L6

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.

Chemical Composition

CMNSICRNIV
0.70.650.30.81.60.15

Standards

DB6L61.2714 W500AFNOR 55NCDVV755NiCrMoV

Properties

Coefficient of thermal expansionat °C20-10020-20020-30020-40020-50020-600
10-6 m/(m*K)12.113.113.213.514.114.3
Thermal Conductivity °C20350700
W/(m*K)353936

Applications

  1. Press Dies
  2. Extrusion Dies
  3. Retainer Plates
  4. Armoured Trim Dies
  5. Hot-shear Blades
  6. Tool Holders
  7. Cold Forming Tools
Soft annealing °CCoolingHardness HB
650-710Furnacemax. 240
840-880Oil57
860-900Air55
Tempering °C after quenching100200300400450500550600650
in Oil - HRC565452494746433834
in Air - HRC545250474543403632