Machining DataSheet for

General Information:
Material GroupP - Steel
Sub-GroupLow Alloy Steel
Tensile Strength700-750 [N/mm^2]
Machinability63%

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Machining Steel 5140

Steel 5140 is a low-alloy steel with a carbon content of 0.4% and additional 1.6% content of manganese, chromium. (See details in the below table). Steel 5140 has a machinability rating of 63%.

Low alloy steels are very popular in machine shops. The small amount of alloying elements enhances their mechanical properties and hardenability without a significant sacrifice in terms of machinability.

You can find here a list of machinability Ratings for different Low Alloy Steels.

Summery:

  • For general Turning of Steel 5140 at stable conditions use a grade with a Hard substrate and CVD coating.
  • In case you are running at a cutting speed that is lower than 490 SFM (150 m/min), it is better to use a grade with a
    • 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 770 - 1050 [SFM] / 235 - 320 [m/min].
  • Recommended Cutting speed range for milling with stable clamping and short overhang is 480 - 640 [SFM] / 145 - 195 [m/min]
  • For detailed cutting speed recomendations, check the Below Table, or use our Speed and Feed Calculator.

    • Equivalent International Designations for Steel 5140

    Standard Name
    sae5140
    wnr1.7035
    din41Cr4
    bs530M40
    anfor42C4
    uni41Cr4
    unf42Cr4
    js1SCr440(H)

    Chemical Composition for Steel 5140

    Element Amount
    Manganese (Mn).70-.90%
    Chromium (Cr).70-.90%
    Carbon (C).38-.43%

    Cutting Speeds Recomendations for Steel 5140

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

    ApplicationVc (m/min)Vc (SFM)
    Turning235-320770-1050
    Milling145-195480-640
    Parting115-155380-510
    Grooving130-180430-590
    Drilling95-125310-410

    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 Steel 5140

    * If you do nott understand the below table? Read This Explanation to make the most out of it!

    Grade for Turning

    Brand Grade ISO Material app App Coating Apps Range 05 10 15 20 25 30 35 40 45
    Sandvik GC4305 P P - Steel T Turning CVD P05 - P10 P P
    Sandvik GC1115 P P - Steel T Turning PVD P05 - P20 P P P P
    Sandvik GC4415 (GC4315) P P - Steel T Turning CVD P10 - P15 P P
    Sandvik GC4425 (GC4325) P P - Steel T Turning CVD P15 - P30 P P P P
    Sandvik GC1125 P P - Steel T Turning PVD P20 - P30 P P P
    Sandvik GC4335 P P - Steel T Turning CVD P30 - P40 P P P
    Iscar IC807 (IC907) P P - Steel T Turning PVD P05 - P25 P P P P P
    Iscar IC8150 P P - Steel T Turning CVD P10 - P15 P P
    Iscar IC8250 P P - Steel T Turning CVD P15 - P30 P P P P
    Iscar IC830 (IC328) P P - Steel T Turning PVD P25 - P45 P P P P P
    Kennametal KCP05B (KCP05) P P - Steel T Turning CVD P05 - P10 P P
    Kennametal KCU10 (KC5010) P P - Steel T Turning PVD P10 - P20 P P P
    Kennametal KCP10B (KCP10) P P - Steel T Turning CVD P10 - P20 P P P
    Kennametal KCU25 (KC5025) P P - Steel T Turning PVD P20 - P30 P P P
    Kennametal KCP25B (KCP25) P P - Steel T Turning CVD P20 - P30 P P P
    Kennametal KCP30 P P - Steel T Turning CVD P30 - P40 P P P
    Kennametal KCP40B (KCP40) P P - Steel T Turning CVD P35 - P45 P P P
    Walter WPP10S (WPP10) P P - Steel T Turning CVD P05 - P20 P P P P
    Walter WPP05S (WPP05) P P - Steel T Turning CVD P05 - P15 P P P
    Walter WPP20S (WPP20) P P - Steel T Turning CVD P10 - P30 P P P P P
    Walter WPP30S (WPP30) P P - Steel T Turning CVD P20 - P40 P P P P P
    Seco TH1500 P P - Steel T Turning CVD P05 - P05 P
    Seco TP0501 P P - Steel T Turning CVD P05 - P20 P P P P
    Seco TP1501 P P - Steel T Turning CVD P10 - P25 P P P P
    Seco CP500 P P - Steel T Turning PVD P15 - P40 P P P P P P
    Seco TP2501 P P - Steel T Turning CVD P15 - P35 P P P P P
    Seco CP600 P P - Steel T Turning PVD P25 - P45 P P P P P
    Seco TP3501 P P - Steel T Turning CVD P30 - P40 P P P
    Tungaloy T9205 (T9105) P P - Steel T Turning CVD P05 - P10 P P
    Tungaloy T9215 (T9115) P P - Steel T Turning CVD P10 - P20 P P P
    Tungaloy AH725 P P - Steel T Turning PVD P15 - P30 P P P P
    Tungaloy T9225 (T9125) P P - Steel T Turning CVD P15 - P25 P P P
    Tungaloy T9235 (T9135) P P - Steel T Turning CVD P30 - P40 P P P
    Mitsubishi UE6105 P P - Steel T Turning CVD P05 - P15 P P P
    Mitsubishi VP15TF P P - Steel T Turning PVD P10 - P30 P P P P P
    Mitsubishi MC6015 (UE6010) P P - Steel T Turning CVD P10 - P20 P P P
    Mitsubishi MC6025 (UE6020) P P - Steel T Turning CVD P15 - P30 P P P P
    Mitsubishi MC6035 (UE6035) P P - Steel T Turning CVD P25 - P40 P P P P
    Sumitomo AC8015P (AC810P) P P - Steel T Turning CVD P05 - P15 P P P
    Sumitomo AC1030U P P - Steel T Turning PVD P10 - P30 P P P P P
    Sumitomo AC8020P P P - Steel T Turning CVD P10 - P25 P P P P
    Sumitomo AC8025P (AC820P) P P - Steel T Turning CVD P15 - P30 P P P P
    Sumitomo AC8035P (AC830P) P P - Steel T Turning CVD P25 - P45 P P P P P

    Grade for Milling (Indexable)

    Brand Grade ISO Material app App Coating Apps Range 05 10 15 20 25 30 35 40 45
    Sandvik GC4330 P P - Steel M Milling CVD P10 - P25 P P P P
    Sandvik GC4340 P P - Steel M Milling CVD P25 - P40 P P P P
    Iscar IC808 (IC908) P P - Steel M Milling PVD P05 - P15 P P P
    Iscar IC830 (IC928) P P - Steel M Milling PVD P10 - P40 P P P P P P P
    Kennametal KC510M P P - Steel M Milling PVD P05 - P10 P P
    Kennametal KC522M P P - Steel M Milling PVD P10 - P25 P P P P
    Kennametal KCPK30 P P - Steel M Milling CVD P25 - P40 P P P P
    Kennametal KC725M P P - Steel M Milling PVD P30 - P40 P P P
    Walter WKP25S (WKP25) P P - Steel M Milling CVD P15 - P35 P P P P P
    Walter WKP35G P P - Steel M Milling CVD P25 - P45 P P P P P
    Walter WSP45S (WSP45S) P P - Steel M Milling PVD P35 - P45 P P P
    Walter WSM45X P P - Steel M Milling CVD P35 - P45 P P P
    Seco F40M P P - Steel M Milling PVD P05 - P50 P P P P P P P P P
    Seco MP1501 P P - Steel M Milling CVD P05 - P20 P P P P
    Seco MP2501 P P - Steel M Milling CVD P15 - P45 P P P P P P P
    Tungaloy AH725 P P - Steel M Milling PVD P15 - P30 P P P P
    Tungaloy AH120 P P - Steel M Milling PVD P15 - P25 P P P
    Tungaloy AH3225 P P - Steel M Milling PVD P20 - P35 P P P P
    Tungaloy T3225 P P - Steel M Milling CVD P20 - P35 P P P P
    Tungaloy AH130 P P - Steel M Milling PVD P25 - P40 P P P P
    Tungaloy AH3135 P P - Steel M Milling PVD P30 - P40 P P P
    Mitsubishi MP6120 P P - Steel M Milling PVD P10 - P30 P P P P P
    Mitsubishi MP6130 P P - Steel M Milling PVD P20 - P40 P P P P P
    Mitsubishi VP30RT P P - Steel M Milling PVD P25 - P45 P P P P P
    Sumitomo XCU2500 P P - Steel M Milling CVD P05 - P30 P P P P P P
    Sumitomo ACP2000 P P - Steel M Milling CVD P05 - P25 P P P P P
    Sumitomo ACU2500 P P - Steel M Milling PVD P10 - P40 P P P P P P P
    Sumitomo ACP3000 P P - Steel M Milling PVD P20 - P45 P P P P P P

    Grade for Parting Off

    Brand Grade ISO Material app App Coating Apps Range 05 10 15 20 25 30 35 40 45
    Sandvik GC1125 P P - Steel P Parting PVD P05 - P20 P P P P
    Sandvik GC1135 P P - Steel P Parting PVD P15 - P35 P P P P P
    Iscar IC808 (IC908) P P - Steel P Parting PVD P05 - P30 P P P P P P
    Iscar IC830 (IC328) P P - Steel P Parting PVD P20 - P40 P P P P P
    Kennametal KCU10 P P - Steel P Parting PVD P05 - P20 P P P P
    Kennametal KCU25 P P - Steel P Parting PVD P20 - P30 P P P
    Walter WKP13S P P - Steel P Parting CVD P05 - P20 P P P P
    Walter WSM23S P P - Steel P Parting PVD P10 - P30 P P P P P
    Walter WSM33S (WSM33) P P - Steel P Parting PVD P20 - P40 P P P P P
    Walter WSM43S P P - Steel P Parting PVD P30 - P45 P P P P
    Seco TGP45 P P - Steel P Parting CVD P10 - P45 P P P P P P P P
    Seco CP500 P P - Steel P Parting PVD P20 - P45 P P P P P P
    Seco T350M P P - Steel P Parting CVD P25 - P45 P P P P P
    Seco CP600 P P - Steel P Parting PVD P30 - P50 P P P P
    Tungaloy AH725 P P - Steel P Parting PVD P15 - P30 P P P P
    Tungaloy AH7025 P P - Steel P Parting PVD P20 - P30 P P P
    Tungaloy GH130 P P - Steel P Parting PVD P25 - P40 P P P P
    Mitsubishi VP10RT P P - Steel P Parting PVD P05 - P10 P P
    Mitsubishi VP20RT P P - Steel P Parting PVD P10 - P30 P P P P P
    Mitsubishi VP30RT P P - Steel P Parting PVD P20 - P40 P P P P P
    Sumitomo AC1030U (AC530U) P P - Steel P Parting PVD P10 - P25 P P P P
    Sumitomo AC520U P P - Steel P Parting PVD P15 - P30 P P P P
    Sumitomo AC830P P P - Steel P Parting CVD P20 - P40 P P P P P

    Grade for Grooving

    Brand Grade ISO Material app App Coating Apps Range 05 10 15 20 25 30 35 40 45
    Sandvik GC1125 P P - Steel G Grooving PVD P05 - P35 P P P P P P P
    Iscar IC807 (IC907) P P - Steel G Grooving PVD P05 - P10 P P
    Iscar IC808 (IC908) P P - Steel G Grooving PVD P10 - P25 P P P P
    Iscar IC830 (IC328) P P - Steel G Grooving PVD P20 - P40 P P P P P
    Kennametal KC5010 P P - Steel G Grooving PVD P10 - P20 P P P
    Kennametal KCU10 P P - Steel G Grooving PVD P10 - P20 P P P
    Kennametal KCU25 P P - Steel G Grooving PVD P20 - P30 P P P
    Kennametal KC5025 P P - Steel G Grooving PVD P20 - P30 P P P
    Walter WKP13S P P - Steel G Grooving CVD P05 - P20 P P P P
    Walter WSM23S P P - Steel G Grooving PVD P10 - P30 P P P P P
    Walter WSM33S (WSM33) P P - Steel G Grooving PVD P20 - P40 P P P P P
    Walter WSM43S P P - Steel G Grooving PVD P30 - P45 P P P P
    Seco CP500 P P - Steel G Grooving PVD P10 - P25 P P P P
    Seco CP600 P P - Steel G Grooving PVD P20 - P40 P P P P P
    Tungaloy AH725 P P - Steel G Grooving PVD P15 - P30 P P P P
    Tungaloy T9225 (T9125) P P - Steel G Grooving CVD P15 - P25 P P P
    Tungaloy AH7025 P P - Steel G Grooving PVD P20 - P30 P P P
    Tungaloy GH130 P P - Steel G Grooving PVD P25 - P40 P P P P
    Mitsubishi VP10RT P P - Steel G Grooving PVD P05 - P10 P P
    Mitsubishi VP20RT P P - Steel G Grooving PVD P10 - P25 P P P P
    Mitsubishi MY5015 P P - Steel G Grooving CVD P10 - P20 P P P
    Mitsubishi VP30RT P P - Steel G Grooving PVD P20 - P40 P P P P P
    Sumitomo AC1030U (AC530U) P P - Steel G Grooving PVD P10 - P25 P P P P
    Sumitomo AC520U P P - Steel G Grooving PVD P15 - P30 P P P P
    Sumitomo AC830P P P - Steel G Grooving CVD P20 - P40 P P P P P

    Recommended Insert Cutting Edge Geometry for Steel 5140

    Honing Size:0.05-0.08 mm / 0.002-0.003"
    Rake Angle:11° -13°
    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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