42 cr mo 4
42 CrMo4 stands as a premium low-alloy steel grade that delivers exceptional mechanical properties through its carefully engineered chemical composition. This versatile steel contains chromium and molybdenum as primary alloying elements, creating a material that excels in demanding industrial applications where strength, durability, and reliability are paramount. The steel grade follows European EN 10083 standards, ensuring consistent quality and performance across manufacturing processes. Its chemical composition typically includes carbon content ranging from 0.38 to 0.45 percent, chromium between 0.90 to 1.20 percent, and molybdenum from 0.15 to 0.30 percent, which contributes to its superior hardenability and toughness characteristics. The 42 CrMo4 material exhibits remarkable tensile strength properties, often achieving values between 1000 to 1200 MPa when properly heat treated. This steel grade demonstrates excellent fatigue resistance, making it ideal for components subjected to cyclic loading conditions. Manufacturing processes benefit from the steel's good machinability in the annealed condition, allowing for efficient production while maintaining dimensional accuracy. Heat treatment capabilities of 42 CrMo4 enable precise control over final mechanical properties through quenching and tempering operations. The material responds well to surface hardening treatments, including induction hardening and nitriding, which further enhance wear resistance for specific applications. Industries rely on 42 CrMo4 for critical components in automotive, aerospace, and heavy machinery sectors where component failure is not acceptable. The steel's balanced composition provides optimal weldability when proper procedures are followed, expanding its application possibilities in fabricated structures and assemblies.