Machining DataSheet for

General Information:
Material GroupS - Superalloys (Heat resistant and Titanium)
Sub-GroupSuperalloy
Hardness107.0 HB
Tensile Strength460 [N/mm^2]
Machinability Range25% - 50%

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Equivalent International Designations for Material Invar 36

Standard Name
saeASTM F1684
unsUNS K93600 K93603

Chemical Composition for Material Invar 36

Element Amount
Iron (Fe)62%
Nickel (Ni)36%
Cobalt (Co)0.4%
Manganese (Mn)0.3%
Silicon (Si)0.15%
Aluminum (Al)0.03%
Carbon (C)0.008%
Molybdenum (Mo)0%
Sulfur (S)0.001%

Cutting Speeds Recomendations for Heat resistant Fe Based

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

ApplicationVc (m/min)Vc (SFM)
Turning100-200330-660
Milling75-150250-490
Parting65-125210-410
Grooving90-175300-570
Drilling90-175300-570

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 Invar 36

* 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 Invar 36

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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