ASSAB 718HH steel is of vacuum melted chrome-nickel-molybdenum alloy steel. This steel has been quenched and backfired before leaving factory. It has following advantages:  no risk of cracking and deforming in heat treatment  no any cost for heat treatment  shorten the period of die making  reduce die’s cost (example: no rectifying and deforming)  easy to correct die  Nitrogenized treatment and flame-hardening treatment is allowed to increase side hardness and wear resistance.
Application:  large long-life plastic injection dies such as household electric apparatus, computer crust and plastic products dies of high cleanness on surface;  As is high in hardness, it is used as slide rod for plastic die, compress-brake dies and structure parts. (Flame hardening or nitrogenized treatment is available on demand.)
Characteristics: good properties of polishing and machining, high purit
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