NF EN ISO 18265

NF EN ISO 18265

December 2013
Standard Current

Metallic materials - Conversion of hardness values

ISO 18265:2013 specifies the principles of the conversion of hardness values to equivalent values in other hardness scales and to estimates of tensile strength. It gives general information on the use of the conversion tables. The conversion tables in Annexes A to G apply to unalloyed and low alloy steels and cast steel, steels for quenching and tempering, steels for cold working, high speed steels, tool steels, hardmetals, and non-ferrous metals and alloys. Annex H gives information about the effects of changes of the test procedure in the standards specifying the hardness tests. Converted values obtained using ISO 18265:2013 are only directly applicable to the exact material tested. For all other materials, they provide an indicator only. In all cases, the converted values are not intended as replacements for values obtained by the correct standard method. In particular, tensile strength estimates are the least reliable converted values in ISO 18265:2013.

Main informations

Collections

National standards and national normative documents

Publication date

December 2013

Number of pages

96 p.

Reference

NF EN ISO 18265

ICS Codes

77.040.10   Mechanical testing of metals

Classification index

A03-172

Print number

1 - 04/12/2013

International kinship

European kinship

EN ISO 18265:2013
Sumary
Metallic materials - Conversion of hardness values

ISO 18265:2013 specifies the principles of the conversion of hardness values to equivalent values in other hardness scales and to estimates of tensile strength. It gives general information on the use of the conversion tables.

The conversion tables in Annexes A to G apply to unalloyed and low alloy steels and cast steel, steels for quenching and tempering, steels for cold working, high speed steels, tool steels, hardmetals, and non-ferrous metals and alloys.

Annex H gives information about the effects of changes of the test procedure in the standards specifying the hardness tests.

Converted values obtained using ISO 18265:2013 are only directly applicable to the exact material tested. For all other materials, they provide an indicator only. In all cases, the converted values are not intended as replacements for values obtained by the correct standard method. In particular, tensile strength estimates are the least reliable converted values in ISO 18265:2013.

Replaced standards (1)
NF EN ISO 18265
June 2004
Standard Cancelled
Metallic materials - Conversion of hardness values

<p>ISO 18265:2003 specifies the principles of the conversion of hardness values and gives general information on the use of conversion tables.</p> <p>The conversion tables apply to</p> <ul><li>unalloyed and low-alloy steels and cast iron;</li><li>steels for quenching and tempering;</li><li>cold working steels;</li><li>high speed steels;</li><li>hardmetals;</li><li>non-ferrous metals and alloys.</li></ul>

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Principes de conversion
    1
  • 3 Application des tables de conversion
    4
  • 3.1 Généralités
    4
  • 3.2 Conversion des valeurs
    7
  • 3.3 Expression des résultats de conversion
    9
  • 3.4 Indications sur l'utilisation des tables de conversion
    10
  • Annexe A (informative) Table de conversion pour des aciers non alliés et faiblement alliés et des aciers moulés
    12
  • Annexe B (informative) Tables de conversion relatives aux aciers pour trempe et revenu
    18
  • Annexe C (informative) Tables de conversion pour les aciers pour formage à froid
    36
  • Annexe D (informative) Tables de conversion pour les aciers rapides
    47
  • Annexe E (informative) Tables de conversion pour les métaux durs
    60
  • Annexe F (informative) Tables de conversion pour les métaux et alliages non ferreux
    64
  • Annexe G (informative) Tables de conversion pour les aciers à outils
    77
  • Annexe H (informative) Remarques sur l'effet de conditions d'essai modifiées
    81
  • Bibliographie
    85
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