EN ISO 16859-1:2015
(Main)Metallic materials - Leeb hardness test - Part 1: Test method (ISO 16859-1:2015)
Metallic materials - Leeb hardness test - Part 1: Test method (ISO 16859-1:2015)
ISO 16859-1:2015 covers the determination of a dynamic hardness of metallic materials using seven different Leeb scales (HLD, HLS, HLE, HLDL, HLD+15, HLC, HLG).
Metallische Werkstoffe - Härteprüfung nach Leeb - Teil 1: Prüfverfahren (ISO 16859-1:2015)
Diese Norm legt die Bestimmung der Leeb-Härte von metallischen Werkstoffen unter Verwendung von sechs verschiedenen Leeb-Skalen (HLD, HLS, HLE, HLDL, HLD15, HLC, HLG) fest.
Matériaux métalliques - Essai de dureté Leeb - Partie 1 : Méthode d'essai (ISO 16859-1:2015)
L'ISO 16859-1:2015 couvre la détermination de la dureté Leeb des matériaux métalliques au moyen de sept échelles Leeb différentes (HLD, HLS, HLE, HLDL, HLD+15, HLC, HLG).
Kovinski materiali - Preskus trdote po Leebu - 1. del: Preskusna metoda (ISO 16859-1:2015)
Ta standard zajema ugotavljanje trdote kovinskih materialov po Leebu s šestimi različnimi lestvicami po Leebu (HLD, HLS, HLE, HLDL, HLC, HLG).
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2016
Kovinski materiali - Preskus trdote po Leebu - 1. del: Preskusna metoda (ISO
16859-1:2015)
Metallic materials - Leeb hardness test - Part 1: Test method (ISO 16859-1:2015)
Metallische Werkstoffe - Härteprüfung nach Leeb - Teil 1: Prüfverfahren (ISO 16859-
1:2015)
Matériaux métalliques - Essai de dureté Leeb - Partie 1: Méthode d'essai (ISO 16859-
1:2015)
Ta slovenski standard je istoveten z: EN ISO 16859-1:2015
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 16859-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2015
EUROPÄISCHE NORM
ICS 77.040.10
English Version
Metallic materials - Leeb hardness test - Part 1: Test
method (ISO 16859-1:2015)
Matériaux métalliques - Essai de dureté Leeb - Partie 1 Metallische Werkstoffe - Härteprüfung nach Leeb - Teil
: Méthode d'essai (ISO 16859-1:2015) 1: Prüfverfahren (ISO 16859-1:2015)
This European Standard was approved by CEN on 10 July 2015.
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,
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United Kingdom.
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COMITÉ EUROPÉEN DE NORMALISATION
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CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16859-1:2015 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 16859-1:2015) has been prepared by Technical Committee ISO/TC 164
“Mechanical testing of metals” in collaboration with Technical Committee ECISS/TC 101 “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 2016, and conflicting national standards shall be
withdrawn at the latest by April 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 16859-1:2015 has been approved by CEN as EN ISO 16859-1:2015 without any
modification.
INTERNATIONAL ISO
STANDARD 16859-1
First edition
2015-09-15
Metallic materials — Leeb hardness
test —
Part 1:
Test method
Matériaux métalliques — Essai de dureté Leeb —
Partie 1: Méthode d’essai
Reference number
ISO 16859-1:2015(E)
©
ISO 2015
ISO 16859-1:2015(E)
© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved
ISO 16859-1:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Symbols, abbreviated terms, and designations . 1
5 Testing instrument . 3
6 Test piece . 3
6.1 Shape . 3
6.2 Thickness and mass . 3
6.3 Surface preparation . 4
7 Procedure. 4
8 Uncertainty of the results . 6
9 Test report . 6
10 Conversions to other hardness scales or tensile strength values .6
Annex A (normative) Tables of correction factors for use in tests not conducted in direction
of gravity . 7
Annex B (normative) Procedure for periodic checking of testing instrument by the user .11
Annex C (informative) Uncertainty of the measured Leeb hardness values .12
Annex D (informative) Leeb hardness testing instruments .18
Bibliography .20
ISO 16859-1:2015(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
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electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
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For an explanation on the meaning of ISO specific terms and expressions related to conformity
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Barriers to Trade (TBT) see the following URL: Foreword - Supplementary Information
The committee responsible for this document is ISO/TC 164, Mechanical testing of metals, Subcommittee
SC 3, Hardness testing.
ISO 16859 consists of the following parts, under the general title Metallic materials — Leeb hardness test:
— Part 1: Test method
— Part 2: Verification and calibration of the testing devices
— Part 3: Calibration of reference test blocks
iv © ISO 2015 – All rights reserved
INTERNATIONAL STANDARD ISO 16859-1:2015(E)
Metallic materials — Leeb hardness test —
Part 1:
Test method
1 Scope
This part of ISO 16859 covers the determination of a dynamic hardness of metallic materials using
seven different Leeb scales (HLD, HLS, HLE, HLDL, HLD+15, HLC, HLG).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 16859-2, Metallic materials — Leeb hardness test — Part 2: Verification and calibration of the
testing devices
ISO 16859-3, Metallic materials — Leeb hardness test — Part 3: Calibration of reference test blocks
3 Principle
When testing hardness according to Leeb, a moving impact body collides at normal incidence with a
surface and rebounds. The velocity of the impact body is measured before (v ) and after impact (v ).
A R
The energy amount absorbed by the test piece respectively dissipated in the test measures the dynamic
Leeb hardness of the test piece. It is assumed that the impact body does not permanently deform.
The ratio of the impact and rebound velocity values gives the coefficient of restitution for the impact
configuration and energy used. This coefficient represents the proportion of initial kinetic energy
returned to the impact body within the contact time of the impact.
The hardness number according to Leeb, HL, is calculated as given in Formula (1)
v
R
HL=⋅1 000 (1)
v
A
where
v is rebound velocity;
R
v is impact velocity.
A
By definition, the Leeb hardness is a ratio and thus becomes a quantity without dimensions.
4 Symbols, abbreviated terms, and designations
4.1 For most common Leeb scale and type of impact devices, see Table 1.
NOTE Other parameter values can be used based on the specific agreement between the parties.
ISO 16859-1:2015(E)
Table 1 — Symbols, dimensions, designations, and parameters of Leeb scales according to type
of impact devices
Parameters of types of impact devices
Symbol Unit Designation
a
D S E DL D+15 C G
E mJ Kinetic 11,5 11,4 11,5 11,95 11,2 3,0 90,0
A
impact
b
energy
v m/s Impact 2,05 2,05 2,05 1,82 1,7 1,4 3,0
A
velocity
v m/s Rebound 0,615 - 0,82 - 0,615 - 1,1092 - 0,561 - 0,49 - 0,9 - 2,25
R
velocity 1,824 5 1,886 1,886 1,729 1,513 1,344
mm Maximum 2,00 2,00 2,00 2,00 2,00 2,00 3,00
distance of
ball indenter
from test
piece surface
at velocity
measurement
M g Mass of 5,45 5,40 5,45 7,25 7,75 3,1 20,0
impact body
incl. ball
indenter
R mm Spherical 1,
...
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