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Hardness unit of steel pipes
Source :本站   Time:6/28/2017 9:34:23 PM   hit:

    Hardness unit of steel pipes

       With a certain diameter of the ASME SA106 GR. B Carbon Steel Seamless Pipe or carbide ball, with a specified test force (F) pressed into the surface of the sample, after a specified time to remove the test force to measure the surface indentation diameter (L). The Brinell hardness value is the quotient of the test force divided by the indentation spherical surface area. In HBS (steel ball), said unit is N / mm2 (MPa).

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