AISI L-6

Description

1.2714 Tool Steel is a versatile, oil-hardening tool steel that is characterized by very good toughness. This grade is suitable for use as tools, dies, and machine parts, which require a good combination of hardness and toughness. The relatively high nickel content results in an alloy with greater impact toughness compared to the other common oil-hardening grades. Tough die steel with high tempering resistance and good through-hardening properties. This grade is usually supplied in annealed condition or quenched and tempered to a working hardness of 370 to 410 HB (round) or 355 to 400 HB.

Equivalent Grades

American German Japanese China Poland
  (W.Nr) (DIN)      
AISI L-6 1.271456NiCrMoV7---

Chemical Composition (AISI L-6)

  C Si Mn P S Cr Mo V W Co Ni
AISI L-6 0.70.30.65--0.8-0.15--1.6

Properties

Coefficient of    thermal expansionat °C

20-100

20-200

20-300

20-400

20-500

20-600

10-6 m/(m*K)

12.1

13.1

13.2

13.5

14.1

14.3

Thermal Conductivity    °C

20

350

700

W/(m*K)

35

39

36

Application

  • Press Dies
  • Extrusion Dies
  • Retainer Plates
  • Armoured Trim Dies
  • Hot-shear Blades
  • Tool Holders
  • Cold Forming Tools



Heat Treatment

Soft annealing °C

Cooling

Hardness HB

650-710

Furnace

max. 240

840-880

Oil

57

860-900

Air

55

Tempering °C after    quenching

100

200

300

400

450

500

550

600

650

in Oil - HRC

56

54

52

49

47

46

43

38

34

in Air - HRC

54

52

50

47

45

43

40

36

32

AISI L-6

Tempreing Curve: