Japan Datong DH2F Pre-hardened hot work die steel production in Japan Daido Steel Co., Ltd. is a pre-DH2F hard hot work die steel factory pre-hardened to HRC37-42.DH 2F meet the needs of rapid tooling. Often used in various zinc die casting magnesium high hard plastic mold, such as: mobile phone housing mold engine auto lamp mold tooling. features: excellent machinability, easy processing and carved mold. Expected to reduce mold cycle, reduce costs Datong grade chemical composition CSiMnCrNiMoAlCuSDH2F0.380.60.65.2-1.2V: 0.6-- Edit this section | Back to the top of the mechanical properties of the pre-hard hrc40-44 4. Features: Pre-hardened to 37 - have been 41hrc (surface hardness) edit this section | Back to top heat treatment heat treatment conditions: forging temperature ° C ° C heat treatment hardness abnormal point ° C annealing quenching and tempering annealing HB quenching and tempering HRC Ac Ar Ms1100 ~ 850 840 ~ 870 air-cooled 1000 600 ~ 680 ~ 1050 air-cooled air-cooled ≤ 229 40 845 ~ 910 280 (Austenitising) 1030 ° C factory condition: HRC37-42
