Special Design for Barcol Hardness Scale - The Impact Device of Hardness Tester – TMTeck
Special Design for Barcol Hardness Scale - The Impact Device of Hardness Tester – TMTeck Detail:
The Impact Device of Hardness Tester
Different Types of Impact Device
Material |
Hardness method |
Impact device |
|||||
D/DC |
D+15 |
C |
G |
E |
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 |
||
Hammered steel |
HB |
143~650 |
|||||
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 |
||||||
Gray cast iron |
HRC |
||||||
HB |
93~334 |
92~326 |
|||||
HV |
|||||||
Nodular cast iron |
HRC |
||||||
HB |
131~387 |
127~364 |
|||||
HV |
|||||||
Cast aluminum 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-aluminum/copper-tin alloys) |
HB |
60~290 |
|||||
Wrought copper alloys |
HB |
45~315 |
Non conventional impact devices |
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 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 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 workpiece |
940HV |
940HV |
1000HV |
650HB |
1200HV |
|
Mean roughness of workpiece surface of the 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 harden |
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 |
Indentation depth |
24μm |
24μm |
12μm |
53μm |
24μm |
|
Hardness 600HV |
Indentation diameter |
0.54mm |
0.54mm |
0.32mm |
0.90mm |
0.54mm |
Indentation depth |
17μm |
17μm |
8μm |
41μm |
17μm |
|
Hardness 800HV |
Indentation diameter |
0.35mm |
0.35mm |
0.35mm |
– |
0.35mm |
Indentation depth |
10μm |
10μm |
7μm |
– |
10μm |
|
Available type of impact device |
D: General test
DC: Hole or hollow-cylindrical test
DL: Slender narrow groove or hole test
|
D+15: groove or reentrant surface |
C: small, light, thin parts or surface of hardend layer |
G: large, thick, heavy or rough surface steel |
E: 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) |
|
D、DC |
3 |
5 |
DL |
3 |
5 |
D+15 |
3 |
5 |
G |
4 |
8 |
E |
3 |
5 |
C |
2 |
4 |
Product detail pictures:












Related Product Guide:
Our pros are lessen prices,dynamic sales team,specialised QC,sturdy factories,top quality services and products for Special Design for Barcol Hardness Scale - The Impact Device of Hardness Tester – TMTeck , The product will supply to all over the world, such as: Munich, Lithuania, Las Vegas, We are proud to supply our products to every auto fan all around the world with our flexible, fast efficient services and strictest quality control standard which has always approved and praised by customers.

Problems can be quickly and effectively resolved, it is worth to be trust and working together.
