Hard facts

Theory of hardness testing

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Hardness testing of metals is performed in accordance with the following common static methods that are defined in the standards listed below (ISO vs. ASTM).

 

Test methods

ISO

ASTM

Brinell

ISO 6506

ASTM E10

Vickers

ISO 6507

ASTM E92, ASTM E384

Rockwell

ISO 6508

DIN 50103

ASTM E18

 

Knoop

ISO 4545

ASTM E92, ASTM E384