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编号 :

1105904251126304768

Portable Leeb Hardness Tester Probes

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    • Commodity name: Portable Leeb Hardness Tester Probes
    • Commodity ID: 1105904251126304768
    There are 7 kinds of probes to work with Leeb hardness tester for different applications, which is D / DC / D+15 / C / G / E /DL.
     
    ● Universal Impact Device D - For the majority of hardness testing requirements.
     
    ● DC - Used in very confined spaces, e.g. in holes, cylinders or for internal measurements on assembled machines.
     
    ● DL - For measurements in extremely confined spaces or at the base of grooves.
     
    ● D+15 - For measurements in grooves or recessed surface.
     
    ● C - Surface hardened components, coatings, thin walled or impact sensitive components (small measuring indentation).
     
    ● G - Solid heavy or rough components. e.g. heavy castings and forgings.
     
    ● E - For super hard materials.
     
    Measuring range of hardness tester probes
      

    Material Hardness

    Hardness scale

    Impact device

    D/DC

    D+15

    C

    G

    E (imported)

    DL

    Steel and cast steel

    HRC 

    17.9~68.5

    19.3~67.9

    20.0~69.5

     

    22.4~70.7

    20.6~68.2

    HRB 

    59.6~99.6

     

     

    47.7~99.9

     

    37.0~99.9

    HRA 

    59.1~85.8

     

     

     

    61.7~88.0

     

    HB  

    127~651

    80~638

    80~683

    90~646

    83~663

    81~646

    HV   

    83~976

    80~937

    80~996

     

    84~1042

    80~950

    HS   

    32.2~99.5

    33.3~99.3

    31.8~102.1

     

    35.8~102.6

    30.6~96.8

    Steel

    HB

    143~650

     

     

     

     

     

    CWT. steel

    HRC  

    20.4~67.1

    19.8~68.2

    20.7~68.2

     

    22.6~70.2

     

    HV  

    80~898

    80~935

    100~941

     

    82~1009

     

    Stainless steel

    HRB

    46.5~101.7

     

     

     

     

     

    HB

    85~655

     

     

     

     

     

    HV

    85~802

     

     

     

     

     

    GC. iron

    HRC

     

     

     

     

     

     

    HB

    93~334

     

     

    92~326

     

     

    HV

     

     

     

     

     

     

    NC. iron

    HRC

     

     

     

     

     

     

    HB

    131~387

     

     

    127~364

     

     

    HV

     

     

     

     

     

     

    C. Alum

    HB

    19~164

     

    23~210

    32~168

     

     

    HRB

    23.8~84.6

     

    22.7~85.0

    23.8~85.5

     

     

    Brass

    HB

    40~173

     

     

     

     

     

    HRB

    13.5~95.3

     

     

     

     

     

    Bronze

    HB

    60~290

     

     

     

     

     

    Copper

    HB

    45~315

     

     

     

     

     

      Tolerance and repeatability

    No.

    impact device

    Hardness value of Leeb standard hardness block

    Accuracy of displayed value

    Repeatability of displayed value

    1

    D

    790±40HLD 530±40HLD

    ±6 HLD ±10 HLD

    6 HLD 10 HLD

    2

    DC

    790±30HLDC 530±40HLDC

    ±6 HLDC ±10 HLDC

    6 HLDC 10 HLDC

    3

    DL

    894±40HLDL 736±40HLDL

    ±12 HLDL

    12 HLDL

    4

    D+15

    795±40HLD+15 544±40HLD+15

    ±12 HLD+15

    12 HLD+15

    5

    G

    590±40HLG 500±40HLG

    ±12 HLG

    12 HLG

    6

    E

    755±40HLE 508±40HLE

    ±12 HLE

    12 HLE

    7

    C

    851±40HLC 590±40HLC

    ±12 HLC

    12 HLC

      Technical specifications of impact devices

    Types of impact device

    DC(D)/DL

    D+15

    C

    G

    E(imported)

    Impact energy
    Mass of impact body

    11mJ
    5.5g/7.2g

    11mJ
    7.8g

    2.7mJ
    3.0g

    90mJ
    20.0g

    11mJ
    5.5g

    Test tip hardness
    Diameter of test tip
    Material of test tip

    1600HV
    3mm
    Tungsten carbide

    1600HV
    3mm
    Tungsten carbide

    1600HV
    3mm
    Tungsten carbide

    1600HV
    5mm
    Tungsten carbide

    5000HV
    3mm
    Diamond

    Impact device diameter
    Impact device length
    Impact device weight

    20mm
    86(147)/ 75mm
    50g

    20mm
    162mm
    80g

    20mm
    141mm
    75g

    30mm
    254mm
    250g

    20mm
    155mm
    80g

    Max. hardness of sample

    940HV

    940HV

    1000HV

    650HB

    1200HV

    Roughness of sample surface

    1.6μm

    1.6μm

    0.4μm

    6.3μm

    1.6μm

    Minimum weight of sample:
    Measure directly
    Need support firmly
    Need coupling tightly

    >5kg
    2~5kg
    0.05~2kg

    >5kg
    2~5kg
    0.05~2kg

    >1.5kg
    0.5~1.5kg
    0.02~0.5kg

    >15kg
    5~15kg
    0.5~5kg

    >5kg
    2~5kg
    0.05~2kg

    Min. thickness of sample Coupling tightly
    Min. depth of layer thickness for surface

    5mm
    ≥0.8mm

    5mm
    ≥0.8mm

    1mm
    ≥0.2mm

    10mm
    ≥1.2mm

    5mm
    ≥0.8mm

      Size of tip indentation

    Hardness
    300HV

    Indentation diameter

    0.54mm

    0.54mm

    0.38mm

    1.03mm

    0.54mm

    Depth of indentation

    24μm

    24μm

    12μm

    53μm

    24μm

    Hardness
    600HV

    Indentation diameter

    0.54mm

    0.54mm

    0.32mm

    0.90mm

    0.54mm

    Depth of indentation

    17μm

    17μm

    8μm

    41μm

    17μm

    Hardness
    800HV

    Indentation diameter

    0.35mm

    0.35mm

    0.35mm

     

    0.35mm

    Depth of indentation

    10μm

    10μm

    7μm

     

    10μm

     

     

    D: General test.
    DC : Testing hole or inner of cylinder.
    DL : Test slender narrow groove or hole

    D+15 : Test
    groove or
    reentrant
    surface.

    C :
    Test small, light,
    thin parts and
    surface of hardened
    layer.

    G :
    Test large,
    thick, heavy
    and rough
    surface cast
    steel.

    E :
    Test super high
    hardness
    Material.

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