10 23 add

Alloyed & Plain Carbon Steel

Approximate Hardness Conversion Numbers for Non-Austenitic Steels

(Rockwell C Hardness Range)

HR = Hardness Rockwell

HV = Hardness Vickers

HK= Hardness Knoop

JGS Steel Hardness Conversion 1

There are NO perfect analytic conversions between hardness measures. Indentation hardness measurements are not a single fundamental property but a combination of properties, which vary with each type of test. The modulus of elasticity and the depth of indentation influence conversions. Therefore, separate conversion tables or corrections through learned experience may be neccessary for different materials and their conditions.

 

 

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