Answer:
Firstly, it must be known what material is tested, please check the typical application in the following table, it will be helpful to choose right probe. If there is coating or plating on the specimen, it is better to choose the motorzied probe with minimum testing force, but you must …
The FAQ of Rockwell Hardness Tester
Who did invent Rockwell testing method for the material testing?
Answer: It is acceptable that Mr. Hugh M. Rockwell (1890–1957) and Mr. Stanley P. Rockwell (1886–1940) from Connecticut in the United States co-invented the "Rockwell hardness tester," a …
The FAQ of Ultrasonic Hardness Tester
Are there any international standard for the ultrasonic hardness tester?
There are three standards for the ultrasonic hardness testers acceptable in the world, the standard number as follows:
ASTM A1038-2017; DIN50159-2009; GB/T 34205-2017
What …
