General Information:
Material GroupP - Steel
Sub-GroupTool Steel
Tensile Strength850-900 [N/mm^2]
Machinability Range23% - 55%

Equivalent International Designations for Steel D4(D6)

StandardName
saeD4(D6)
wnr1.2436
dinX210CrW12
bsBD6
ss2312
anforZ200CD12
uniX215CrW121KU
unfX210CrW12
js1SKD2


Chemical Composition for Steel D4(D6)

Sorry, Not Availble for this Material


Cutting Speeds Recomendations for Tool Steel and High Alloy Steel

* Click on the speeds below for higher precision in specific conditions!

ApplicationVc (m/min)Vc (SFM)
Turning100-240330-790
Milling65-150210-490
Parting50-115160-380
Grooving55-135180-440
Drilling40-95130-310

Important! The speed estimation is given for an ideal situation:

  • Most suitable carbide grade
  • Stable tool clamping
  • Stable workpiece clamping
  • Good quality raw material
  • A short overhang of the cutting tool.
  • Nominal hardness of the material.
  • etc.
Click on the speeds in the above table to get better precision for specific parameters
Or use our Speed and Feed Calculator



Recommended Carbide Grades for Steel D4(D6)

* If you don't understand the below table? Read This Explanation to make the most out of it!

Grade for Turning

Grade for Parting Off

Grade for Grooving

Grade for Milling (Indexable)

Recommended Insert Cutting Edge Geometry for Steel D4(D6)

Honing Siz0.05-0.08 mm / 0.002-0.003"
Rake Angl11° -13°
Land AnglPositive
Land Widt0.20-0.30 mm / 0.008-0.012"

Learn more about carbide inserts Cutting-Edge Geometry Parameters.

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