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A die casting die and a Cr-Mo-V steel therefore having an ultimate strength of 190,000 psi, a yield strength of 160,000, a tempering response of 400 BHN at a tempering temperature of 1150 DEG F and final gas contents of N-70 ppm, 0-30 ppm and H - about 1.0 ppm following a double vacuum melting proce...

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Bibliographische Detailangaben
Hauptverfasser:	BRADA, GUY A, UNDERYS, ALGIRDAS A
Format:	Patent
Sprache:	ger
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A die casting die and a Cr-Mo-V steel therefore having an ultimate strength of 190,000 psi, a yield strength of 160,000, a tempering response of 400 BHN at a tempering temperature of 1150 DEG F and final gas contents of N-70 ppm, 0-30 ppm and H - about 1.0 ppm following a double vacuum melting process which includes vacuum arc degassing and vacuum arc remelt followed by annealing and heating in two stages to 1885F, soaking, rapid quenching, tempering twice and stress tempering.