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Stainless steel pipe Rockwell hardness test and Brinell hardness test are used in what way to test?

Stainless steel pipe Rockwell hardness test and Brinell hardness test are used in what way to test?

Time:2022-03-17 Source:China Wuxi JiaNuo Special Steel Co.

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Stainless steel pipe Rockwell hardness test is the same as Brinell hardness test, are indentation test method

In the stainless steel tube standards, Brinell hardness is the most widely used, often to indentation diameter to indicate the hardness of the material, both intuitive, and convenient. But for harder or thinner steel pipe is not applicable.

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Rockwell hardness

Stainless steel pipe Rockwell hardness test is the same as Brinell hardness test, are indentation test method. The difference is that it measures the depth of the indentation. Rockwell hardness test is a widely used method, in which HRC in the steel pipe standards used second only to Brinell hardness HB. Rockwell hardness can be applied to determine the metal material from very soft to very hard, it makes up for the Brinell method is not, easier than the Brinell method, can be read directly from the dial of the hardness machine hardness value. However, due to its small indentation, the hardness value is not as accurate as the Brinell method.

Vickers hardness

Stainless steel pipe Vickers hardness test is also an indentation test method, can be used to determine the hardness of very thin metal materials and surface layers. It has the main advantages of Brinell, Rockwell method, while overcoming their basic shortcomings, but not as easy as Rockwell method, Vickers method is rarely used in the steel pipe standards.