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

Equivalent International Designations for Material L 251

StandardName


Chemical Composition for Material L 251

ElementAmount
Cobalt (Co)55.6%
Chromium (Cr)19%
Tungsten (W)14%
Nickel (Ni)10%
Iron (Fe)1%
Titanium (Ti)0.4%

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 L 251

* 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 Material L 251

Honing Siz0.02-0.05 mm / 0.001-0.002"
Rake Angl13° -18°
Land AnglNeutral
Land Widt0.10-0.20 mm / 0.004-0.008"
Ground InserRecommended

Learn more about carbide inserts Cutting-Edge Geometry Parameters.

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