Machining DataSheet for

General Information:
Material GroupS - Superalloys (Heat resistant and Titanium)
Sub-GroupSuperalloy
Tensile Strength [N/mm^2]
Machinability Range6% - 19%

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Equivalent International Designations for Material M 203

Standard Name

Chemical Composition for Material M 203

Element Amount
Cobalt (Co)38%
Nickel (Ni)24.5%
Chromium (Cr)19.5%
Tungsten (W)12%
Carbon (C)2.2%
Iron (Fe)1%
Silicon (Si)1.0%
Manganese (Mn)0.8%
Aluminum (Al)0.7%
Titanium (Ti)0.1%

Cutting Speeds Recomendations for Heat resistant Ni or Co Based

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

ApplicationVc (m/min)Vc (SFM)
Turning25-7580-250
Milling20-5570-180
Parting15-5050-160
Grooving20-6570-210
Drilling20-6570-210

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 Material M 203

* If you do nott understand the below table? Read This Explanation to make the most out of it!

Grade for Turning

Grade for Milling (Indexable)

Grade for Parting Off