Send Message
Home News

How to use Rockwell hardness tester correctly?

China Dongguan Quality Control Technology Co., Ltd. certification
China Dongguan Quality Control Technology Co., Ltd. certification
Customer Reviews
The touch screen micro vickers hardness tester has been installed a few weeks ago, everything is OK. Thanks for your advice and excellent service.

—— Mr. David Chambers

Thanks for the fast delivery and our customer is very satisfied for the rockwell hardness tester, and hope more orders soon.

—— Neil Renato

After we visited the customer, they finally decided to purchase Brinell hardness tester iBrin-413Z, now we have installed the unit at customer’s site,

—— Fermin Lee

Thank you for the indenters (diamond  cone 120 degrees). We recently got it and already tested it. Indenters  are good as we expected. 

—— Dalius Skinulis

The Measurements are good for Brinell Tester HBST-3000.

—— Sun Chull Kim

Hey, the hardness tester iVick-484ST was installed last week and works well, thanks for the professional support.

—— Sabinian Smith

I am glad to inform you that the installation of the SHB-3000C Brinell hardness tester has been finished successfully. I would like to thank you!

—— Robbin

I'm Online Chat Now
Company News
How to use Rockwell hardness tester correctly?
Latest company news about How to use Rockwell hardness tester correctly?


How to use Rockwell hardness tester correctly?


1. When replacing the indenter or anvil, the contact parts should be kept clean. After replacement, use a steel sample of a certain hardness to test several times until the hardness values obtained twice in a row are the same.


The purpose is to press the contact part between the indenter or anvil and the testing machine tightly and ensure good contact, so as not to affect the accuracy of the test results.


2. The hardness tester itself will produce two kinds of errors. One is the error caused by the deformation and movement of its parts; the other is the error caused by the hardness parameters exceeding the prescribed standards.


For the second type of error, the hardness tester needs to be calibrated with a standard block before measurement. For the Rockwell hardness tester calibration results, the difference is qualified within ±1. A stable value with a difference within ±2 can give a correction value. When the difference is outside the range of ±2, the hardness meter must be calibrated and repaired or other hardness testing methods must be used.


3. Before loading, check whether the loading handle is in the unloading position. Normally iqualitrol Rockwell testers equips metal loading handle. When loading, the movement should be gentle and steady, and do not use too much force. After loading, the loading handle should be placed in the unloading position to prevent the instrument from being under load for a long time and causing plastic deformation, which will affect the measurement accuracy.


4. For specimens with complex shapes, cushion blocks of corresponding shapes should be used and fixed before testing. Round specimens are generally placed in a V-shaped groove for testing.


5. Instrument maintenance: After the hardness tester is adjusted, when starting to measure the hardness, the first test point is not used. Because of fear of poor contact between the sample and the anvil, the measured value will be inaccurate. After the first point test is completed and the hardness tester is in the normal operating mechanism, the sample is formally tested and the measured hardness value is recorded.


6. When the test piece allows, it is generally recommended to test at least three hardness values in different parts and take the average value as the hardness value of the test piece.



Pub Time : 2024-05-11 09:14:55 >> News list
Contact Details
Dongguan Quality Control Technology Co., Ltd.

Contact Person: Mr. Raymond Chung

Tel: 86-13711988687

Fax: 86-769-22784276

Send your inquiry directly to us (0 / 3000)