ISO 426-1:1983

International Standard
426/I
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEX~YHAPO~HAR OPfAHM3AL&lR fl0 CTAHAAPTM3AL(Ml4.ORGANISATION INTERNATlONALE DE NORMALlSATlON
Wrought copper-zinc alloys - Chemical composition
and forms of wrought products -
Part 1 I Non-leaded and special copper-zinc alloys
Alliages cuivre-zinc corroyt% - Composition chimique et formes des pro&its corroyh -
Partie I: Alliages de cuivre-zinc sans
plomb et sp&iaux
Second edition - 1983-12-01
UDC 669.35513
Ref. No. IS0 426/l-1983 (E)
Descriptors : copper alloys, zinc-containing alloys, brasses, chemical composition, wrought products.
Price based on 3 pages

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Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of developing International
Standards is carried out through IS0 technical committees. Every member body
interested in a subject for which a technical committee has been authorized 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council.
International Standard IS0 426/l was developed by Technical Committee ISO/TC 26,
Copper and copper alloys, and was circulated to the member bodies in
November 1981.
It has been approved by the member bodies of the following countries:
Austria
Germany, F. R. South Africa, Rep. of
Belgium Hungary Spain
Brazil Italy Sweden
Bulgaria Switzerland
Japan
Canada Korea, Dem. P. Rep. of Turkey
China United Kingdom
Netherlands
Czechoslovakia Norway USA
Egypt, Arab Rep. of Poland USSR
Finland Romania
expressed isapproval of the docu ment on
The member body of the following country d
nical grounds :
tech
France
This second edition cancels and replaces the first edition (i.e. IS0 426/l-1973).
0 International Organization for Standardization, 1983
Printed in Switzerland

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INTERNATIONAL STANDARD IS0 426/l-1983 (E)
Wrought copper-zinc alloys - Chemical composition
and forms of wrought products -
Part 1 : Non-leaded and special copper-zinc alloys
1 Scope and field of application IS0 1640, Wrought copper alloys - Forgings - Mechanical
properties. 2)
This part of ISO- specifies the chemical composition of non
IS0 438212, Plain bearings - Copper alloys - Part2: Wrought
leaded and special copper-zinc alloys and lists the forms of
copper alloys for solid plain bearings.
wrought products in which they are currently available in com-
mercial quantities.
IS0 6957, Wrought copper alloys - Strip for springs. 1)
For wrought leaded copper-zinc alloys, see IS0 426/2.
3 Definitions
2 References
For the purpose of this International Standard, the definitions
IS0 197, Copper and copper alloys - Terms and definitions
given in IS0 197/l and IS0 197/3 apply.
Part 7 .= Materials.
Part 3: Wrought products.
4 Chemical composition
IS0 1190/l, Copper and copper alloys - Code of designa-
Part 7 : Designation of materials.
tion -
The chemical composition of the copper alloys is given in
tables 1 and 2. The composition limits do not preclude the
IS0 1634, Wrought copper and copper alloys - Mechanical
possible presence of other elements not specified. If the pur-
properties
chaser ’s requirements necessitate limits for any other element
Part 7: Plate, sheet and strip for general purposes. 1)
not specified, these shall be agreed upon between the supplier
Part 2: Plate and sheet for boilers, pressure vessels and con-
and the purchaser. Percentage content of elements shown as
densers. 1)
“remainder” is usually calculated by difference from 100 %.
IS0 1635, Wrought copper and copper alloys - Round tubes
The designations used are in accordance with the principles laid
for general purposes - Mechanical
...