This is more valuable for the mechanical fatigue resistance and thermal stress fatigue resistance of dies such as die casting dies, forging dies and extrusion dies. Therefore, compared with the ordinary SKD6 1, the die hardness using DHAI can provide 1-2 HRC without sacrificing toughness. High hardness can slow down the occurrence of hot cracking and improve the life of the die.
Steel characteristics
Excellent thermal shock resistance and crack resistance.
High and high temperature strength
Regardless of size, high toughness and ductility and good isotropy.
Excellent machinability and polishing performance.
Excellent hardenability
Good dimensional stability during heat treatment.
Factory conditions
Hemoglobin 180
chemical composition
C: 0.38
Cr :5.3
Manganese: 0.4
Si : 1.0
Mo : 1.3
Five: 0.9
Main applications
Die casting dies, inserts, cores, cores, gates, nozzles, thimbles (nitrided), plungers and sleeves.
Extrusion die:
Mold core, mold base, washer, bushing, ejector pin and bearing seat.
Hot forging die:
Aluminum-magnesium alloy, copper alloy, steel
Plastic mold:
Injection mold, pressure transmission mold
Other uses:
Stamping iron shears, hot shears and die rings for thick steel plates.
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