DIN Standards Committee Materials Testing
Metallic materials - Rockwell hardness test - Part 2: Verification and calibration of testing machines and indenters (ISO 6508-2:2023); German version EN ISO 6508-2:2023
Abstract
This document specifies two separate methods of verification of testing machines (direct and indirect) for determining Rockwell hardness in accordance with ISO 6508-1, together with a method for verifying Rockwell hardness indenters. The direct verification method is used to determine whether the main parameters associated with the machine function, such as applied force, depth measurement, and testing cycle timing, fall within specified tolerances. The indirect verification method uses a number of calibrated reference hardness blocks to determine how well the machine can measure a material of known hardness. This document is applicable to stationary and portable hardness testing machines. Attention is drawn to the fact that the use of tungsten carbide composite for ball indenters is considered to be the standard type of Rockwell indenter ball.
Begin
2021-10-19
WI
EC101191
Planned document number
DIN EN ISO 6508-2
Project number
06236241
Responsible national committee
NA 062-01-41 AA - Hardness testing for metals
Responsible european committee
CEN/TC 459/SC 1 - Test methods for steel (other than chemical analysis)
Responsible international committee
draft standard
Metallic materials - Rockwell hardness test - Part 2: Verification and calibration of testing machines and indenters (ISO/DIS 6508-2:2022); German and English version prEN ISO 6508-2:2022
2022-12
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