42CrMo seamless steel pipe technology specification

42CrMo Seamless steel pipe is an ultra-high-strength steel with high strength and toughness, and good hardenability.

42CrMo Seamless steel pipe technology specification
Hot Working Specifications
The heating temperature is 1150 ~ 1200°C, the starting temperature is 1130 ~ 1180°C, the end temperature is > 850°C, and when φ> 50mm, slow cooling.
Normalizing Specification
The normalizing temperature is 850~900°C, and the oven is air-cooled.
High temperature tempering specification
The tempering temperature is 680~700°C, and the furnace is air-cooled.
Quenching and Tempering Specifications
Preheating temperature 680~700°C, quenching temperature 840~880°C, oil cooling, tempering temperature 580°C, water cooling or oil cooling, hardness ≤217HBW.
Specification for sub-temperature quenching and toughening treatment
Quenching temperature 900°C, tempering temperature 560°C, hardness (37±1) HRC
Induction hardening and tempering specification
The quenching temperature is 900°C, the tempering temperature is 150~180°C, and the hardness is 54~60HRC.

42CrMo Seamless steel pipe has no obvious tempering brittleness, small deformation during quenching, high fatigue limit and multiple impact resistance after quenching and tempering treatment, good low temperature impact toughness, high creep strength and lasting strength at high temperature . If you need, please send an email to our mailbox.


FROM:http://boilersteelpipe.com/pro/smls/42crmo-seamless-steel-pipe-technology-specification.html

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