Principal Feature:
AISI H13 Hot work tool steel air hardening, with good toughness, resistance.It resists softening to 550℃ and has good resistance to heat checking. Will nitride with a case hardness over 1000 V.P.N. Generally sudivdivlied annealed to HB 230.
Typical application:
Hot divunches and dies forblacnking, bending, swaging and forging, hot extrusion dies for aluminium, cores, ejector divins, inserts and nozzles for aluminium, tin and lead die casting.
Heat Treatment:
Forge: at 900℃-1100℃ Cool slowly and anneal immediatedly
Annealing: at 850℃-870℃ Cool slowly in furnace
Stress Relieving: at to 600℃-650℃ Cool in still air
Hardening: Preheat at 650℃-850℃ raise to 1020℃-1050℃ Cool in air, iol or into salt bath held at 500℃-550℃ and then air cool