11mj Impact Device Dl Surface Hardened Layers Gear Portable Digital Hardness Tester
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11mj Impact Device Dl Surface Hardened Layers Gear Portable Digital Hardness Tester
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Features
Basic Infomation
Place of Origin: Beijing
Brand Name: HUATEC
Certification: ISO, CE, GOST
Model Number: Impact Device DL
High Light:

11mj portable digital hardness tester

,

HUATEC portable digital hardness tester

,

HUATEC digital hardness tester

Payment & Shipping Terms
Packaging Details: Standard export package
Delivery Time: 1-4days
Payment Terms: T/T, Paypal, Western Union
Supply Ability: 5000pcs per month
Specifications
Material: Metal
Color: Silver
Steel And Cast Steel: 17.9~68.5HRC
Impact Energy: 11mJ
Name: Impact Device DL
Ball Tip Diameter: 3mm
Ball Tip Material: Tungsten Carbide
Impact Device Diameter: 20mm
Impact Devide Length: 75mm
Ra Request For Work Piece: 1.6μm
Max. Hardness Of Workpiece: 940HV
Product Description

11mJ Impact Device DL Surface Hardened Layers Gear Portable Digital Hardness Tester

 

Application:

Measure the surface hardness of metal workpiece in narrow space such as gear,narrow groove or orifice

 
Roller industry (cast steel roll, forged steel roll, cast iron roll)
It is especially suitable for on-site hardness test of large parts and non-detachable parts
Mold cavity
Heavy-duty workpiece
Failure analysis of pressure vessel, turbine generator set and its equipment
Workpieces with very narrow experimental space
Bearings and other parts
Material division of metal material warehouse
Rapid detection of large workpieces in a wide range of multiple measuring parts

 

11mj Impact Device Dl Surface Hardened Layers Gear Portable Digital Hardness Tester 0

 

impact device DL                               

Materials to be tested

Hardness scales

                                           7 types 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

 

 

 

 

 

Common application for each 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 requested impact device DL:

Items

         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 ball 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

 


 

 

 

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