EN ISO 9453:2014

SLOVENSKI STANDARD
01-oktober-2014
1DGRPHãþD
SIST EN ISO 9453:2007
Mehke spajke - Kemijska sestava in oblike (ISO 9453:2014)
Soft solder alloys - Chemical compositions and forms (ISO 9453:2014)
Weichlote - Chemische Zusammensetzung und Lieferformen (ISO 9453:2014)
Alliages de brasage tendre - Compositions chimiques et formes (ISO 9453:2014)
Ta slovenski standard je istoveten z: EN ISO 9453:2014
ICS:
25.160.50 Trdo in mehko lotanje Brazing and soldering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 9453
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2014
ICS 25.160.50 Supersedes EN ISO 9453:2006
English Version
Soft solder alloys - Chemical compositions and forms (ISO
9453:2014)
Alliages de brasage tendre - Compositions chimiques et Weichlote - Chemische Zusammensetzung und
formes (ISO 9453:2014) Lieferformen (ISO 9453:2014)
This European Standard was approved by CEN on 10 July 2014.

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
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9453:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 9453:2014) has been prepared by Technical Committee ISO/TC 44 “Welding and
allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding” the secretariat of which is
held by DIN.
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 February 2015, and conflicting national standards shall be withdrawn
at the latest by February 2015.
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.
This document supersedes EN ISO 9453:2006.
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 9453:2014 has been approved by CEN as EN ISO 9453:2014 without any modification.
INTERNATIONAL ISO
STANDARD 9453
Third edition
2014-08-01
Soft solder alloys — Chemical
compositions and forms
Alliages de brasage tendre — Compositions chimiques et formes
Reference number
ISO 9453:2014(E)
©
ISO 2014
ISO 9453:2014(E)
© ISO 2014
All rights reserved. Unless otherwise specified, 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 the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 9453:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Chemical composition . 1
5 Forms of delivery . 1
5.1 General . 1
5.2 Unit of product . 2
6 Sampling and analysis. 2
7 Marking, labelling and packaging . 2
Annex A (informative) Comparison between alloy numbers in ISO 9453 and short names and
chemical compositions according to IEC 61190‑1‑3 .12
Annex B (informative) Patented alloys and patent holder list .15
Bibliography .16
ISO 9453:2014(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
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
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
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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 on
the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT), see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 44, Welding, Subcommittee SC 12, Soldering
materials.
This third edition cancels and replaces the second edition (ISO 9453:2006), which has been technically
revised.
Request for an official interpretation of technical aspects of this International Standard should be
directed to the relevant secretariat of ISO/TC 44/SC 12 “Soldering materials” via the user’s national
standardization body; a listing of these bodies can be found at: http://www.iso.org.
iv © ISO 2014 – All rights reserved

ISO 9453:2014(E)
Introduction
The International Organization for Standardization (ISO) draws attention to the fact that it is claimed that
compliance with this document may involve the use of patents concerning soft solder alloy compositions
given in Table 3.
ISO takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has ensured the ISO that he/she is willing to negotiate licences either
free of charge or under reasonable and non-discriminatory terms and conditions with applicants
throughout the world. In this respect, the statement of the holder of this patent right is registered with
ISO. Information may be obtained from Annex B.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those identified above. ISO shall not be held responsible for identifying any or
all such patent rights.
ISO (www.iso.org/patents) maintains online databases of patents relevant to their standards. Users are
encouraged to consult the databases for the most up to date information concerning patents.
INTERNATIONAL STANDARD ISO 9453:2014(E)
Soft solder alloys — Chemical compositions and forms
1 Scope
WARNING — National or regional regulations may limit the employment of certain alloys.
This International Standard specifies the requirements for chemical composition for soft solder alloys
containing two or more of tin, lead, antimony, copper, silver, bismuth, zinc, indium and/or cadmium.
An indication of the forms generally available is also included.
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 3677, Filler metal for soft soldering, brazing and braze welding — Designation
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
soft solder
metallic filler material which is used to join metallic parts and which has a melting temperature
(liquidus) lower than that of the parts to be joined and, usually, lower than 450 °C and which wets the
parent metals
3.2
batch
collection of one or more units of product, made in a single production operation
4 Chemical composition
The chemical composition of the soft solder, sampled and analysed in accordance with Clause 6, shall be
as given for the appropriate material in Table 1 or Table 2.
5 Forms of delivery
5.1 General
Soft solders conforming to this International Standard shall be supplied in one of the following forms:
ingot, slab, stick, bar, rod, wire, pellets, preforms, rings, spheres, ribbons, powder or soldering pastes.
Solder shall be uniform in quality and free from detrimental conditions such as contamination or surface
oxide that prevent melting and flow in a manner suitable for the intended application.
NOTE 1 Solders supplied in the form of rod, wire, or preforms can be supplied with or without an integral flux,
subject to agreement between the supplier and the purchaser.
NOTE 2 Not all the solder compositions given in the tables are necessarily available in all the product forms
listed.
ISO 9453:2014(E)
5.2 Unit of product
The unit of product used for defining the requirements for the marking of soft solders varies with the
form of the solder.
NOTE See Table 1.
Table 1 — Variations of unit of product with form of solder
Form of solder Unit of product
Ingot, bar, slab, stick or rod A single ingot, bar, slab, stick or rod
Wire or ribbon A single coil or reel
Preforms and rings, spheres, pellets or powder The individual packaged quantity
Powder in soldering pastes The individual packaged quantity
6 Sampling and analysis
Pending the publication of International Standards for sampling and for methods of analysis for soft
solder alloys, the methods used shall, in cases of dispute, be agreed between the supplier and the
purchaser.
NOTE Preferred analysis methods are Spark-OES and AAS.
7 Marking, labelling and packaging
Each batch of solder supplied in accordance with this International Standard shall be marked with the
information indicated by a cross in Table 4.
The information in Table 4 shall be applied to the product forms as follows:
a) for ingots and slabs: by stamping, or inkjet marking on the surface of each unit of product;
b) for sticks, bars, rods and wire in coil: either on a label securely attached to each unit of product, or
on a label on the package in which the units of product are contained;
c) for wire or ribbon on reels: on a label on each reel;
d) for pellets, preforms, spheres, powder, soldering paste: on a label on each individually packaged
quantity.
All product forms shall also be labelled with any health and safety warnings required by the relevant
rules and regulations of the country of manufacture, or as specified in the order.
2 © ISO 2014 – All rights reserved

ISO 9453:2014(E)
Table 2 — Chemical compositions of lead containing solder alloys
(tin‑lead, lead‑tin, tin‑lead‑antimony, tin‑lead‑bismuth, tin‑lead‑cadmium, tin‑lead‑copper, tin‑lead‑silver, and lead‑silver)
d,e
Group Alloy Alloy Designa‑ Melting or soli‑ Chemical composition, mass fraction in %
a
No. tion according dus/liquidus
Sn Pb Sb Bi Cd Cu Au In Ag Al As Fe Ni Zn
b c
to ISO 3677 temperature °C
101 Sn63Pb37 183 62,5 to 63,5 Rem 0,20 0,10 0,002 0,08 0,05 0,10 0,10 0,001 0,03 0,02 0,01 0,001
Tin-lead binary
102 Sn63Pb37E 183 62,5 to 63,5 Rem 0,05 0,05 0,002 0,08 0,05 0,10 0,10 0,001 0,03 0,02 0,01 0,001
alloys solidus
temperature
103 Sn60Pb40 183/190 59,5 to 60,5 Rem 0,20 0,10 0,002 0,08 0,05 0,10 0,10 0,001 0,03 0,02 0,01 0,001
183 °C
104 Sn60Pb40E 183/190 59,5 to 60,5 Rem 0,05 0,05 0,002 0,08 0,05 0,10 0,10 0,001 0,03 0,02 0,01 0,001
111 Pb50Sn50 183/215 49,5 to 50,5 Rem 0,20 0,10 0,002 0,08 0,05 0,10 0,10 0,001 0,03 0,02 0,01 0,001
112 Pb50Sn50E 183/215 49,5 to 50,5 Rem 0,05 0,05 0,002 0,08 0,05 0,10 0,10 0,001 0,03 0,02 0,01 0,001
Lead-tin binary 113 Pb55Sn45 183/226 44,5 to 45,5 Rem 0,50 0,25 0,005 0,08
...