DIN 1.2767


Description


1.2767 is a higher carbon version of the standard 4.25% nickel oil hardening steel. It is a good quality tool steel that achieves high impact and compressive strength and is suitable for applications demanding extra wear resistance. With its characteristics of good full hardenability, good polishability and excellent toughness this cold work tool steel specification is widely used for plastic mould applications.

Equivalent Grades

American German Japanese China Poland
  (W.Nr) (DIN)      
DIN 1.2767 1.2767----

Chemical Composition (DIN 1.2767)

  C Si Mn P S Cr Mo V W Co Ni
DIN 1.2767

Properties


Coefficient of thermal expansion at °C
20 – 100

20 – 200

20 – 300
10-6 m/(m • K) Annealed
11.8

12.7

13
10-6 m/(m • K) Quenched and tempered
11.5

12

14






Thermal conductivity at °C
100
150
200
250
300
W/(m • K) Annealed
38.3
38.7
38.9
39.2
39.7
W/(m • K) Quenched and tempered
27.8
28.8
29.8
30.6
31.5


Applications

  • Cutlery dies
  • Cutting tools for thick material
  • Billet-shear blades
  • Drawing jaws
  • Massive embossing and bending tools
  • Plastic moulds
  • Reinforcements



Heat Treatment

Soft annealing °C

Cooling

Hardness HB

610 – 650

Furnace

max. 260

Stress-relief annealing °C

Cooling


approx. 600 – 650

Furnace


Hardening °C

Quenching

Hardness after quenching HRC

830-860

Air, oil or Saltbth 185-225°C

55



Tempering °C

100

200

300

400

500

600

HRC

55

53

49

45

41

37


Tempreing Curve: