[object Object]Engineering Information, Conversions and Calculations

Hardness Conversion Calculator


TO :

1) Standard Hardness Conversion for metals acc. ASTM E 140 - 97, September 1999, Conversion for Non-Austenitic Steels, Table 1.

The accuracy of the conversion depends on the accuracy of the provided data and the resulting curve-fits.

2) Indentation hardness is not a single fundamental property but a combination of properties, and varies with the type of test.

The modulus of elasticity and the depth of indentation influence conversions.

Therefore separate conversion tables are necessary for different materials.

3) Brinell Hardness numbers in parentheses are outside the range (HB>630).

This limit is set to avoid errors introduced by the deformation of the ball indenter itself.

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