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Application of 42CrMo Alloy Steel

Shandong Xinhe International Trade Co., Ltd2023-11-10

42CrMo steel belongs to alloy structural steel in terms of material classification. It has good mechanical properties and processability and is widely used. There are mainly two types of materials: plate and round bar. Its comprehensive performance is better than 40cr and has been recognized by the industry. .



Chemical composition of 42CrMo:

C: 0.38~0.45%

Si: 0.17~0.37%

Mn: 0.50~0.80%

S: ≤0.035%

P: ≤0.035%

Cr: 0.90~1.20%

Mo: 0.15~0.25%


42CrMo steel is an 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. 42CrMo steel is suitable for manufacturing large and medium-sized plastic molds that require certain strength and toughness.



42CrMo steel has become an ideal choice for manufacturing deep oil well drill pipe joints due to its high strength, toughness and hardenability. Drill pipe joints are subjected to huge tensile and torsional forces during oil drilling and therefore require excellent strength and durability. The high strength of 42CrMo steel can withstand these extreme working conditions, and its hardenability ensures the hardness and wear resistance of the joint surface. In addition, 42CrMo steel has good low-temperature impact toughness and can adapt to the extreme temperature conditions of deep well environments.


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