Cheap price Brinell Hardness Testing Machine - The Impact Device of Hardness Tester – TMTeck
Cheap price Brinell Hardness Testing Machine - The Impact Device of Hardness Tester – TMTeck Detail:
The Impact Device of Hardness Tester
Different Types of Impact Device
|
Material |
Hardness method |
Impact device |
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|
D/DC |
D+15 |
C |
G |
E |
DL |
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|
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 |
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|
HRA |
59.1~85.8 |
61.7～88.0 |
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|
HB |
127～651 |
80～638 |
80～683 |
90～646 |
83～663 |
81～646 |
|
|
HV |
83～976 |
80～937 |
80～996 |
84～1042 |
80～950 |
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|
HS |
32.2～99.5 |
33.3～99.3 |
31.8～102.1 |
35.8～102.6 |
30.6～96.8 |
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|
Hammered steel |
HB |
143~650 |
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|
Cold work tool steel |
HRC |
20.4～67.1 |
19.8～68.2 |
20.7～68.2 |
22.6～70.2 |
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|
HV |
80～898 |
80～935 |
100～941 |
82～1009 |
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|
Stainless steel |
HRB |
46.5～101.7 |
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|
HB |
85～655 |
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|
HV |
85～802 |
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|
Gray cast iron |
HRC |
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|
HB |
93～334 |
92～326 |
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|
HV |
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|
Nodular cast iron |
HRC |
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|
HB |
131～387 |
127～364 |
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|
HV |
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|
Cast aluminum alloys |
HB |
19～164 |
23～210 |
32～168 |
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|
HRB |
23.8～84.6 |
22.7～85.0 |
23.8～85.5 |
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|
Brass(copper-zinc alloys) |
HB |
40～173 |
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|
HRB |
13.5～95.3 |
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|
Bronze (copper-aluminum/copper-tin alloys) |
HB |
60～290 |
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|
Wrought copper alloys |
HB |
45～315 |
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|
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 tipMaterial 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 |
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|
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 |
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By Joseph from Guatemala - 2018.10.31 10:02
