Machining DataSheet for

General Information:
Material GroupS - Superalloys (Heat resistant and Titanium)
Hardness250.0 HB
Tensile Strength810 [N/mm^2]

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Machining Material A-286

A-286 is a Iron-based heat resistant superalloy (HRSA) material with a Machinability rating of 40% and Hardness of 250 HB.

A-286 has 56% iron, 25% nickel and additional alloying elements per the below table.

Iron-based superalloys are a more economical alternative to nickel-based alloys. They provide the same advantages but to a lesser extent and at a lower price. They are used mostly on less critical components that still require heat resistance properties. This sub-group is also much easier to machine realtive to the nickel and cobalt based superalloys

Superalloys should be machined with a positive and sharp cutting edges. Geometries that are suitable for austenitic stainless steel will also work well on HRSA. However, quality manufacturers will have in their catalogs additional geometries that are specifically designed for these challenging materials.


  • For general Turning of Material A-286 at stable conditions use a grade with a Very Hard substrate and PVD coating.
  • For general Milling use a grade with a Semi Hard substrate and PVD coating.
  • For detailed carbide grades recommendations, check the Below Chart, or use the Grades Wizrad.
  • Recommended Cutting speed range for turning at stable conditions is 440 - 610 [SFM] / 135 - 185 [m/min].
  • Recommended Cutting speed range for milling with stable clamping and short overhang is 330 - 460 [SFM] / 100 - 140 [m/min]
  • For detailed cutting speed recomendations, check the Below Table, or use our Speed and Feed Calculator.

  • Equivalent International Designations for Material A-286

    Standard Name
    saeASTM 368
    unsUNS S66286
    bsHR 5152
    anforZ06 NCT 25

    Chemical Composition for Material A-286

    Element Amount
    Iron (Fe)56%
    Nickel (Ni)25%
    Chromium (Cr)14.5%
    Titanium (Ti)2.1%
    Molybdenum (Mo)1.3%
    Silicon (Si)0.2%
    Manganese (Mn)0.2%
    Aluminum (Al)0.2%
    Carbon (C)0.05%

    Cutting Speeds Recomendations for Material A-286

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

    ApplicationVc (m/min)Vc (SFM)

    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 A-286

    * 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)