5CrMnMo die steel 
 1 ● Heat treatment: 5CrMnMo recommended hardening steel specification: 3 quenching temperature / ℃ medium temperature / ℃ cooling hardness (HRC) 820 ~ 850 Oil 150 180 至 150 ~ 180 ℃ cold air after the small mold, mold immediately tempered 52 large and medium ~ 587 Notes: 1. medium-sized forging die using the upper limit of heating temperature, a small forging dies using the lower heating temperature; (2) To reduce the die stress and deformation after quenching, quenching is best cold air to 740 ~ 760 ℃ and oil cooling, cooling to about 150 ~ 180 ℃, remove and immediately annealed; 5CrMnMo recommended tempering steel specification: 8 tempering uses heating temperature / ℃ heating medium hardness (HRC) 8 to eliminate stress, stability, organization and size 9 Ⅰ mold working part of the 5 small forging dies 490 to 510 gas stove or electric 41 to 475 medium-sized forging die 520 ~ 540 38 ~ 41 8 Ⅱ forging die swallow some 9 small forging dies 600 to 620 gas stove or electric 35 to 396 medium-sized forging die 620 ~ 640 34 ~ 37 ● Features: The steel is hot work die steel, in addition to hardenability, heat fatigue, a less external, 5CrMnMo 5CrNiMo steel and steel with similar performance, slightly lower hardenability This steel suitable for the production requires a high strength and high wear resistance of various types of forging die. requires toughness is high, can be used ESR steel. ● Hardness: 44 ~ 48 ● Uses: suitable for manufacturing side ≤ 400mm medium-sized forging model that is eager to side mode