ISO 6508-1:2015
Metallic materials — Rockwell hardness test — Part 1: Test method
ISO 6508-1:2015 specifies the method for Rockwell regular and Rockwell superficial hardness tests (scales and applicable range of application according to Table 1) for metallic materials and is applicable to stationary and portable hardness testing machines.
For specific materials and/or products, other specific International Standards apply (for instance, ISO 3738‑1 and ISO 4498).
NOTE 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. Steel indenter balls are allowed to continue to be used only when complying with Annex A.
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Foreword
1 Scope
2 Normative references
3 Principle
4 Symbols, abbreviated terms and designations
5 Testing machine
6 Test piece
7 Procedure
8 Uncertainty of the results
9 Test report
10 Conversions to other hardness scales or tensile strength values
Annex A (normative) Special HR30TSm and HR15TSm test for thin products
Annex B (normative) Minimum thickness of the test piece in relation to the Rockwell hardness
Annex C (normative) Corrections to be added to Rockwell hardness values obtained on convex cylindrical surfaces
Annex D (normative) Corrections to be added to Rockwell hardness C scale values obtained on spherical test surfaces of various diameters
Annex E (normative) Daily Verification Procedure
Annex F (normative) Inspection of diamond indenters
Annex G (informative) Uncertainty of the measured hardness values
Annex H (informative) CCM - Working Group on Hardness
Annex I (informative) Rockwell Hardness Measurement Traceability
Bibliography
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Foreword
1 Scope
2 Normative references
3 Principle
4 Symbols, abbreviated terms and designations
5 Testing machine
6 Test piece
7 Procedure
8 Uncertainty of the results
9 Test report
10 Conversions to other hardness scales or tensile strength values
Annex A (normative) Special HR30TSm and HR15TSm test for thin products
Annex B (normative) Minimum thickness of the test piece in relation to the Rockwell hardness
Annex C (normative) Corrections to be added to Rockwell hardness values obtained on convex cylindrical surfaces
Annex D (normative) Corrections to be added to Rockwell hardness C scale values obtained on spherical test surfaces of various diameters
Annex E (normative) Daily Verification Procedure
Annex F (normative) Inspection of diamond indenters
Annex G (informative) Uncertainty of the measured hardness values
Annex H (informative) CCM - Working Group on Hardness
Annex I (informative) Rockwell Hardness Measurement Traceability
Bibliography