Hardness: HB, HRB

Hardness (HB, HRB) is a characteristic of a solid material expressing its resistance to permanent deformation. Hardness can be measured on the Mohs scale or various other scales.

How Hardness Works

When testing metals, indentation hardness correlates linearly with tensile strength. This important relationship permits economically important nondestructive testing of bulk metal deliveries with lightweight, even portable equipment. We provide Brinell, and Vickers, and Knoop testing to the aviation and industrial machine shops.