EN ISO 2179:2016

SLOVENSKI STANDARD
01-julij-2016
Elektrolitske prevleke iz kositer-nikljevih zlitin - Specifikacija in preskusne metode
(ISO 2179:1986)
Electroplated coatings of tin-nickel alloy - Specification and test methods (ISO
2179:1986)
Elektrolytisch hergestellte Überzüge aus einer Zinn-Nickel-Legierung - Anforderungen
und Prüfverfahren (ISO 2179:1986)
Dépôts électrolytiques d'alliage étain-nickel - Spécifications et méthodes d'essai (ISO
2179:1986)
Ta slovenski standard je istoveten z: EN ISO 2179:2016
ICS:
25.220.40 Kovinske prevleke Metallic coatings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 2179
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2016
EUROPÄISCHE NORM
ICS 25.220.40
English Version
Electroplated coatings of tin-nickel alloy - Specification
and test methods (ISO 2179:1986)
Dépôts électrolytiques d'alliage étain-nickel - Elektrolytisch hergestellte Überzüge aus einer Zinn-
Spécifications et méthodes d'essai (ISO 2179:1986) Nickel-Legierung - Anforderungen und Prüfverfahren
(ISO 2179:1986)
This European Standard was approved by CEN on 2 April 2016.

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, 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
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2179:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 2179:1986 has been prepared by Technical Committee ISO/TC 107 “Metallic and other
inorganic coatings” of the International Organization for Standardization (ISO) and has been taken over
as EN ISO 2179:2016 by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the
secretariat of which is held by BSI.
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 October 2016, and conflicting national standards shall
be withdrawn at the latest by October 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 2179:1986 has been approved by CEN as EN ISO 2179:2016 without any modification.

International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME)I(LZYHAPOCIHAf OPrAHM3AWR fl0 CTAHflAPTM3ALWWORGANISATION INTERNATIONALE DE NORMALISATION
Electroplated coatings of tin-nicke1 alloy - Specification
and test methods
ObpOts &ectrolytiques d’aliage 6 tain-nicke/ - Spbfications et m&hodes d’essai
Second edition - 1986-12-15
Ref. No. ISO 2179-1986 (EI
U DC 669.65’24.87
classifications, specifications, tests, determination,
Descriptors : metal coatings, electrodeposited coatings, tin coatings, nicke1 coating,
thickness.
Price based on 6 pages
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards bodies (ISO member bedies). The work of preparing International
Standards is normally carried out through ISO technical committees. Esch member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take patt in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 2179 was prepared Technica Committee ISO/TC 107,
bY
Metallic and o ther non-organic cos tings.
This second edition cancels and replaces the first edition (ISO 217949721, of which it
constitutes a technical revision.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organkation for Standardkation, 1986
Printed in Switzerland
ISO 21794986 (E)
INTERNATIONAL STANDARD
lated coatings of tin-nicke1 alloy - Specification
2 Ref erences
0 Introduction
ISO 1462, Metallic coatings - Coa tings o ther than those
This International Standard specifies requirements for elec-
anodic to the basis metal - Accelerated corrosion tests -
troplated coatings of the intermetallic compound SnNi of the
Method for the evaluation of the results.
approximate composition 65 % (mlm) tin and 35 % (mlm)
nickel. Such coatings are generally recognized as being hard,
ISO 1463, Metallic and Oxide coatings - Measurement of
wear-resistant and corrosion resistant.
coating thickness - Microscopical method .
The coatings are intended for use on both ferrous and non-
ISO 2664, Metallic and o ther non-organic coatings - Defi-
ferrous basis metals and also on printed circuit boards. A
nitions and conventions concerning the measurement of
classification scheme is included by which the nature of the
thickness.
basis metal and undercoat, if any, and the coating thickness
tan be defined.
ISO 2177, Metallic coatings - Measurement of coating
thickness - Coulometric method by anodic dissolution.
Annex B gives additional information as guidance to the User.
I S 0 2819, Metallic cos tings on metallic Substrates - Elec-
trodeposited and chemically deposited cos tings - Review of
It is essential that the gurckaser s&suld state the infor-
methods available for testing adhesion.
mation itemized in 4.1 and, if appropriate, 4.2. Specifying
%SO 2179 withaut this information is insufficient.
ISO 2859, Sampling procedures and tables for inspection by at-
tribu tes. 2,
ISO 3497, Metallic coatings - Measurements of coating
1 Scspe and field of application
thickness - X-ray spectrometric methods.
This International Standard specifies requirements for elec-
I S 0 3543, Metallic and non-metallic cos tings - Measuremen ts
troplated coatings of the intermetallic compound SnNi, with a
of thickness - Beta backscatter method.
composition of approximately 65 % (mlm) tin and 35 % (mlm)
nickel.
I S 0 4519, Electrodeposited metallic coatings and rela ted
finishes - Sampling procedures for inspection by attributes.
lt does not apply to
ISO 6988, Metallic and other non-organic coatings - Sulfur
a) threaded components ;
dioxide fest with general condensation of moisture.
b) coatings on sheet, Strip or wire in the unfabricated
form, or on articles made from them;
3 Definition
6) coatings on coil springs;
significant surface: The part of the article covered or to be
covered by the coating and for which the coating is essential
d) electroplating of steels with tensile strength greater
for serviceability and/or appearance.
than 1 000 MPal) (or of corresponding hardness), because
(Definition taken from ISO 2664.)
such steels are subject to hydrogen embrittlement (sec 8.2).
1) lMPa=lN/mm2
2) At present at the Stage of draft.

ISO 21794986 (EI
3: severe - for example Service outdoors in typical
4 Information to be supplied by the purchaser
temperate cond itions
to the electroplater
2: moderate - for example Service indoors
with some
4.1 Essential information
condensation
The following informatio n be supplied purchaser
by the to 1 : mild - for example Service indoors in dry atmospheres.
the electroplater :
NOTE - See 10.2, which gives guidance on the relation between ser-
the number of this International Standard; vice condition number and minimum thickness.
a)
the nature of the basis material (sec clause 5);
b)
When specifying the Service condition number or coating classification
Code, it should be noted that tin-nicke1 alloy is brittle and liable to
c) the Service condition number (sec 7.1 assif i-
) or the cl
darnage by impact. See also annex B.
cation code of the coating required (sec 7.
2) ;
d) the significant surface of the article to be electroplated
7.2 Coating classif ication code
indicated, for example, by drawings or by the Provision of
suitably marked samples;
The coating classification code shall consist of three Parts, the
the sampling procedure to be adopted (sec clause 6) ; first two of which shall be separated by an oblique stroke, as
e)
follows :
f) the positions where unavoidable marks and
contact
other defects are acceptable (sec 10.1
alb c
the method of adhesion testing to be used (see 10.3).
9)
where
4.2 Additional information
indicates the Chemical for the (or for
a Symbol metal
the main constituent if an alloy) ;
nformation may be required and, if so,
The following additional i
shall be specified by the purchaser :
b indicates the Chemical Symbol for the undercoat metal
(or for the main constituent if an alloy) followed by a figure
a) any heat treatment required (see clause 8);
for its minimum thickness, in micrometres, and is omitted if
b) any requirements for porosity testing (sec 10.4);
no undercoat is required [see 4.2 CH;
c) any special requirements for undercoats (sec clause 9) ;
c indicates the Chemical Symbol, SnN followed by a
d) a Sample showing the required finish (see 10.1) ; figure for its mini mum coating thickness, In micrometres.
e) any special pretreatment required ;
An example is
f) any special packaging requirements for plated com-
ponents.
Fe/Cu 2,5 SnNi IO
which represents an iron or steel basis metal, with a 2,5 Pm
5 Basis material topper undercoat, tin-nicke1 electroplated to a thickness of
10 Pm.
This International Standard specifies no requirements for the
condition, finish or surface roughness of the basis material Prior
to electroplating (sec B .2.1).
8 Heat treatment of steel
8.1 Stress relief before electroplating
6 Sampling
Severely cold-worked steel Parts shall be stress rel
...