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The operation of portable Leeb hardness test is very easy, just need 3 steps:1) Push down the loading sheath to lock the impact body2) Press tightly the support ring of impact device on the surface of test sample3) Press down the release button on the top of the impact device to make a test
How do you test for hardness by manual Vickers hardness testing machine?Operation steps:1 Turn on power2 Select correct test force by load change hand-wheel from 0.01 to 1kgf3 Set conversion scale (HRA / HRB / HRC, etc) as you needs4 Set limit (quality judgment) if you need this function5 Put sample
When measuring, please select indenter and main test force according to the following table.ScaleIndenterTotal Test ForceN(kgf)Symbols Measuring RangeBΦ1.5888mm steel ball980.7(100)HRB 20-100C120° diamond1471(150)HRC 20-70A120° diamond588.4(60)HRA 20-88Scale A: It is used for measuring the m
How do you test for hardness by digital micro Vickers hardness tester?Here take eVIck-1AT model as sample, it with below features:• Automatic turret with 10X, 40X objective lens and Vickers diamond indenter• 10X electronic eyepiece with encoder, automatic calculate diagonal length• Color touch scree
How do you test for hardness by Brinell hardness testing machine?Here take a automatic turret digital Brinell hardness tester as sample: 1) Before turning on the hardness tester, make sure that the back of the hardness tester is inserted in the U disk，If there is no u disk，hardness measurement can n
| Name | Test Force | Note |
| Micro hardness tester | ≤2kgf （19.6N） | In market, test force from 10g to 1kgf is most widely used |
| Macro Vickers hardness tester | ＞2kgf （19.6N） | In market, load 5kgf, 10kgf, 30kgf, 50kgf, 100kgf type Macro Vickers most widely used |
| Name | Load type |
| Micro hardness tester | Dead weights is widely used |
| Macro Vickers hardness tester | Closed loop load cell is widely used |
| Average Diameter of Indentation d | Min. Thickness of Specimen | |||
| Ball Diameter | ||||
| D=1 | D=2.5 | D=5 | D=10 | |
| 0.2 | 0.08 | | | |
| 0.3 | 0.18 | | | |
| 0.4 | 0.33 | | | |
| 0.5 | 0.54 | | | |
| 0.6 | 0.8 | 0.29 | | |
| 0.7 | | 0.4 | | |
| 0.8 | | 0.53 | | |
| 0.9 | | 0.67 | | |
| 1 | | 0.83 | | |
| 1.1 | | 1.02 | | |
| 1.2 | | 1.23 | 0.58 | |
| 1.3 | | 1.46 | 0.69 | |
| 1.4 | | 1.72 | 0.8 | |
| 1.5 | | 2 | 0.92 | |
| 1.6 | | | 1.05 | |
| 1.7 | | | 1.19 | |
| 1.8 | | | 1.34 | |
| 1.9 | | | 1.5 | |
| 2 | | | 1.67 | |
| 2.2 | | | 2.04 | |
| Probe (Impact Device) | size | Photo |
| C | 139*20mm |  |
| D | 148*20mm |  |
| DL | 204*50*4mm |  |
| DC | 86*20mm |  |
| D+15 | 164*14mm |  |
| G | 246*30mm |  |
| Item | Load cell based machine | Dead weights base machine |
| Load selection | By touch screen or keypad | By switch hand-wheel |
| Installation | No need installation, can work directly | Install dead weights to machine |
| Scales | Normally support more hardness scales, add or remove scale much easier than weights base machine, customized more easier | Very difficult to add or remove test force, add load means have to add dead weights, whole machine structure maybe have to re-design |
| Accuracy | Good, can meet ASTM and ISO standard | Good, can meet ASTM and ISO standard |
| Stable | Load cell sensor after years working maybe need to do calibration work or damage have to change a new sensor | The test force system of dead weights base machine is mechanical type, it can keep same accuracy after years working since weight of weights not change |
| Item | Rockwell | Superficial Rockwell |
| Test force | Initial test force: 10kgf Main test force: 60 / 100 / 150kgf | Initial test force: 3kgf Main test force: 15 / 30 / 45kgf |
| Hardness scale | HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK, HRL, HRM, HRP, HRR, HRS, HRV | HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X, HR30X, HR45X, HR15Y, HR30Y, HR45Y |
| No. | Hardness scale | Application |
| 1 | HRA | Hard metal and hard alloy |
| 2 | HRB | Non-ferrous metals; soft metals |
| 3 | HRC | Heat treated structural steel, tool steel |
| 4 | HRD | Steel sheet, surface-quenched steel |
| 5 | HRE | Aluminum and aluminum alloy |
| 6 | HRF | Non-ferrous metals |
| 7 | HRG | Pearlite iron, copper, nickel, zinc alloy |
| 8 | HRH | annealed copper alloy |
| 9 | HRK | Non-ferrous metals, hard plastics |
| 10 | 15N | Hard alloy steel, nitride steel, carburized steel, various heavy steel plate, etc |
| 11 | 30N | Surface-quenched steel, carburized steel, knife, thin steel plate, etc |
| 12 | 45N | Quenched steel, tempered steel, hard cast iron and edge of parts, etc |
| 13 | 15T | Annealed copper alloy, mild steel sheet, brass、bronze plate, etc |
| 14 | 30T | Mild steel sheet, aluminum alloy, copper alloy, brass and bronze, malleable cast iron |
| 15 | 45T | Pearlite iron, copper -nickel alloy and zinc-nickel alloy plate, etc |
| 16 | 15W | Annealed copper alloy, mild steel, etc |
| 17 | 30W | Aluminum and aluminum alloy, magnesium mild steel, etc |
| 18 | 45W | Zinc, aluminum, lead, bronze, beryllium bronze, etc |
| 19 | 15X | Aluminum, tin, zinc, soft metals, plastics, hard cardboard, etc |
| 20 | 30X | |
| 21 | 45X |
The operation of portable Leeb hardness test is very easy, just need 3 steps:1) Push down the loading sheath to lock the impact body2) Press tightly the support ring of impact device on the surface of test sample3) Press down the release button on the top of the impact device to make a test
View MoreHow do you test for hardness by manual Vickers hardness testing machine?Operation steps:1 Turn on power2 Select correct test force by load change hand-wheel from 0.01 to 1kgf3 Set conversion scale (HRA / HRB / HRC, etc) as you needs4 Set limit (quality judgment) if you need this function5 Put sample
View MoreWhen measuring, please select indenter and main test force according to the following table.ScaleIndenterTotal Test ForceN(kgf)Symbols Measuring RangeBΦ1.5888mm steel ball980.7(100)HRB 20-100C120° diamond1471(150)HRC 20-70A120° diamond588.4(60)HRA 20-88Scale A: It is used for measuring the m
View MoreHow do you test for hardness by digital micro Vickers hardness tester?Here take eVIck-1AT model as sample, it with below features:• Automatic turret with 10X, 40X objective lens and Vickers diamond indenter• 10X electronic eyepiece with encoder, automatic calculate diagonal length• Color touch scree
View MoreHow do you test for hardness by Brinell hardness testing machine?Here take a automatic turret digital Brinell hardness tester as sample: 1) Before turning on the hardness tester, make sure that the back of the hardness tester is inserted in the U disk，If there is no u disk，hardness measurement can n
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