NA 062

DIN Standards Committee Materials Testing

Project

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

ISO/TC 164/SC 3/WG 1 - Revision of the standard series ISO 6508 - Metallic materials - Rockwell hardness test  

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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previous edition(s)

Metallic materials - Rockwell hardness test - Part 2: Verification and calibration of testing machines and indenters (ISO 6508-2:2015); German version EN ISO 6508-2:2015
2015-06

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Contact

Dipl.-Ing.

Sebastian Lübbert

Am DIN-Platz, Burggrafenstr. 6
10787 Berlin

Tel.: +49 30 2601-2192
Fax: +49 30 2601-42192

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