How are hardness and tensile strength related?

Answer 1

There are tables that give you the Tensile Strength based on a Rockwell Hardness test of a specimen of metal.

For example: Rc of 54 is a Steel of TSU = 300,000 psi.

Google the internet for Rockwell Hardness Table.

Answer 2

Specific Tensile strength is the maximum stress that a specific metal can undergo without elastic or plastic deformation occurring, Hardness is the inherent ability of a specific metal to withstand wear or stress....