因为F和D都是定值，所以一般是先测得压痕直径d，依据d查表确认资料的布氏硬度值。布氏硬度值越大，资料越硬。波纹管生产线的波纹涵管用洛氏硬度计可以丈量从软到硬的各种不同资料，这是因为它采用了不同的压头和载荷，组成各种不同的洛氏硬度标尺，如HRA、HRB、HRC等。

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