EN ISO 4545-1:2023
(Main)Metallic materials - Knoop hardness test - Part 1: Test method (ISO 4545-1:2023)
Metallic materials - Knoop hardness test - Part 1: Test method (ISO 4545-1:2023)
ISO 4545-1:2017 specifies the Knoop hardness test method for metallic materials for test forces from 0,009 807 N to 19,613 N.
The Knoop hardness test is specified in this document for lengths of indentation diagonals ≥0,020 mm. Using this method to determine Knoop hardness from smaller indentations is outside the scope of this document as results would suffer from large uncertainties due to the limitations of optical measurement and imperfections in tip geometry. ISO 14577-1 allows the determination of hardness from smaller indentations.
A periodic verification method is specified for routine checking of the testing machine in service by the user.
Special considerations for Knoop testing of metallic coatings can be found in ISO 4516.
Metallische Werkstoffe - Härteprüfung nach Knoop - Teil 1: Prüfverfahren (ISO 4545-1:2023)
Dieses Dokument legt das Verfahren für die Härteprüfung nach Knoop an metallischen Werkstoffen für Prüfkräfte von 0,009 807 N bis 19,613 N fest.
Dieses Dokument legt die Härteprüfung nach Knoop für die Länge der langen Diagonale ≥ 0,020 mm fest. Die Verwendung dieses Verfahrens zur Bestimmung der Knoop-Härte für kleinere Eindrücke gehört nicht zum Anwendungsbereich dieses Dokuments, weil die Resultate aufgrund von Grenzen der optischen Messung und Unvollkommenheiten der Geometrie der Spitze mit großer Unsicherheit behaftet wären.
Die in diesem Dokument festgelegte Härteprüfung nach Knoop ist auch für metallische und andere anorganische Schichten, einschließlich Schichten durch elektrolytische Metallabscheidung, Schichten durch autokatalytische Metallabscheidung, gespritzter Schichten und anodischer Schichten auf Aluminium, anwendbar. Dieses Dokument ist anwendbar auf Messungen senkrecht zur beschichteten Oberfläche und auf Messungen an Querschnitten, sofern die Eigenschaften der Schicht (Glätte, Dicke usw.) genaue Ablesewerte der Diagonale des Eindrucks ermöglichen. Dieses Dokument ist nicht anwendbar für Schichten mit einer Dicke von weniger als 0,007 mm, wenn die Prüfung senkrecht zur Oberfläche der Schicht erfolgt. Dieses Dokument ist nicht anwendbar für Schichten mit einer Dicke von weniger als 0,020 mm, wenn ein Schichtquerschnitt geprüft wird. ISO 14577 1 kann zur Härte-Bestimmung von kleineren Eindrücken angewendet werden.
Zur laufenden Kontrolle der im Betrieb befindlichen Prüfmaschine durch den Anwender ist ein Verfahren zur regelmäßigen Überprüfung festgelegt.
Matériaux métalliques - Essai de dureté Knoop - Partie 1: Méthode d'essai (ISO 4545-1:2023)
ISO 4545-1:2017 spécifie la méthode d'essai de dureté Knoop pour les matériaux métalliques, pour des forces d'essai comprises entre 0,009 807 N et 19,613 N.
Le présent document spécifie l'essai de dureté Knoop pour les longueurs de diagonale d'empreinte ≥ 0,020 mm. L'utilisation de cette méthode pour déterminer la dureté Knoop d'empreintes plus petites ne fait pas partie du domaine d'application du présent document, car les résultats ainsi obtenus présenteraient des incertitudes élevées en raison des limitations du mesurage optique et des imperfections concernant la géométrie de la pointe. L'ISO 14577‑1 permet de déterminer la dureté des empreintes plus petites.
Une méthode de vérification périodique est spécifiée pour la vérification de routine, par l'utilisateur, de la machine d'essai utilisée.
Des considérations particulières pour les essais Knoop des revêtements métalliques sont disponibles dans l'ISO 4516.
Kovinski materiali - Preskus trdote po Knoopu - 1. del: Preskusna metoda (ISO 4545-1:2023)
Standard ISO 4545-1:2017 določa metodo za preskus trdote po Knoopu za kovinske materiale s preskusnimi silami od 0,009 807 N do 19,613 N.
Preskus trdote po Knoopu je v tem dokumentu določen za dolžine diagonal zarez ≥ 0,020 mm. Uporaba te metode za določanje trdote po Knoopu na podlagi manjših zarez ne sodi v področje uporabe tega dokumenta, saj bi bili rezultati nezanesljivi zaradi negotovosti, povezane z omejitvami optičnega merjenja in nepravilnostmi geometrije konice. Določevanje trdote na podlagi manjših zarez omogoča standard ISO 14577-1.
Določena je tudi metoda za redno preverjanje pri rutinskem pregledovanju naprave za preskušanje, ki jo uporablja uporabnik.
Posebne zahteve za preskušanje kovinskih prevlek so navedene v standardu ISO 4516.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2023
Kovinski materiali - Preskus trdote po Knoopu - 1. del: Preskusna metoda (ISO
4545-1:2023)
Metallic materials - Knoop hardness test - Part 1: Test method (ISO 4545-1:2023)
Metallische Werkstoffe – Härteprüfung nach Knoop – Teil1: Prüfverfahren (ISO 4545-
1:2023)
Matériaux métalliques - Essai de dureté Knoop - Partie 1: Méthode d'essai (ISO 4545-
1:2023)
Ta slovenski standard je istoveten z: EN ISO 4545-1:2023
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 4545-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2023
EUROPÄISCHE NORM
ICS 77.040.10 Supersedes EN ISO 4545-1:2018
English Version
Metallic materials - Knoop hardness test - Part 1: Test
method (ISO 4545-1:2023)
Matériaux métalliques - Essai de dureté Knoop - Partie Metallische Werkstoffe - Härteprüfung nach Knoop -
1: Méthode d'essai (ISO 4545-1:2023) Teil 1: Prüfverfahren (ISO 4545-1:2023)
This European Standard was approved by CEN on 9 September 2023.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4545-1:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4545-1:2023) has been prepared by Technical Committee ISO/TC 164
"Mechanical testing of metals" in collaboration with Technical Committee CEN/TC 459/SC 1 “Test
methods for steel (other than chemical analysis)” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2024, and conflicting national standards shall be
withdrawn at the latest by April 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 4545-1:2018.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 4545-1 has been approved by CEN as EN ISO 4545-1:2023 without any modification.
INTERNATIONAL ISO
STANDARD 4545-1
Third edition
2023-10
Metallic materials — Knoop hardness
test —
Part 1:
Test method
Matériaux métalliques — Essai de dureté Knoop —
Partie 1: Méthode d'essai
Reference number
ISO 4545-1:2023(E)
ISO 4545-1:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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Published in Switzerland
ii
ISO 4545-1:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and designations . 2
4.1 Symbols and designations used in this document . 2
4.2 Designation of hardness number . 2
5 Principle . 3
6 Testing machine.3
6.1 Testing machine . 3
6.2 Indenter . . . 3
6.3 Diagonal measuring system . 3
7 Test piece . 4
7.1 Test surface . 4
7.2 Preparation . 4
7.3 Thickness . 4
7.4 Support of unstable test pieces . 4
7.5 Metallic and other inorganic coatings . 4
8 Procedure .5
8.1 Test temperature . 5
8.2 Test force . . 5
8.3 Periodic verification . 5
8.4 Test piece support . 5
8.5 Focus on test surface . 5
8.6 Test force application . 6
8.7 Prevention of the effect of shock or vibration . 6
8.8 Minimum distance between adjacent indentations . 6
8.9 Measurement of diagonal length . 7
8.10 Calculation of hardness value . 7
9 Uncertainty of the results . 7
10 Test report . 8
Annex A (normative) Procedure for periodic checking of the testing machine, diagonal
measuring system and the indenter by the user . 9
Annex B (informative) Uncertainty of the measured hardness values .11
Annex C (informative) Knoop hardness measurement traceability .18
Annex D (informative) CCM — Working group on hardness .22
Annex E (informative) Adjustment of Köhler illumination systems .23
Annex F (normative) Determining the Knoop hardness of metallic and other inorganic
coatings .24
Bibliography .28
iii
ISO 4545-1:2023(E)
Foreword
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