Machining DataSheet for

General Information:
Material GroupM - Stainless Steel
Sub-GroupAustenitic Stainless Steel
Tensile Strength [N/mm^2]
Machinability47%

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Machining Stainless Steel 302

Stainless Steel 302 is an austenitic stainless steel alloy with 19.5% chromium and 7.5% nickel.

Summery:

  • For general Turning of Stainless Steel 302 at stable conditions use a grade with a Semi Hard substrate and CVD coating.
  • In case you are running at a cutting speed that is lower than 390 SFM (120 m/min), it is better to use a grade with a
    • Semi 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 570 - 770 [SFM] / 175 - 235 [m/min].
  • Recommended Cutting speed range for milling with stable clamping and short overhang is 360 - 490 [SFM] / 110 - 150 [m/min]
  • For detailed cutting speed recomendations, check the Below Table, or use our Speed and Feed Calculator.

    • Equivalent International Designations for Stainless Steel 302

    Standard Name
    sae302
    wnr1.4319
    dinX12CrNi18-9
    bs302S31
    ss2330
    anforZ10CN18.09
    uniX10CrNi18 09
    unfF.314

    Chemical Composition for Stainless Steel 302

    Element Amount
    Chromium (Cr)19.5%
    Nickel (Ni)7.5%
    Silicon (Si)2%
    Manganese (Mn)2%
    Molybdenum (Mo)1.5%
    Carbon (C)0.3%
    Phosphorus (P)0.05%
    Sulfur (S)0.05%

    Cutting Speeds Recomendations for Stainless Steel 302

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

    ApplicationVc (m/min)Vc (SFM)
    Turning175-235570-770
    Milling110-150360-490
    Parting70-95230-310
    Grooving105-140340-460
    Drilling50-70160-230

    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 Stainless Steel 302

    * 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 Stainless Steel 302

    Honing Size:0.03-0.05 mm / 0.001-0.002"
    Rake Angle:9° -11°
    Land Angle:Positive
    Land Width:0.20-0.30 mm / 0.008-0.012"

    Learn more about carbide inserts Cutting-Edge Geometry Parameters.

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