Material 20CB-3


General Information for Material 20CB-3

Material Group S - Superalloys (Heat resistant and Titanium)
Sub-Group Superalloy
Hardness 217.0 HB
Tensile Strength 690 [N/mm^2]
Machinability Range 45%

MACHINABILITY OF 20CB-3 MATRIAL


20CB-3 is an iron-based heat resistant superalloy (HRSA) material with a machinability rating of 45% and hardness of 217 HB.

20CB-3 has 41% iron, 33% nickel and additional alloying elements per the table below

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 relative 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.


SUMMARY:
  • For general Turning of Material 20CB-3 at stable conditions use a grade with a Very Hard substrate and thin PVD coating
  • For general milling use a grade with a semi hard substrate and PVD coating.
  • For detailed carbide grades recommendations, check the table below
  • Recommended Cutting speed range for turning at stable conditions is 510 - 670 [SFM] / 155 - 205 [m/min].
  • Recommended Cutting speed range for milling with stable clamping and short overhang is380 - 510 [SFM] / 115 - 155 [m/min]
  • For detailed cutting speed recomendations, check the table below.

  • Equivalent International Designations for Material 20CB-3

    Standard Name
    SAE ASTM B463

    Chemical Composition for Material 20CB-3

    Element Amount
    Iron (Fe) 41%
    Nickel (Ni) 33%
    Chromium (Cr) 20%
    Molybdenum (Mo) 2.2%
    Manganese (Mn) 2%
    Silicon (Si) 1%
    Carbon (C) 0.07%

    Cutting Speeds Recomendations for Material 20CB-3

    Application Vc (m/min) Vc (SFM)
    Turning 155-205 510-670
    Milling 115-155 380-510
    Parting 95-130 310-430
    Grooving 135-180 440-590
    Drilling 135-180 440-590

    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.

    Grade for Turning

    Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
    SHARP METAL
    RS15T PVD S15
    RS25T PVD S25
    RS35T PVD S35
    FM CARBIDE
    FM524 CVD S05 - S10
    FM2533 CVD S15
    CANELA
    KM15 Uncoated N05 - N10
    TN15 CVD S05- S15
    TS20 PVD S10- S25
    ZR10 PVD S05
    ISCAR
    IC806 (IC804) PVD S05 - S20
    IC807 (IC907) PVD S10 - S25
    IC830 (IC328) PVD S20 - S35
    Seco
    TS2000 (CP200) PVD S05 - S25
    CP500 PVD S15 - S25
    TS2500 PVD S20 - S35
    CP600 PVD S20 - S35
    KENNAMETAL
    KCU10 (KC5010) PVD S10 - S20
    KCU25 (KC5025) PVD S20 - S30
    SANDVIK
    S05F CVD S05 - S10
    GC1105 PVD S10 - S15
    GC1115 PVD S15 - S20
    GC1125 PVD S20 - S30
    TUNGALOY
    AH8005 PVD S05 - S10
    AH8015 PVD S10 - S20
    WALTER
    WSM10S (WSM10) PVD S05 - S20
    WSM01 PVD S05
    WSM20S (WSM20) PVD S10 - S30
    WSM30S (WSM30) PVD S20 - S40
    MITSUBISHI
    MP9005 PVD S05 - S15
    MP9015 PVD S10 - S20
    VP20RT PVD S15 - S35
    SUMITOMO
    AC5005S (AC510U) PVD S05 - S10
    AC5015S PVD S05 - S15
    AC5025S (AC520U) PVD S10 - S30
    KYOCERA
    PR005S(PR1310) PVD S15
    PR015S PVD S15-S25
    PR1125 PVD S25-S35
    PR1325 PVD S25
    PR1535 PVD S35
    HITACHI TOOL
    JP9115 PVD S15
    Pramet
    T6310(T8310) PVD S15
    T8330 PVD S25
    T8345 PVD S35
    KORLOY
    PC8105 PVD S15
    PC8110 PVD S15-S25
    PC8115 PVD S25
    PC5300 PVD S25
    PC9030(PC9070T) PVD S35
    PC3030T(PC5400) PVD S35
    YBG102(YBG105) PVD S15
    YBG202 PVD S15-S25
    YBG205 PVD S15-S25
    YB9320 PVD S25
    YBG302 PVD S35

    Grade for Parting Off

    Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
    FM CARBIDE
    FM2543 CVD S20
    FM2553 CVD S30
    CANELA
    KM15 Uncoated S15
    SANDVIK
    GC1105 PVD S05 - S20
    GC1145 PVD S20 - S40
    ISCAR
    IC807 (IC907) PVD S05 - S10
    IC808 (IC908) PVD S10 - S25
    IC830 (IC328) PVD S25 - S40
    SECO
    CP500 PVD S15 - S25
    AH725 PVD S15 - S25
    KENNAMETAL
    KCU10 PVD S05 - S15
    KCU25 PVD S15 - S30
    WALTER
    WSM33S (WSM33) PVD S20 - S40
    WSM13S PVD S05 - S20
    WSM23S PVD S10 - S30
    WSM43S PVD S30 - S45
    SUMITOMO
    AC520U PVD S10 - S25
    AC1030U (AC530U) PVD S20 - S40
    TUNGALOY
    AH7025 PVD S15 - S25
    AH725 PVD S15 - S25
    MITSUBISHI
    VP10RT PVD S05 - S10
    VP20RT PVD S10 - S25
    VP30RT PVD S25 - S40


    Grade for Grooving

    Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
    FM CARBIDE
    FM2533 CVD S10
    CANELA
    KM15 Uncoated S15
    SANDVIK
    GC1125 PVD S10 - S30
    ISCAR
    IC806 (IC804) PVD S05 - S15
    IC808 (IC908) PVD S15 - S25
    IC830 (IC328) PVD S25 - S35
    KENNAMETAL
    KCU10 PVD S05 - S20
    KCU25 PVD S20 - S30
    WALTER
    WSM13S PVD S05 - S20
    WSM23S PVD S10 - S30
    WSM33S (WSM33) PVD S20 - S40
    WSM43S PVD S30 - S45
    SECO
    CP500 PVD S15 - S20
    CP600 PVD S20 - S35
    TUNGALOY
    AH905 PVD S05 - S10
    AH725 PVD S15 - S25
    AH7025 PVD S15 - S25
    MITSUBISHI
    VP10RT PVD S05 - S10
    VP20RT PVD S10 - S25
    VP30RT PVD S25 - S40
    SUMITOMO
    AC520U PVD S10 - S25
    AC1030U (AC530U) PVD S20 - S40

    Grade for Milling (Indexable)

    Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
    FM CARBIDE
    FM125 PVD S15-S35
    CANELA
    TS20 PVD S10-S25
    SANDVIK
    S30T PVD S10 - S30
    S40T CVD S25 - S40
    ISCAR
    IC808 (IC908) PVD S05 - S25
    IC830 (IC928) PVD S20 - S40
    KENNAMETAL
    KC510M PVD S05 - S10
    KC522M PVD S15 - S30
    KCSM40 PVD S25 - S40
    SECO
    F40M PVD S05 - S25
    MS2500 CVD S05 - S25
    MS2050 PVD S10 - S35
    TUNGALOY
    AH120 PVD S10 - S25
    AH725 PVD S15 - S25
    MITSUBISHI
    MP9120(VP15TF) PVD S05 - S25
    MP9130 PVD S15 - S35
    SUMITOMO
    ACU2500 PVD S05 - S25
    ACM200 CVD S10 - S30
    ACM300 PVD S20 - S40
    SHARP METAL
    RS20M PVD S20
    RS30M PVD S30
    RS40M PVD S40
    KYOCERA
    PR1210 PVD S20
    PR1535 PVD S30
    PR1535 PVD S40
    HITACHI TOOL
    JS1025(JP4120) PVD S20
    PTH30H PVD S30
    JM4160 PVD S40
    PRAMET
    M6330 PVD S20-S30
    8215 PVD S20
    M8340 PVD S30
    M8345(M8346) PVD S40
    KORLOY
    PC5300 PVD S20-S30
    PC8110 PVD S20
    PC5400 PVD S30-S40
    PC3545 PVD S40
    ZCC
    YBG102 PVD S20
    YBG202 PVD S20-S30
    YBG205 PVD S20-S30


    Recommended Insert Cutting Edge Geometry for Material 20CB-3

    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