigue strength can reach 550-650MPa
Low temperature toughness: -40 ℃ impact energy still maintains a high level
