Impact Device of Portable Hardness Tester

Product Infomation
Hardness tester impact device also called hardness tester probe.User can choose various impact device according to various application and work piece.These impact device includes D, DC, DL, D+15, C, E, G
  • Model:D, DC, DL, D+15, C, G,E
  • Specifications:HLD, HRA, HRC, HRB, HB, HV, HS
  • Color:Black, Blue
  • Brand:AJR
Details

Impact Device Application:

D / DC: Test hole or hollow cylindrical;

DL: Test lender 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 steel,

E: Test super high hardness material

Type of Impact Device

Distance of center of the two indentations

Distance of center of the indentation to sample edge

Not less than (mm)

Not less than (mm)

DDC

3

5

DL

3

5

D+15

3

5

G

4

8

E

3

5

C

2

4


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)/75mm50g

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

25kg

0.052kg

>5kg

25kg

0.052kg

>1.5kg

0.51.5kg

0.020.5kg

>15kg

515kg

0.55kg

>5kg

25kg

0.052kg

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

Available type of impact device

DC: Test hole or hollow cylindrical; DL:Testslender 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 steel

E: Test super high hardness material



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