D-3 (COLD WORK TOOL STEELS)

Main characteristics and applications

Cutting tools for sheets up to 4 mm thickness, trimming dies, blanking dies for paper and plastics, shear blades and rotary shear blades for sheet thicknesses up to 2 mm, drawing and deep-drawing tools. Woodworking tools, stone pressing tools, pressure pads and highly wear-resistant plastic moulds, profile rolls.

Comparable standards

DINW.NrAFNORAISI/ASIMJIS
X210Cr121.2080Z200C12D-3SKD1

Chemical composition (typical; in weight %)

CSiMnP (max)S (max)Cr
1.90-2.200.10-0.600.20-0.600.030.0311.0-13.0

Physical properties (reference values)

20°C100°C250°C350°C500°C600°C700°C
Coefficient of thermal expansion at °C 10-6 m/(W/mk)10.811.712.212.612.813.113.3
Thermal conductivity at °C (W/mk)16.7--20.5--24.2

Steel properties

12 % ledeburitic chromium tool steel with extreme wear resistance.

Heat treatment

TREATMENTTEMPERATUREHOLDING TIME (HT)COOLINGHARDNESS
AnnealingHeat to 800 – 840 °CMin. H.T. for 2 minute /mmFurnacemax. 250
Stress relievingHeat to 650 – 700 °CMin. H.T. for 2 minute /mmfurnace-
HardeningHeat to 930 – 960 and 950 - 980 °CMin. H.T. for 1 minute /mm oil Air (up to 30 mm thickness)64

Note

  • d3 cold work tool steel Hardening temperature HRC
°C100200300400500600
HRC636259575446


Time-temperature transformation diagram

d3 cold work tool steel temperature

Tempering diagram

d3 cold work tool steel tempering diagram