EN 1706:2020
(Main)Aluminium and aluminium alloys - Castings - Chemical composition and mechanical properties
Aluminium and aluminium alloys - Castings - Chemical composition and mechanical properties
This document specifies the chemical composition limits for aluminium casting alloys and mechanical properties of separately cast test pieces for these alloys.
Annex C is included as a guide to the selection of alloys for a specific use or process.
This document is intended to be used in conjunction with EN 576, EN 1559-1, EN 1559-4, EN 1676 and EN ISO 8062-3.
Aluminium und Aluminiumlegierungen - Gussstücke - Chemische Zusammensetzung und mechanische Eigenschaften
Dieses Dokument legt die Grenzen der chemischen Zusammensetzung von Aluminiumlegierungen für Gussstücke und die mechanischen Eigenschaften von getrennt gegossenen Probestäben für diese Legierungen fest.
Anhang C wurde als Leitfaden zur Auswahl von Legierungen für eine spezifische Anwendung oder einen spezifischen Prozess aufgenommen.
Dieses Dokument ist in Verbindung mit EN 576, EN 1559-1, EN 1559-4, EN 1676 und EN ISO 8062-3 anzuwenden.
Aluminium et alliages d'aluminium - Pièces moulées - Composition chimique et propriétés mécaniques
Le présent document spécifie les fourchettes de composition chimique des pièces moulées en alliages d’aluminium ainsi que les propriétés mécaniques des éprouvettes coulées à part pour ces alliages.
L’Annexe C est intégrée à titre de guide pour le choix des alliages pour un usage ou un procédé spécifique.
Le présent document est à utiliser conjointement avec les normes EN 576, EN 1559 1, EN 1559 4, EN 1676 et EN ISO 8062 3.
Aluminij in aluminijeve zlitine - Ulitki - Kemična sestava in mehanske lastnosti
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2020
Nadomešča:
SIST EN 1706:2010
Aluminij in aluminijeve zlitine - Ulitki - Kemična sestava in mehanske lastnosti
Aluminium and aluminium alloys - Castings - Chemical composition and mechanical
properties
Aluminium und Aluminiumlegierungen - Gussstücke - Chemische Zusammensetzung
und mechanische Eigenschaften
Aluminium et alliages d'aluminium - Pièces moulées - Composition chimique et
propriétés mécaniques
Ta slovenski standard je istoveten z: EN 1706:2020
ICS:
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 1706
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 77.150.10 Supersedes EN 1706:2010
English Version
Aluminium and aluminium alloys - Castings - Chemical
composition and mechanical properties
Aluminium et alliages d'aluminium - Pièces moulées - Aluminium und Aluminiumlegierungen - Gussstücke -
Composition chimique et propriétés mécaniques Chemische Zusammensetzung und mechanische
Eigenschaften
This European Standard was approved by CEN on 2 March 2020.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1706:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Ordering information . 8
5 Designation systems . 8
5.1 Numerical designation system . 8
5.2 Chemical symbol based designation system . 8
5.3 Temper designations . 8
5.4 Casting process designations . 9
5.5 Designations to be included in drawings . 9
6 Chemical composition . 9
6.1 General . 9
6.2 Samples for chemical analysis . 9
7 Mechanical properties . 15
7.1 General . 15
7.2 Tensile tests . 19
7.3 Test pieces . 19
7.3.1 General . 19
7.3.2 Separately cast test samples . 19
7.3.3 Test pieces taken from castings . 20
7.4 Hardness tests . 21
8 Rounding rules for determination of compliance . 21
Annex A (informative) Mechanical properties of high pressure die cast alloys . 22
Annex B (informative) Potentially achievable mechanical properties of test pieces taken
from a casting . 23
Annex C (informative) Comparison of casting characteristics, mechanical and other
properties . 25
Annex D (informative) Comparison between cast aluminium alloy designations . 34
Bibliography . 36
European foreword
This document (EN 1706:2020) has been prepared by Technical Committee CEN/TC 132 “Aluminium
and aluminium alloys”, 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 October 2020, and conflicting national standards shall
be withdrawn at the latest by October 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licences on
standardized products under reasonable and not discriminatory conditions, then this product shall be
removed from the corresponding standard.
This document supersedes EN 1706:2010.
Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 23
“Revision of EN 1676 and EN 1706” to revise EN 1706:2010.
In comparison with EN 1706:2010, the following significant changes were made:
a) Normative reference EN 10002-1 was replaced by EN ISO 6892-1;
b) Terms and definitions were updated.
c) In Table 1, the following alloys were deleted:
1) EN AC-21200 [EN AC-Al Cu4MnMg];
2) EN AC-43100 [EN AC-Al Si10Mg(b)];
d) In Table 1, the following new alloys were added:
1) EN AC-42300 [EN AC-Al Si7(Mg)];
2) EN AC-42400 [EN AC-Al Si7MnMg];
3) EN AC-44600 [EN AC-Al Si10Mn];
4) EN AC-45600 [EN AC-Al Si7Cu1Mg0,6];
5) EN AC-47200 [EN AC-Al Si12(Fe)];
6) EN AC-48200 [EN AC-Al Si15Cu3MgFe];
e) In Table 1, the maximum limit for lead was reduced to 0,29 %;
f) In Table 1, footnotes were added and modified;
g) In Table 1, the chemical composition limits of the alloys EN AC-43000 [EN AC-Al Si10Mg], EN AC-
43300 [EN AC-Al Si9Mg] and EN AC-51300 [EN AC-AlMg5] were modified.
h) In Table 2, the following alloys were deleted:
1) EN AC-21200 [EN AC-Al Cu5MnMg];
2) EN AC-43100 [EN AC-Al Si10Mg(b)];
i) In Table 2, the following new alloys were added:
1) EN AC-42300 [EN AC-Al Si7(Mg)];
2) EN AC-45600 [EN AC-Al Si7Cu1Mg0,6];
3) EN AC-48200 [EN AC-Al Si15Cu3MgFe];
j) In Table 2, the mechanical properties of the already existing alloys EN AC-42100 [EN AC-Al
Si7Mg0,3], EN AC-43300 [EN AC-Al Si9Mg] and EN AC-71100 [EN AC-Al Zn10Si8Mg] were
modified;
k) In Table 2, a new footnote was added;
l) In Table 3, the following alloys were deleted:
1) EN AC-21200 [EN AC-Al Cu5MnMg];
2) EN AC-43100 [EN AC-Al Si10Mg(b)];
m) In Table 3, the following new alloys were added:
1) EN AC-42300 [EN AC-Al Si7(Mg)];
2) EN AC-45600 [EN AC-Al Si7Cu1Mg0,6];
n) In Table 3, the mechanical properties of the already existing alloys EN AC-46200 [EN AC-Al Si8Cu3],
EN AC-43300 [EN AC-Al Si9Mg] and EN AC-71100 [EN AC-Al Zn10Si8Mg] were modified;
o) In Table A.1, the following alloy was deleted:
1) EN AC-46200 [EN AC-Al Si8Cu3];
p) In Table A.1, the following new alloys were added:
1) EN AC-42400 [EN AC-Al Si7MnMg];
2) EN AC-44600 [EN AC-Al Si10Mn];
3) EN AC-48200 [EN AC-Al Si15Cu3MgFe];
q) In Table A.1 the mechanical properties of the already existing alloys EN AC-43500 [EN AC-Al
Si10MnMg], EN AC-46000 [EN AC-Al Si9Cu3(Fe)] and EN AC-71100 [EN AC-Al Zn10Si8Mg] were
modified;
r) A new Annex B was added and the former Annex B renamed to Annex C;
s) In Table C.1, the same alloys as in Table 1 were added or deleted respectively. The suitability of
some casting methods was revised for some alloys as well as some rankings of properties.
Footnotes were modified;
t) The former Annex C was renamed to Annex D and Table D.1 was completely revised.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
1 Scope
This document specifies the chemical composition limits for aluminium casting alloys and mechanical
properties of separately cast test pieces for these alloys.
Annex C is included as a guide to the selection of alloys for a specific use or process.
This document is intended to be used in conjunction with EN 576, EN 1559-1, EN 1559-4, EN 1676 and
EN ISO 8062-3.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 576, Aluminium and aluminium alloys — Unalloyed aluminium ingots for remelting — Specifications
EN 1559-1, Founding — Technical conditions of delivery — Part 1: General
EN 1559-4, Founding — Technical conditions of delivery — Part 4: Additional requirements for
aluminium alloy castings
EN 1780-1, Aluminium and aluminium alloys — Designation of alloyed aluminium ingots for remelting,
master alloys and castings — Part 1: Numerical designation system
EN 1780-2, Aluminium and aluminium alloys — Designation of alloyed aluminium ingots for remelting,
master alloys and castings — Part 2: Chemical symbol based designation system
EN 1780-3, Aluminium and aluminium alloys — Designation of alloyed aluminium ingots for remelting,
master alloys and castings — Part 3: Writing rules for chemical composition
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN 12258-1:2012, Aluminium and aluminium alloys — Terms and definitions — Part 1: General terms
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12258-1:2012 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp/ui
3.1
casting
product at or near finished shape, formed by solidification of the metal in a mould or a die
[SOURCE: EN 12258-1:2012, 2.5.1]
3.2
sand casting
casting produced by pouring molten metal into a sand mould and allowing it to solidify
[SOURCE: EN 12258-1:2012, 2.5.2]
3.3
permanent mould casting
casting produced by introducing molten metal by gravity or low pressure into a mould constructed of
durable material, typically iron or steel, and allowing it to solidify
Note 1 to entry: Permanent mould casting where the metal solidifies in a metal mould under low pressure
(typically less tha
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