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1600HV Dl Impact Probe Leeb Hardness Tester

Categories Hardness Testing Machine
Brand Name: HUATEC
Model Number: DL
Certification: CE
Place of Origin: Beijing
MOQ: 1 SET
Payment Terms: TT, L/C, Western Union
Delivery Time: from stock
Packaging Details: Standard export package
Impacting energy: 11mJ
Mass of impact body: 5.5g/7.2g
Test tip hardness: 1600HV
Dia. Test tip: 3mm
Material of test tip: Tungsten carbide
Device type: Type DL
HRC: 20.6~68.2
HRB: 37.0~99.9
HB: 81~646
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    1600HV Dl Impact Probe Leeb Hardness Tester

    Impact Device DL Impact Probe Leeb hardness test device Hardness probe


    Impack device DL hardness probe DL for hardness testing of steel, cast steel with HRC, HRB,HV,HS and HB scales.


    Its basic principle is that an impingent body with a certain mass impinges on the surface of the sample under a certain test force, and the impact velocity and rebound velocity at a distance of 1mm from the surface of the sample are measured. Using the electromagnetic principle, the voltage induced is proportional to the velocity. The value of Hardness is expressed as the ratio of the rebound velocity of the impact body to the impact velocity.


    impact devices

    Material

    Method

    Impact device

    D/DC

    D+15

    C

    G

    E

    DL

    Steel and cast steel


    HRC

    20~68.5

    19.3~67.9

    20.0~69.5


    22.4~70.7

    20.6~68.2

    HRB

    38.4~99.6



    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

    Cold work

    tool 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






    Grey cast iron


    HRC







    HB

    93~334



    92~326



    HV







    Nodular cast iron

    HRC







    HB

    131~387



    127~364



    HV







    Cast aluminium alloys

    HB

    19~164


    23~210

    32~168



    HRB

    23.8~84.6


    22.7~85.0

    23.8~85.5



    BRASS(copper-zinc alloys)


    HB

    40~173






    HRB

    13.5~95.3






    BRONZE(copper-aluminium/tin alloys)

    HB

    60~290






    Wrought copper alloys

    HB

    45~315






    Available type of impact device


    DC: Test hole or hollow cylindrical


    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 steel

    E: Test super high hardness material

    DL: Test slender narrow groove or hole

    Testing conditions:

    Type of impact device

    DC/D/DL

    D+15

    C

    G

    E

    Impacting 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:

    Dia. Test tip:

    Material of test tip:

    1600HV

    3mm

    Tungsten carbide

    1600HV

    3mm

    Tungsten carbide

    1600HV

    3mm

    Tungsten carbide

    1600HV

    5mm

    Tungsten carbide

    5000HV

    3mm

    synthetic 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

    Mean roughness value of sample surface Ra:

    1.6μm

    1.6μm

    0.4μm

    6.3μm

    1.6μm

    Min. 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. layer thickness for surface hardening


    5mm


    ≥0.8mm


    5mm


    ≥0.8mm


    1mm


    ≥0.2mm


    10mm


    ≥1.2mm


    5mm


    ≥0.8mm


    Size of tip indentation


    Hardness 300HV

    Indentation diameter

    Depth of indentation

    0.54mm


    24μm

    0.54mm


    24μm

    0.38mm


    12μm

    1.03mm


    53μm

    0.54mm


    24μm

    Hardness 600HV

    Indentation diameter

    Depth of indentation

    0.54mm


    17μm

    0.54mm


    17μm

    0.32mm


    8μm

    0.90mm


    41μm

    0.54mm


    17μm

    Hardness 800HV

    Indentation diameter

    Depth of indentation

    0.35mm


    10μm

    0.35mm


    10μm

    0.35mm


    7μm

    --


    --

    0.35mm


    10μm



    Support rings for Shaped Materials:


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