Steel Glossary
1.2436 D 6

AISI D6

Chemical Composition %
C Si Mn Cr W
max. 2.3 0.4 0.6 13.0 0.8
min. 2.0 0.1 0.3 11.0 0.6

Cold work tool steel used for manufacturing cutting, bending, pressing, and embossing tools, as well as stamps, bending rails, and knives.

Due to its high carbon content, 1.2436 is particularly suitable for wear-resistant applications.

1.2436 is a ledeburitic 12% chromium steel that can be hardened with relatively simple methods.

It generally offers good machinability, but for improved machinability in the hardened state, consider using 1.2379, TENASTEEL, or Daido DCMX.

You can obtain this material from us as precision flat steel (standard and custom dimensions) and as raw material cut-to-size.

We also offer 1.2436 customized according to your specifications as a finished machined drawing part.

Tempering Diagramm
Hardening Temperature: 950°C, Cross-Sectional Sample: Square 20 mm
Tempering diagram for 1.2436-x210CrW12 at hardening temperature 950°C
Heat Treatment Schedule
Heat treatment schedule for 1.2436-x210CrW12
Continuous Cooling Transformation Diagram
Austenitization Temperature: 980°C, Holding Time: 30 Minutes
TTT diagram for continuous cooling of 1.2436-x210CrW12
  • ○ Hardness in HV
  • 3 . . . 100 Volume Fraction in %
  • 0.9 . . . 20.0 Cooling Parameter,
    i.e., Cooling Time from 800°C to 500°C in s x 10-2
  • 2K/mins ......Cooling Rate
    in K/min in the Range of 800–500°C
  • Mk .....Grain Boundary Martensite
  • B........Bainite
Microstructure Phase Diagram

Cooling Parameter λ

Phase diagram of 1.2436-x210CrW12
  • Lk .... Ledeburite Carbide
  • B ...... Bainite
  • - Water Cooling
  • - - - Oil Quenching
  • - • - Air Cooling
  • 1 ...... Workpiece Edge
  • 2 ...... Workpiece Center
  • 3 ...... Jominy Probe: Distance from the End Face
Isothermal Time Temperature Transformation Diagram
Austenitization Temperature: 980°C, Holding Time: 30 Minutes
Isothermal TTT diagram for 1.2436-x210CrW12
Dependency of Core Hardness and Effective Hardening Depth on Workpiece Diameter.
Core hardness and hardening depth for 1.2436-x210CrW12
  • Quenching Medium:
    - Oil
    - - - Air
Material info

Downloads

1.2436 D 6

Cold work tool steel for the manufacture of cutting, bending and pressing tools and embossing dies as well as folding bars and knives

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