1.2714 HH Steel for through hardening

Designation

Chemical composition:

Strength:

40 - 43 HRC
(≈ 1250 - 1400 N/mm²)

Thermal conductivity at 100 °C:

36 W/m K

Character:

steel for through-hardening with good heat resistance, hardenability and toughness

Application:

Inserts, cores and slides for injection moulds

Treatment by

Polishing:
 technical polishing possible

is possible:
EDM, nitriding, etching and hard chroming

Heat treatment:

Soft annealing:
 650 to 700 °C for about 4 to 5 hours; slow controlled cooling of 10 to 20 °C per hour to about 600 °C; further cooling in air, max. 248 HB

Hardening:
 950 to 980 °C
 15 to 30 minutes keeping curing temperature
 quenching in water/oil
 obtainable hardness: 56 HRC

Tempering:
 Slow heating to tempering temperature immediately after hardening. Minimum time in furnace: 1 hour per 20 mm part thickness

Annealing graph:

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