Heat resistant W403 mould steel Austrian W403 mold Steel is Hot Work Die Casting Mould Steel: In the injection molding industry, W403 is also one of the commonly used mold steel, widely used in the manufacture of injection molds, hot runner systems, cooling systems, etc. W403 is mainly used for automotive parts EDM mold, thin plate thickness of no more than 2MM, efficient drop mold, etc. Thermosetting resin molding mold, deep drawing mold, cold extrusion mold. Bohler W403 VMR from Austria is an electroslag remelting die steel used in aluminum die-casting dies, hot extrusion and stamping tools and cores, die forging hammer forging dies, press forging dies, high speed precision forging dies and plastic compression dies. It has high heat resistance, excellent all-round toughness and ductility, high thermal fatigue and wear resistance, good nitriding, good polishing, good dimensional stability, good hardenability, better isotropy than conventional molten steel and other excellent characte…