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Lowering tension

In our selected range you can find the right material for virtually any application.

1.2714 Steel for through hardening

Designation

DIN:55 NiCrMoV 7
AFNOR:55 NCDV 7
UNI:-
AISI:L6

Chemical composition:

C0.56
Cr1.10
Mo0.50
Ni1.70
V0.10

Strength:

max. 250 HB
(≈ max. 850 N/mm²)

Thermal conductivity at 100 °C:

36 W/m K


Character:

steel for through hardening, with high temperature resistance, through hardenability and toughness

Application:

extrusion dies, hot-forging tools, dies for processing tin, lead and zinc alloys


Treatment by

Polishing:
technical polishing is 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

To the mould making overview To the die making overview

Available in the web shop as:
Data sheet 1.2714

Open PDF

Material grades brochure

Material grades brochure

Material grades poster

Material grades poster

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