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Hot working specifications for EN10083-3 42CrMo4 steel plates steel plate

EN10083-3 42CrMo4 steel belongs to ultra high strength steel. 42CrMo4 steel plates have high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering, and good impact toughness at low temperature. Meanwhile, EN10083-3 42CrMo4 has high creep strength and rupture strength at high temperature. After quenching and tempering, surface quenching is usually used as a heat treatment plan. EN10083-3 42CrMo4 steel plates are suitable for manufacturing large and medium moulds which require certain strength and toughness.

EN10083-3 42CrMo4 steel plates have strict hot working specifications:
1. heating temperature 1150 ~1200 degrees, starting temperature 1130 ~1180 degrees, termination temperature > 850 degrees, φ> 50mm, slow cooling.
2. normalizing specification: normalizing temperature 850~900 degree, air cooling.
3. high temperature tempering specification: tempering temperature 680~700 degrees, air cooling.
4. specification for quenching and tempering: preheating temperature 680 ~700 degree, quenching temperature 840~880 degree, oil cooling, tempering temperature 580 degree, water cooling or oil cooling, hardness less than 217HBW.
5. specification for subcritical hardening and toughening treatment: quenching temperature 900 degrees, tempering temperature 560 degrees, hardness (37 + 1) HRC. 6. induction quenching and tempering specification: quenching temperature 900 degree, tempering temperature 150~180 degree, hardness 54 ~60HRC.

For more information about EN10083-3 42CrMo4 steel plates, please contact BBN steel team at any time.

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