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Hardness Conversion Charts

The requirement to convert from one hardness test scale to another is common practice and is covered by various International Standards (ASTM E140, ISO 18265). These standards state that, due to the differences in various types of hardness test methods, it is not possible to show a constant relationship across all materials. As such, the standards provide approximate conversions tables according to material type and it is essential to use the correct one.

 

Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Sceleroscope Hardnnes and Leeb Hardness.

Equations that were generated from the specific hardness numbers can be found ASTM Standard E140-12b www.asminternationa.gv

 

pdf for download

 

Approximate Hardness Conversion Chart for Nickel and High-Nickel Alloys
Approximate Hardness Conversion Chart for Non-Austenitic Steels (Rockwell B Range)
Approximate Hardness Conversion Chart for Non-Austenitic Steels (Rockwell C Hardness Range)
Approximate Hardness Conversion Chart for Cartridge Brass (70% Copper 30% Zinc Alloy)
Approximate Brinell-Rockwell B Hardness Conversion Chart for Austenitic Stainless Steel Plate in Annealed Condition
Approximate Conversion Chart Rockwell Hardness for Austenitic Stainless Steel Sheet
Approximate Hardness Conversion Chart for Copper No. 102 to 142 Inclusive
Approximate Hardness Conversion Charts for Alloyed White Irins and Wrought Aluminum Products
Approximate Leeb (Type D) Hardness Conversion Charts For Non-Austenitic Steels (Rckwell C Hardness Range)