DIN/EN 45CrMoV6-7 1.7737 alloy steel

45CrMoV6-7 steel is an alloy spring steel classified as a high-strength and toughness material in the German DIN/EN standard system, with a grade corresponding to 1.7737. The synergistic effect of alloying elements such as chromium (Cr), molybdenum (Mo), and vanadium (V) in 45CrMoV6-7 alloy steel achieves high strength, high fatigue limit, and good hardenability, making it suitable for manufacturing spring components subject to high loads and impact. 45CrMoV6-7 alloy structural steel is classified as a cross between hot work die steel and spring steel, combining high elasticity and wear resistance, making it particularly suitable for high-temperature operating conditions (≤300°C).

Chemical Composition of 45CrMoV6-7 Alloy Steel

The chemical makeup of 45CrMoV6-7 alloy structural steel ensures its superior performance.

Mechanical Properties of 45CrMoV6-7 Alloy Steel

The mechanical properties of 45CrMoV6-7 alloy steel make it suitable for high-stress environments.

Equivalent Grades of 45CrMoV6-7 Alloy Steel

45CrMoV6-7 alloy steel can be cross-referenced with other international standards, making it versatile for global applications.

Applications of 45CrMoV6-7 Alloy Steel

Automotive: High-stress springs (such as valve springs and clutch diaphragms) and suspension components;
Mechanical Industry: Shock absorber valve plates, air conditioner compressor valve plates, and precision stamped springs;
Energy Equipment: Boiler safety valve springs and turbine speed regulating springs (resistant to temperatures up to 300°C);
Tools: Punching dies and wear-resistant cutting tools (leveraging the wear resistance of high chromium-molybdenum);
Specialty Hardware: Textile machinery needles, printing scrapers, and high-precision endless belt knives.