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What is the application of 42CrMo alloy steel?

What is the application of 42CrMo alloy steel?

42CrMo alloy steel has 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. Generally used after quenching and tempering, it can replace quenched and tempered steel with higher nickel content.
 
42CrMo steel is used to manufacture important parts with higher requirements or larger cross-sectional dimensions than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, gearbox gears, engine cylinders, and extremely loaded connections Rod, spring clip. 42CrMo steel can also be used for drill pipe joints and fishing tools for 1200~2000m deep oil wells. The steel is also suitable for manufacturing large and medium-sized plastic molds requiring certain strength and toughness.

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