EN ISO 17672:2010

SLOVENSKI STANDARD
01-november-2011
1DGRPHãþD
SIST EN 1044:2001
Trdo spajkanje - Dodajni materiali (ISO 17672:2010)
Brazing - Filler metals (ISO 17672:2010)
Hartlöten - Lötzusätze (ISO 17672:2010)
Brasage fort - Métaux d'apport (ISO 17672:2010)
Ta slovenski standard je istoveten z: EN ISO 17672:2010
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 17672
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2010
ICS 25.160.50 Supersedes EN 1044:1999
English Version
Brazing - Filler metals (ISO 17672:2010)
Brasage fort - Métaux d’apport (ISO 17672:2010) Hartlöten - Lote (ISO 17672:2010)
This European Standard was approved by CEN on 12 May 2010.

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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17672:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 17672:2010) 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 December 2010, and conflicting national standards shall be withdrawn
at the latest by December 2010.
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 1044:1999.
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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 17672:2010 has been approved by CEN as a EN ISO 17672:2010 without any modification.

INTERNATIONAL ISO
STANDARD 17672
First edition
2010-06-01
Brazing — Filler metals
Brasage fort — Métaux d'apport

Reference number
ISO 17672:2010(E)
©
ISO 2010
ISO 17672:2010(E)
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ii © ISO 2010 – All rights reserved

ISO 17672:2010(E)
Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Composition.1
4 Special vacuum requirement .2
5 Chemical analysis .2
6 Designation .3
7 Technical delivery conditions .3
7.1 Types of product .3
7.2 Dimensions .3
7.3 Condition.5
7.4 Marking.5
7.5 Packaging.5
7.6 Product certificates .5
8 Metal hazards.5
Annex A (normative) Codification.16
Bibliography.22

ISO 17672:2010(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 17672 was prepared by Technical Committee ISO/TC 44, Welding and allied processes.
Requests for official interpretations of any aspect of this International Standard should be directed to the
Secretariat of ISO/TC 44/WG 3 via your national standards body, a complete listing which can be found at
http://www.iso.org/.
iv © ISO 2010 – All rights reserved

INTERNATIONAL STANDARD ISO 17672:2010(E)

Brazing — Filler metals
1 Scope
This International Standard specifies the compositional ranges of a series of filler metals used for brazing. The
filler metals are divided into seven classes, related to their composition, but not necessarily to the major
element present.
NOTE 1 For the major element(s) present, see Annex A.
In the case of composite products, such as flux-coated rods, pastes or plastics tapes, this International
Standard covers only the filler metal that forms part of such products. The melting temperatures given in the
tables are only approximate, as they necessarily vary within the compositional range of the filler metal.
Therefore, they are given only for information. Technical delivery conditions are given for brazing filler metals
and products containing brazing filler metals with other constituents such as flux and/or binders.
NOTE 2 For some applications, e.g. precious metal jewellery, aerospace and dental, filler metals other than those
included in this International Standard are often used and these are covered by other International Standards to which
reference can be made.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3677:1992, Filler metal for soft soldering, brazing and braze welding — Designation
ISO 80000-1:2009, Quantities and units — Part 1: General
3 Composition
The filler metal shall have a composition in accordance with Tables 5 to 13 for the particular type, except as
modified for special vacuum requirements (see Clause 4 and Table 1).
For the purposes of determining compliance with composition limits, any value obtained from the analysis
shall be rounded to the same number of decimal places as used in this International Standard in expressing
the specified limit. The following rules shall be used for rounding.
a) When the figure immediately after the last figure to be retained is less than five, then the last figure to be
retained shall be kept unchanged.
b) When the figure immediately after the last figure to be retained is either
1) greater than five, or
2) equal to five and followed by at least one figure other than zero,
the last figure to be retained shall be increased by one.
ISO 17672:2010(E)
c) When the figure immediately after the last figure to be retained is equal to five, and followed by zeros only,
then the last figure to be retained shall be left unchanged if even, and increased by one if odd. For the
purposes of determining compliance with the requirements of this International Standard, the actual test
values obtained shall be subjected to the rounding-off instructions given in ISO 80000-1:2009, Annex B.
NOTE The chemical analysis is of the bulk material, but the material can be composed of discrete powders with
different individual compositions or multiple layers of roll-clad foils where each layer can have a different individual
composition.
4 Special vacuum requirement
In a few instances, which are most likely to apply to Ag 272, Pd 287, Pd 387, Pd 388, Pd 481, Pd 483, Pd 484,
Pd 587, Pd 647 and Au 295, Au 375, Au 625, Au 752, Au 801 and Au 827, lower impurity limits can be
required for brazing in vacuum or service in vacuum and these limits shall be as given in Table 1.
Filler metals complying with Table 1 shall have the letter V added as a suffix to the codification plus the digit 1
or 2 to indicate the grade.
NOTE Grade 1 is intended for the most demanding duties, Grade 2 for less demanding.
Table 1 — Impurity limits for special vacuum requirements
Limit (% by mass max.)
Impurity
Grade 1 Grade 2
a
C 0,005 0,005
Cd 0,001 0,002
b
P 0,002 0,002
Pb 0,002 0,002
Zn 0,001 0,002
c
Mn 0,001 0,002
c
In 0,002 0,003
All other elements where vapour
0,001 0,002
–5 d
pressure at 500 °C is > 1,3 × 10 Pa
a
For filler metal Ag 272 (see Table 6), lower levels may be available by agreement
between the purchaser and the supplier.
b
For filler metal Ag 272, 0,02 % maximum.
c
Except where otherwise specified in Tables 5 to 13.
d
Examples of such elements are Ca, Cs, K, Li, Mg, Na, Rb, S, Sb, Se, Sr, Te and Tl. For
such elements (including Cd, Pb and Zn), the total is limited to 0,010 %.

5 Chemical analysis
Chemical analyses shall be carried out by any suitable method, but it should be noted that in the case of many
brazing alloys, the use of reference standards may be essential, as agreed between the purchaser and the
supplier. Analysis is only required to be carried out routinely for those elements for which specific limits are
shown. If, however, the presence of other elements is suspected or in the course of routine analysis is
indicated to be in excess of the limits laid down for unnamed elements, or would bring the total of impurities
above the specified limit, further analyses shall be carried out for such elements.
2 © ISO 2010 – All rights reserved

ISO 17672:2010(E)
6 Designation
The filler metal shall be designated by the description “filler metal”, the number of this International Standard,
i.e. ISO 17672, and a code. Details of the two options for the code system used are given in Annex A.
As an example, the designations of an aluminium filler metal containing 11 % to 13 % Si, in accordance with
this International Standard, can be made in one of the following ways:
EXAMPLE 1 Filler metal ISO 17672-Al 112
where
“Filler metal” is the description;
“ISO 17672” is the number of this International Standard;
“Al 112” is the short code given in Tables 5 to 13.
EXAMPLE 2 Filler metal ISO 17672-B-Al88Si-575/585
where
“Filler metal” is the description;
“ISO 17672” is the number of this International Standard;
“B” denotes brazing;
“Al88Si-575/585” is the code in accordance with ISO 3677.
7 Technical delivery conditions
7.1 Types of product
The form of the material shall be agreed between the purchaser and the manufacturer/supplier at the time of
placing the order.
NOTE Brazing filler metals are available as rod, wire, foil (or preforms made from them) or powder, although not all
filler metals are necessarily available in every type of product. They are also available as a constituent of brazing pastes or,
particularly in the case of aluminium brazing filler metals, clad onto one or both sides of an alloy sheet. Rods can be
completely or partially coated with flux.
7.2 Dimensions
7.2.1 General
Dimensions and tolerances for foils (see 7.2.2), rods (see 7.2.3) and, to a lesser extent, wires (see 7.2.4) are
defined. For other forms and dimensions not listed in the respective tables, the purchaser and the
manufacturer/supplier shall agree on the dimensions and tolerances at the time of placing the order.
ISO 17672:2010(E)
7.2.2 Foils
The tolerances for thickness, width and camber are given in Tables 2, 3 and 4.
Table 2 — Thickness tolerance for foils
Thickness Limits of thickness
nominal size related to width (nominal size)
mm mm
over to over 1 mm
— 0,05 ± 10 %
0,05 0,1 ± 0,005
0,1 0,2 ± 0,010
0,2 0,3 ± 0,015
0,3 0,4 ± 0,018
0,4 0,5 ± 0,020
0,5 0,8 ± 0,025
0,8 1,2 ± 0,030
1,2 2,0 ± 0,035
Table 3 — Width tolerance for foils
Thickness Limits of width
nominal size related to width (nominal size)
mm mm
over 50 mm
over to to 50 mm Over 100 mm
to 100 mm
+2 +3 +4
— 0,1
0 0 0
+2 +3 +4
0,1 1,0
0 0 0
+3 +4 +5
1,0 2,0
0 0 0
Table 4 — Camber tolerance for foils
Thickness Max. camber for width
nominal size nominal size
mm mm/m
3 mm over 10 mm over 15 mm over 30 mm
over to over 50 mm
to 10 mm to 15 mm to 30 mm to 50 mm
— 0,5 10 7 4 3 3
0,5 2,0 15 10 6 4 4
4 © ISO 2010 – All rights reserved

ISO 17672:2010(E)
7.2.3 Rods
For rods, the preferred diameters are 1 mm, 1,5 mm, 2 mm, 2,5 mm, 3 mm and 5 mm and the preferred
lengths are 500 mm and 1 000 mm. The tolerance on diameter shall be ± 3 % for drawn rods and ± 0,3 mm
for other fabrication processes. The tolerance on length shall be ± 5 mm.
7.2.4 Wires
For wires, there are no preferred diameters and the tolerance on diameter shall be ± 3 %.
7.3 Condition
The surface of brazing filler metals shall be free from contamination which could adversely affect brazing. With
flux-coated rods, the coating shall firmly adhere to the rod and shall not break off during proper handling and
usage. Welds, when present, shall have been made so as not to interfere with uniform, uninterrupted feeding
of filler metal on automatic and semiautomatic brazing.
7.4 Marking
Since in many cases the marking of brazing filler metals themselves is impracticable, reliance shall be placed
on the marking of packets. The outside of each smallest unit package shall be clearly marked with the
following information:
a) the designation in accordance with Clause 6;
b) the name of the manufacturer/supplier;
c) the trade name (if any);
d) the quantity of material and, if applicable, the dimensions;
e) the supplier's batch number;
f) health and safety warnings (as required by national regulations).
7.5 Packaging
Brazing filler metals or products containing them shall be packed to provide sufficient safeguard against
damage and deterioration during transportation and storage.
7.6 Product certificates
If certificates (like those specified in ISO 14344) of conformity and/or analysis are required, the purchaser and
the manufacturer/supplier shall agree on the details at the time of placing the order.
8 Metal hazards
Although not directly relevant to the requirements of this International Standard, any national requirements for
limiting exposure to metal hazards, e.g. fume, should be observed. This is particularly important when using
brazing filler metals containing cadmium as an alloying element.

ISO 17672:2010(E)
6 © ISO 2010 – All rights reserved
Table 5 — Class Al: aluminium and magnesium brazing filler metals
Melting
Composition, % by mass temperature
(approximate)
Non-defined
Code
Si Fe Cu Mn Mg Zn Cd Pb Others Al
elements
Each Total Solidus Liquidus
min./max. max. min./max. max. min./max. max. max. max. min./max. max. max.
°C °C
Al-Si alloys
Al 105 4,5/6,0 0,6 —/0,30 0,15 —/0,20 0,10 0,010 0,025 Ti: —/0,15 0,05 0,15 Remainder 575 630
Al 107 6,8/8,2 0,8 —/0,25 0,10 —/— 0,20 0,010 0,025 —/— 0,05 0,15 Remainder 575 615
Al 110 9,0/11,0 0,8 —/0,30 0,05 —/0,05 0,10 0,010 0,025 Ti: —/0,20 0,05 0,15 Remainder 575 590
Al 112 11,0/13,0 0,8 —/0,30 0,15 —/0,10 0,20 0,010 0,025 —/— 0,05 0,15 Remainder 575 585
Al-Si-Cu alloys
Al 210 9,3/10,7 0,8 3,3/4,7 0,15 —/0,15 0,20 0,010 0,025 —/0,15 0,05 0,15 emainder 520 585
Cr: R
Al-Si-M alloy
g s
Al 310 9,0/10,5 0,8 —/0,25 1,0/2,0 0,20 0,010 0,025 —/— 0,05 0,15 emainder 555 590
0,10 R
Al 311 9,0/10,5 0,8 —/0,25 0,10 1,0/2,0 0,20 0,010 0,025 Bi: 0,02/0,20 0,05 0,15 Remainder 555 590
Al 315 9,5/11,0 0,8 —/0,25 0,10 0,20/1,0 0,20 0,010 0,025 —/— 0,05 0,15 Remainder 559 591
Al 317 11,0/13,0 0,8 —/0,25 0,10 0,10/0,50 0,20 0,010 0,025 —/— 0,05 0,15 Remainder 562 582
Al 319 10,5/13,0 0,8 —/0,25 1,0/2,0 0,20 0,010 0,025 —/— 0,05 0,15 emainder 559 579
0,10 R
Al-Si-Zn all
oys
Al 410 9,0/11,0 0,8 —/0,3 —/0,05 0,50/30 0,010 0,025 —/— 0,05 0,15 mainder 576 588
0,05 , Re
Al 415 10,5/13,0 0,8 —/0,25 0,10 —/— 0,50/3,0 0,010 0,025 —/— 0,05 0,15 Remainder 576 609
Mg alloys
Be:
Mg 001 0,05 0,005 0,05 0,15/1,5 Remainder 1,7/2,3 0,010 0,025 0,0002/0,0008 0,05 0,30 8,3/9,7 443 599
Ni: —/0,005
ISO 17672:2010(E)
Table 6 — Class Ag: silver brazing filler metals
Melting temperature
Composition, % by mass
(approximate)
Code
Ag Cu Zn Cd Sn Si Ni Mn Solidus Liquidus
min./max. min./max. min./max. min./max. min./max. min./max. min./max. min./max. °C °C
Ag-Cu-Zn-Sn alloys
Ag 125 24,0/26,0 39,0/41,0 31,0/35,0 —/0,010 1,5/2,5 —/0,05 —/— —/— 680 760
Ag 130 29,0/31,0 35,0/37,0 30,0/34,0 —/0,010 1,5/2,5 —/0,05 —/— —/— 665 755
Ag 134 33,0/35,0 35,0/37,0 25,5/29,5 —/0,010 2,0/3,0 —/0,05 —/— —/— 630 730
Ag 138 37,0/39,0 31,0/33,0 26,0/30,0 —/0,010 1,5/2,5 —/0,05 —/— —/— 650 720
Ag 140 39,0/41,0 29,0/31,0 26,0/30,0 —/0,010 1,5/2,5 —/0,05 —/— —/— 650 710
Ag 145 44,0/46,0 26,0/28,0 23,5/27,5 —/0,010 2,0/3,0 —/0,05 —/— —/— 640 680
Ag 155 54,0/56,0 20,0/22,0 20,0/24,0 —/0,010 1,5/2,5 —/0,05 —/— —/— 630 660
Ag 156 55,0/57,0 21,0/23,
...