Machining DataSheet for

General Information:
Material GroupS - Superalloys (Heat resistant and Titanium)
Sub-GroupSuperalloy
Hardness80.0 HRB
Tensile Strength510 [N/mm^2]
Machinability Range15% - 45%

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Equivalent International Designations for Material Incoloy 825

Standard Name
saeASME SB163
wnr2.4858
dinNiCr21Mo
unsUNS N08825
bs3072.76
anforNC21FeDU

Chemical Composition for Material Incoloy 825

Element Amount
Nickel (Ni)42%
Iron (Fe)29.5%
Chromium (Cr)21.5%
Tungsten (W)3%
Titanium (Ti)0.9%
Manganese (Mn)0.65%
Silicon (Si)0.5%
Aluminum (Al)0.2%
Carbon (C)0.03%

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)
Turning60-180200-590
Milling45-135150-440
Parting40-115130-380
Grooving55-160180-520
Drilling55-160180-520

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 Incoloy 825

* If you do nott 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 Incoloy 825

Honing Size:0.02-0.05 mm / 0.001-0.002"
Rake Angle:13° -18°
Land Angle:Neutral
Land Width:0.10-0.20 mm / 0.004-0.008"
Ground Insert:Recommended

Learn more about carbide inserts Cutting-Edge Geometry Parameters.

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