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Lowering tension

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

1.2767 Steel for through hardening


DIN:45 NiCrMo 16
AFNOR:45 NCD 16 
UNI:40 NiCrMoV 16 KU
AISI:≈ 6F7

Chemical composition:



≈ 830 N/mm²

Thermal conductivity at 100 °C:

30 W/m K


Nickel alloyed steel for through hardening, with moderate machinability; very high resistance against bending and high compressive strength; very high toughness and good through hardenability, also with bigger sections.


high-performance cavity plates and inserts for the processing of plastics with high surface requirements (mirror finish); stamping, forming and bending dies for particularly high pressure and bending stresses

Treatment by

best metallurgical properties for mirror finish

is possible:

highly suitable:


not usual:


Hard chroming:
particularly increases the steel's wear resistance and corrosion resistance


Heat treatment:

Soft annealing:
610 to 650 °C for about 2 to 5 hours slow controlled cooling of 10 to 20 °C per hour to about 600 °C further cooling in air, max. 260 HB

840 to 870 °C
Quenching in oil/hot bath/air
Obtainable hardness: 53-58 HRC

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

Annealing graph:

Technical tip:
  • To avoid unwanted warping during plastic injection, the tempering temperature after hardening must exceed the operating temperature by 50 °C.

    operating temperature is 200 °C
    tempering at 250 °C = 52 HRC

To the mould making overview To the die making overview

Available in the web shop as:
Data sheet 1.2767

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Material grades brochure

Material grades brochure

Material grades poster

Material grades poster

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