SIST EN 1753:2019
(Main)Magnesium and magnesium alloys - Magnesium alloy ingots and castings
Magnesium and magnesium alloys - Magnesium alloy ingots and castings
This document defines the grades and the corresponding requirements for cast alloyed magnesium materials.
This document specifies 2 groups of magnesium alloy grades by a classification based on the chemical composition. The first group deals with grades for magnesium alloy ingots. The second group deals with grades for magnesium alloy castings.
This document also specifies mechanical properties measured on test pieces machined from cast samples.
This document does not cover technical delivery conditions for magnesium alloy castings (see EN 1559-1 [7] and EN 1559-5 [8]).
Magnesium und Magnesiumlegierungen - Blockmetalle und Gussstücke aus Magnesiumlegierungen
Dieses Dokument legt die Sorten und die entsprechenden Anforderungen an Gussstücke aus Magnesiumlegierungen fest.
Diese Dokument legt 2 Gruppen von Magnesiumlegierungssorten nach der Einordnung anhand der chemischen Zusammensetzung fest. Die erste Gruppe behandelt Sorten für Blockmetalle aus Magnesiumlegierungen. Die zweite Gruppe behandelt Sorten für Gussstücke aus Magnesiumlegierungen.
Diese Dokument legt außerdem die mechanischen Eigenschaften fest, die an aus Probestücken durch Bearbeitung hergestellten Proben ermittelt wurden.
Diese Dokument deckt nicht die technischen Lieferbedingungen für Gussstücke aus Magnesiumlegierungen (siehe EN 1559-1 [7] und EN 1559-5 [8]) ab.
Magnésium et alliages de magnésium - Lingots et pièces moulées en alliages de magnésium
Le présent document spécifie les nuances et les exigences correspondantes pour les matériaux moulés en alliages de magnésium.
Le présent document spécifie 2 groupes de nuances d’alliages de magnésium en utilisant une classification basée sur la composition chimique. Le premier groupe concerne les nuances pour lingots en alliages de magnésium. Le second groupe concerne les nuances pour les pièces moulées en alliages de magnésium.
Le présent document spécifie aussi les propriétés mécaniques mesurées sur des éprouvettes usinées, préparées à partir d’échantillons coulés.
Le présent document ne couvre pas les conditions techniques de fourniture des pièces moulées en alliages de magnésium (voir l’EN 1559-1 [7] et l’EN 1559-5 [8]).
Magnezij in magnezijeve zlitine - Ingoti in ulitki iz magnezijevih zlitin
Ta dokument določa razrede in ustrezne zahteve za materiale iz litij magnezijevih zlitin. Ta dokument določa 2 skupini razredov magnezijevih zlitin z razvrstitvijo, ki temelji na kemijski sestavi. Prva skupina obravnava razrede za ingote iz magnezijevih zlitin. Druga skupina obravnava razrede za ulitke iz magnezijevih zlitin. Ta dokument določa tudi mehanske lastnosti, izmerjene na strojno obdelanih preskusnih primerkih iz litih vzorcev. Ta dokument ne zajema tehničnih dobavnih pogojev za ulitke iz magnezijevih zlitin (glej standarda EN 1559-1 [7] in EN 1559-5 [8]).
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1753:2019
01-december-2019
Nadomešča:
SIST EN 1753:1998
SIST EN 1753:1998/AC:2004
Magnezij in magnezijeve zlitine - Ingoti in ulitki iz magnezijevih zlitin
Magnesium and magnesium alloys - Magnesium alloy ingots and castings
Magnesium und Magnesiumlegierungen - Blockmetalle und Gussstücke aus
Magnesiumlegierungen
Magnésium et alliages de magnésium - Lingots et pièces moulées en alliages de
magnésium
Ta slovenski standard je istoveten z: EN 1753:2019
ICS:
77.150.20 Magnezijevi izdelki Magnesium products
SIST EN 1753:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 1753:2019
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SIST EN 1753:2019
EN 1753
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2019
EUROPÄISCHE NORM
ICS 77.150.20 Supersedes EN 1753:1997
English Version
Magnesium and magnesium alloys - Magnesium alloy
ingots and castings
Magnésium et alliages de magnésium - Lingots et Magnesium und Magnesiumlegierungen - Blockmetalle
pièces moulées en alliages de magnésium und Gussstücke aus Magnesiumlegierungen
This European Standard was approved by CEN on 5 August 2019.
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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1753:2019 E
worldwide for CEN national Members.
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SIST EN 1753:2019
EN 1753:2019 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Designation. 6
5 Order information . 7
6 Manufacture . 7
7 Requirements . 7
8 Sampling . 20
9 Test methods . 22
10 Retests . 24
11 Inspection documentation . 24
Annex A (informative) Comparison of material designations for magnesium alloy ingots
and castings according to EN 1754 [5] and ISO 16220 [4]. 25
Annex B (informative) Additional information regarding the manganese and iron content. 28
Annex C (informative) Additional information regarding maximum content of alloying and
trace elements in ingots and castings . 29
Annex D (informative) Significant technical changes between this European Standard and
the previous edition . 30
Bibliography . 31
2
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SIST EN 1753:2019
EN 1753:2019 (E)
European foreword
This document (EN 1753:2019) has been prepared by Technical Committee CEN/TC 190 “Foundry
technology”, 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 March 2020, and conflicting national standards shall
be withdrawn at the latest by March 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.
This document supersedes EN 1753:1997.
Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 9 “Cast
magnesium” to revise:
EN 1753:1997, Magnesium and magnesium alloys — Magnesium alloy ingots and castings
Annex D provides details of significant technical changes between this European Standard and the
previous edition.
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.
3
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SIST EN 1753:2019
EN 1753:2019 (E)
Introduction
This document classifies cast magnesium alloys into a number of grades suitable for the applications for
which they might be used.
Sixteen new grades as specified in National [1] [2] [3] or International Standards [4] have been added.
In this standard a new designation system by number, as established in EN 1754 [5], is given.
NOTE This designation system by number is based on the structure and rules of EN 10027-2 [6] and so
corresponds with the European numbering system for steel and other materials.
4
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SIST EN 1753:2019
EN 1753:2019 (E)
1 Scope
This document specifies the grades and the corresponding requirements for cast alloyed magnesium
materials.
This document specifies two groups of cast magnesium alloy grades by a classification based on the
chemical composition. The first group deals with grades for magnesium alloy ingots. The second group
deals with grades for magnesium alloy castings.
This document also specifies mechanical properties measured on test pieces machined from cast
samples.
This document does not cover technical delivery conditions for magnesium alloy castings (see
EN 1559-1 [7] and EN 1559-5 [8]).
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 10204, Metallic products - Types of inspection documents
EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1)
EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO
6892-1)
EN ISO 80000-1:2013, Quantities and units - Part 1: General (ISO 80000-1:2009 + Cor
1:2011)
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
3.1
cast sample
quantity of material cast to represent the cast material
Note 1 to entry: This includes separately cast samples, side by side cast samples and cast-on samples.
[SOURCE: EN 1563:2018, definition 3.5]
3.2
separately cast sample
sample cast in a separate mould under representative manufacturing conditions and material grade
[SOURCE: EN 1563:2018, definition 3.6]
5
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SIST EN 1753:2019
EN 1753:2019 (E)
3.3
side-by-side cast sample
sample cast in the mould alongside the casting, with a joint running system
[SOURCE: EN 1563:2018, definition 3.7]
3.4
cast-on sample
sample attached directly to the casting
[SOURCE: EN 1563:2018, definition 3.8]
3.5
test piece
part of the sample, with specified dimensions, machined or unmachined, brought to a required
condition for submission to a given test
[SOURCE: EN 1559-1:2011, definition 3.15]
4 Designation
4.1 Material
The material shall be designated either by symbol or by number as given in Tables 1, 2, 3, 4 or 5.
NOTE 1 The material symbol and number designations are in accordance with EN 1754 [5].
NOTE 2 The comparison of EN 1753 grade designations with the designations from the ISO standard for
magnesium alloy ingots and castings, ISO 16220 [4], is given in Annex A, Table A.1 and Table A.2.
NOTE 3 The materials for aerospace applications referred to in European Standards prepared by ASD-STAN
(AeroSpace and Defence Industries Association of Europe - Standardization) have different designations.
4.2 Casting process
The following symbols shall be used for the designation of the different casting processes:
— S sand casting;
— K permanent mould casting;
— D pressure die casting;
— L investment casting.
NOTE Examples of the use of these designations are given in EN 1559-5 [8].
6
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EN 1753:2019 (E)
4.3 Temper
The following symbols for temper designation shall be used:
— F as cast;
— T4 solution heat-treated and naturally aged;
— T5 as cast and artificially aged;
— T6 solution heat-treated and artificially aged.
NOTE Examples of the use of these designations are given in EN 1559-5 [8].
5 Order information
The following information shall be supplied by the purchaser:
a) the number of this document;
b) the designation of the material;
c) any special requirements.
All requirements shall be agreed between the manufacturer and the purchaser by the time of
acceptance of the order, e.g. technical delivery conditions according to EN 1559-1 [7] and
EN 1559-5 [8].
6 Manufacture
The method of producing magnesium alloy ingots and castings shall be left to the discretion of the
manufacturer who shall ensure that the requirements of this document are met for the material grade
specified in the order.
All agreements between the manufacturer and the purchaser shall be made by the time of the
acceptance of the order.
7 Requirements
7.1 Chemical composition
The chemical composition of magnesium alloy ingots shall conform to the requirements for the
appropriate material grade given in Table 1.
The chemical composition of magnesium alloy castings shall conform to the requirements for the
appropriate material grade given in Table 2.
If not otherwise specified in the enquiry and order, the chemical composition of the ingot or casting
shall relate to that of the cast samples taken from the melt at the time of pouring.
NOTE 1 For additional information regarding the manganese and iron contents, see Annex B.
NOTE 2 For additional information regarding the maximum content of alloying and trace elements in ingots
and castings, see Annex C.
7
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EN 1753:2019 (E)
7.2 Tensile properties of castings
7.2.1 Test pieces machined from cast samples or as cast test pieces
The mechanical properties obtained from test pieces prepared from cast samples for sand castings and
permanent mould castings shall meet the requirements given in Tables 3 and 4. As appropriate, the
tests shall be carried out in accordance with Clause 9.
NOTE 1 Mechanical properties obtained from test pieces prepared from cast samples for investment castings
are not specified as experience is limited. As a general rule they are similar to those for permanent mould castings.
NOTE 2 The mechanical properties obtained from test pieces prepared from separately cast samples for
pressure die castings are very dependent upon injection parameters. Therefore, the properties given in Table 5
are for guidance only.
NOTE 3 Tensile testing requires sound test pieces in order to guarantee pure uni-axial stress during the test.
7.2.2 Test pieces machined from samples cut from a casting
If applicable, the manufacturer and the purchaser shall agree on:
— the location(s) on a casting where the sample(s) shall be taken;
— the mechanical properties that shall be determined;
— the minimum values, or allowable range of values, for these mechanical properties (for information,
see Table 3 and 4, NOTE 1).
NOTE 1 The properties of castings may not be uniform, depending on the complexity of the castings and
variation in their section thickness.
NOTE 2 Mechanical properties for test pieces cut from a casting are affected not only by material properties
(subject of this standard) but also by the local casting soundness (not subject of this standard).
7.3 Hardness of castings
Guidance values for Brinell hardness of castings are given in Tables 3, 4 and 5.
The Brinell hardness test shall be carried out on porosity free areas of castings or on a test piece which
has not been stressed.
7.4 General condition of the product
The product shall have a clean surface in accordance with an agreement between the manufacturer and
the purchaser, and shall be free from visible and internal imperfections to a level also agreed between
the manufacturer and the purchaser (see EN 1559-5 [8]).
8
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SIST EN 1753:2019
EN 1753:2019 (E)
Table 1 — Chemical composition of magnesium alloy ingots
Material designation Composition in % (mass fraction)
Alloy
Min. or Others
group
a b
Symbol Number Mg Al Zn Mn RE Zr Ag Y Gd Li Th Si Fe Cu Ni
max each
min. Rem. 5,5 - 0,1 - - - - - - - - - - - -
MgAl EN-MBMgAl6 3.5210
max. - 6,5 0,20 0,4 - - - - - - - 0,20 0,05 0,20 0,01 0,05
min. Rem. 2,0 0,2 0,1 - - - - - - - - - - - -
EN-MBMgAl2Zn 3.5211
max. - 2,5 0,8 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 2,6 0,7 0,1 - - - - - - - - - - - -
EN-MBMgAl3Zn1 3.5212
max. - 3,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 5,5 0,7 0,1 - - - - - - - - - - - -
EN-MBMgAl6Zn1 3.5213
max. - 6,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 5,0 2,0 0,1 - - - - - - - - - - - -
MgAlZn EN-MBMgAl6Zn3 3.5214
max. - 7,0 3,5 - - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 7,2 0,45 0,17 - - - - - - - - - - - -
EN-MBMgAl8Zn1 3.5215
max. - 8,5 0,9 - - - - - - - - 0,05 0,004 0,025 0,001 0,01
min. Rem. 8,5 0,45 0,17 - - - - - - - - - - - -
EN-MBMgAl9Zn1(A) 3.5216
max. - 9,5 0,9 - - - - - - - - 0,05 0,004 0,025 0,001 0,01
min. Rem. 8,0 0,3 - - - - - - - - - - - - -
EN-MBMgAl9Zn1(B) 3.5217
max. - 10,0 1,0 - - - - - - - - 0,3 0,03 0,20 0,01 0,05
min. Rem. 1,7 - 0,35 - - - - - - - - - - - -
EN-MBMgAl2Mn 3.5220
max. - 2,5 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
min. Rem. 4,5 - 0,27 - - - - - - - - - - - -
EN-MBMgAl5Mn 3.5221
max. - 5,3 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
MgAlMn
min. Rem. 5,6 - 0,23 - - - - - - - - - - - -
EN-MBMgAl6Mn 3.5222
max. - 6,4 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
min. Rem. 6,6 - 0,20 - - - - - - - - - - - -
EN-MBMgAl7Mn 3.5223
max. - 7,4 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
9
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SIST EN 1753:2019
EN 1753:2019 (E)
Material designation Composition in % (mass fraction)
Alloy
Min. or Others
group
a b
Symbol Number Mg Al Zn Mn RE Zr Ag Y Gd Li Th Si Fe Cu Ni
max each
min. Rem. 1,9 - 0,20 - - - - - - - 0,7 - - - -
EN-MBMgAl2Si 3.5225
max. - 2,5 0,2 - - - - - - - - 1,2 0,004 0,0008 0,001 0,01
MgAlSi
min. Rem. 3,7 - 0,20 - - - - - - - 0,7 - - - -
EN-MBMgAl4Si 3.5226
max. - 4,8 0,2 - - - - - - - - 1,2 0,004 0,008 0,001 0,01
min. Rem. 3,6 - 0,15 3,6 - - - - - - - - - - -
e,h
MgAlRE EN-MBMgAl4RE4 3.5228
max. - 4,4 0,20 0,50 4,6 - - - - - - 0,08 0,004 0,008 0,001 0,01
min. Rem. - - 0,50 - - - - - - - - - - - -
EN-MBMgMn1 3.5230
max. - 0,01 0,05 1,3 - - - - - - - 0,05 0,02 0,02 0,001 0,05
MgMn
min. Rem. - - 1,20 - - - - - - - - - - - -
EN-MBMgMn2 3.5231
max. - 0,01 0,05 2,5 - - - - - - - 0,05 0,02 0,02 0,001 0,05
min. Rem. - 5,5 0,25 - - - - - - - - - 2,4 - -
MgZnCu EN-MBMgZn6Cu3Mn 3.5232
max. - - 6,5 0,75 - - - - - - - 0,20 0,05 3,0 0,01 0,01
min. Rem. - - - - 0,3 - - - - - - - - - -
MgZr EN-MBMgZr 3.5240
max. - - 0,10 0,15 - 0,8 - - - - - 0,01 0,01 0,03 0,005 0,01
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SIST EN 1753:2019
EN 1753:2019 (E)
Material designation Composition in % (mass fraction)
Alloy
Min. or Others
group
a b
Symbol Number Mg Al Zn Mn RE Zr Ag Y Gd Li Th Si Fe Cu Ni
max each
min. Rem. - 2,5 - - 0,4 - - - - - - - - - -
EN-MBMgZn3Zr 3.5241
max. - - 4,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 3,5 - - 0,4 - - - - - - - - - -
MgZnZr EN-MBMgZn5Zr 3.5242
max. - - 5,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 5,5 - - 0,4 - - - - - - - - - -
EN-MBMgZn6Zr 3.5243
max. - - 6,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 3,5 - 1, 0 0,1 - - - - - - - - - -
EN-MBMgZn4RE1Zr 3.5246
max. - - 5,0 0,15 1,75 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
c
MgZnREZr
min. Rem. - 2,0 - 2,4 0,1 - - - - - - - - - -
EN-MBMgRE3Zn2Zr 3.5247
max. - - 3,0 0,15 4,0 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - - - 1,5 0,1 1,3 - - - - - - 0,05 - -
EN-MBMgRE2Ag1Zr 3.5250
max. - - 0,2 0,15 3,0 1,0 1,7 - - - - 0,01 0,01 0,10 0,005 0,01
min. Rem. - - - 2,0 0,1 2,0 - - - - - - - - -
d
MgREAgZr EN-MBMgRE2Ag2Zr 3.5251
max. - - 0,2 0,15 3,0 1,0 3,0 - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - - - 1,7 0,1 - - - - - - - - - -
EN-MBMgAg3RE2Zr 3.5252
max. - - 0,10 0,15 2,5 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 0,20 - 2,6 0,4 - - 1,0 - - - - - - -
e
MgREGdZr EN-MBMgRE3Gd1Zr 3.5256
max. - - 0,50 0,03 3,1 1,0 0,05 - 1,7 - - 0,010 0,01 0,0020 0,01 0,01
min. Rem. - - - 2,4 0,1 - 3,7 - - - - - - - -
EN-MBMgY4RE3Zr 3.5260
max. - - 0,2 0,15 4,4 1,0 - 4,3 - 0,2 - 0,01 0,01 0,03 0,005 0,01
f,g
MgYREZr
min. Rem. - - - 1,5 0,1 - 4,75 - - - - - - - -
EN-MBMgY5RE4Zr 3.5261
max. - - 0,2 0,15 4,0 1,0 - 5,5 - 0,2 - 0,01 0,01 0,03 0,005 0,01
11
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SIST EN 1753:2019
EN 1753:2019 (E)
Material designation Composition in % (mass fraction)
Alloy
Min. or Others
group
a b
Symbol Number Mg Al Zn Mn RE Zr Ag Y Gd Li Th Si Fe Cu Ni
max each
min. Rem. - 1,7 - - 0,4 - - - - 2,5 - - - - -
EN-MBMgTh3Zn2Zr 3.5270
max. - - 2,5 0,15 0,1 1,0 - - - - 3,5 0,01 0,01 0,03 0,005 0,01
MgZnThZr
min. Rem. - 5,0 - - 0,4 - - - - 1,5 - - - - -
EN-MBMgZn6Th2Zr 3.5271
max. - - 6,0 0,15 0,1 1,0 - - - - 2,3 0,01 0,01 0,03 0,005 0,01
a
For maximum manganese content, see Annex B.
b
RE: rare earth.
c
Cerium rich.
d
Neodymium rich.
e
Neodymium is 2,6 % to 3,1 %; other rare earth elements may also be present to a total maximum of 0,4 %. These RE shall principally be cerium, lanthanum and praseodymium.
f
Neodymium and heavy RE rich.
g
Improved corrosion resistance may be obtained by reducing the maximum manganese content to 0,3 %, the maximum iron content to 0,01 %, the maximum copper content to
0,02 % and the maximum zinc + silver content to 0,2 %.
h
RE/Al ratio > 0,9.
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EN 1753:2019 (E)
Table 2 — Chemical composition of magnesium alloy castings
Material designation Casting Composition in % (mass fraction)
Fe/Mn
j
Alloy group process
Min. or Others
h
a b ratio
Symbol Number Mg Al Zn Zr Ag Y Gd Li Th Si Fe Cu Ni
Mn RE
max. each
min. Rem. 5,5 - 0,1 - - - - - - - - - - - -
MgAl EN-MCMgAl6 3.5310 D -
max. - 6,5 0,20 0,4 - - - - - - - 0,20 0,05 0,20 0,01 0,05
min. Rem. 2,0 0,2 0,1 - - - - - - - - - - - -
EN-MCMgAl2Zn 3.5311 D -
max. - 2,5 0,8 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 2,6 0,7 0,1 - - - - - - - - - - - -
EN-MCMgAl3Zn1 3.5312 D -
max. - 3,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 5,5 0,7 0,1 - - - - - - - - - - - -
EN-MCMgAl6Zn1 3.5313 D -
max. - 6,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 5,0 2,0 0,1 - - - - - - - - - - - -
EN-MCMgAl6Zn3 3.5314 S, K, L -
max. - 7,0 3,5 - - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 7,0 0,35 0,1 - - - - - - - - - - - -
MgAlZn EN-MCMgAl8Zn1 3.5315 D -
max. - 8,7 1,0 - - - - - - - - 0,10 0,005 0,030 0,002 0,01
min. Rem. 7,0 0,40 0,1 - - - - - - - - - - - -
EN-MCMgAl8Zn1 3.5315 S, K, L -
max. - 8,7 1,0 - - - - - - - - 0,20 0,005 0,030 0,001 0,01
min. Rem. 8,3 0,35 0,1 - - - - - - - - - - - -
EN-MCMgAl9Zn1(A) 3.5316 D 0,032
max. - 9,7 1,0 - - - - - - - - 0,10 0,005 0,030 0,002 0,01
min. Rem. 8,3 0,40 0,1 - - - - - - - - - - - -
EN-MCMgAl9Zn1(A) 3.5316 S, K, L 0,032
max. - 9,7 1,0 - - - - - - - - 0,20 0,005 0,030 0,001 0,01
min. Rem. 8,0 0,3 - - - - - - - - - - - - -
EN-MCMgAl9Zn1(B) 3.5317 D, S, K, L -
max. - 10,0 1,0 - - - - - - - - 0,3 0,03 0,20 0,01 0,05
13
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SIST EN 1753:2019
EN 1753:2019 (E)
Material designation Casting Composition in % (mass fraction)
Fe/Mn
j
Alloy group process
Min. or Others h
a b ratio
Symbol Number Mg Al Zn Zr Ag Y Gd Li Th Si Fe Cu Ni
Mn RE
max. each
min. Rem. 1,6 - 0,1 - - - - - - - - - - - -
EN-MCMgAl2Mn 3.5320 D 0,012
max. - 2,6 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
min. Rem. 4,4 - 0,1 - - - - - - - - - - - -
EN-MCMgAl5Mn 3.5321 D 0,015
max. - 5,5 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
MgAlMn
min. Rem. 5,5 - 0,1 - - - - - - - - - - - -
EN-MCMgAl6Mn 3.5322 D 0,021
max. - 6,5 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
min. Rem. 6,5 - 0,1 - - - - - - - - - - - -
EN-MCMgAl7Mn 3.5323 D -
max. - 7,5 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
min. Rem. 1,8 - 0,1 - - - - - - - 0,7 - - - -
EN-MCMgAl2Si 3.5325 D 0,022
max. - 2,6 0,2 - - - - - - - - 1,2 0,005 0,010 0,002 0,01
MgAlSi
min. Rem. 3,5 - 0,1 - - - - - - - 0,7 - - - -
EN-MCMgAl4Si 3.5326 D 0,022
max. - 5,0 0,2 - - - - - - - - 1,2 0,005 0,010 0,002 0,01
min. Rem. 3,5 - 0,15 3,5 - - - - - - - - - - -
c,i
EN-MCMgAl4RE4 3.5328 D -
MgAlRE
max. - 4,5 0,20 0,50 4,5 - - - - - - 0,08 0,005 0,008 0,001 0,01
min. Rem. - - 0,50 - - - - - - - - - - - -
EN-MCMgMn1 3.5330 S, K, L -
max. - 0,01 0,05 1,3 - - - - - - - 0,05 0,02 0,02 0,001 0,05
MgMn
min. Rem. - - 1,20 - - - - - - - - - - - -
EN-MCMgMn2 3.5331 S, K, L -
max. - 0,01 0,05 2,5 - - - - - - - 0,05 0,02 0,02 0,001 0,05
min. Rem. - 5,5 0,25 - - - - - - - - - 2,4 - -
MgZnCu EN-MCMgZn6Cu3Mn 3.5332 S, K, L -
max. - - 6,5 0,75 - - - - - - - 0,20 0,05 3,0 0,01 0,01
min. Rem. - - - - 0,3 - - - - - - - - - -
MgZr EN-MCMgZr 3.5340 S, K, L -
max. - - 0,10 0,15 - 0,8 - - - - - 0,01 0,01 0,03 0,005 0,01
14
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SIST EN 1753:2019
EN 1753:2019 (E)
Material designation Casting Composition in % (mass fraction)
Fe/Mn
j
Alloy group process
Min. or Others h
a b ratio
Symbol Number Mg Al Zn Zr Ag Y Gd Li Th Si Fe Cu Ni
Mn RE
max. each
min. Rem. - 2,5 - - 0,4 - - - - - - - - - -
EN-MCMgZn3Zr 3.5341 S, K, L -
max. - - 4,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 3,5 - - 0,4 - - - - - - - - - -
MgZnZr EN-MCMgZn5Zr 3.5342 S, K, L -
max. - - 5,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 5,5 - - 0,4 - - - - - - - - - -
EN-MCMgZn6Zr 3.5343 S, K, L -
max. - - 6,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 3,5 - 0,75 0,4 - - - - - - - - - -
EN-MCMgZn4RE1Zr 3.5346 S, K, L -
max. - - 5,0 0,15 1,75 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
c
MgZnREZr
min. Rem. - 2,0 - 2,5 0,4 - - - - - - - - - -
EN-MCMgRE3Zn2Zr 3.5347 S, K, L -
max. - - 3,0 0,15 4,0 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - - - 1,5 0,4 1,3 - - - - - - 0,05 - -
EN-MCMgRE2Ag1Zr 3.5350 S, K, L -
max. - - 0,2 0,15 3,0 1,0 1,7 - - - - 0,01 0,01 0,10 0,005 0,01
min. Rem. - - - 2,0 0,4 2,0 - - - - - - - - -
d
EN-MCMgRE2Ag2Zr 3.5351 S, K, L -
MgREAgZr
max. - - 0,2 0,15 3,0 1,0 3,0 - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - - - 1,7 0,4 - - - - - - - - - -
EN-MCMgAg3RE2Zr 3.5352 S, K, L -
max. - - 0,10 0,15 2,5 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 0,20 - 2,6 0,4 - - 1,0 - - - - - - -
e
EN-MCMgRE3Gd1Zr 3.5356 S, K, L -
MgREGdZr
max. - - 0,50 0,03 3,1 1,0 0,05 - 1,7 - - 0,010 0,01 0,0020 0,01 0,01
min. Rem. - - - 2,4 0,4 - 3,7 - - - - - - - -
EN-MCMgY4RE3Zr 3.5360 S, K, L -
max. - - 0,2 0,15 4,4 1,0 - 4,3 - 0,2 - 0,01 0,01 0,03 0,005 0,01
f,g
MgYREZr
min. Rem. - - - 1,5 0,4 - 4,75 - - - - - - - -
EN-MCMgY5RE4Zr 3.5361 S, K, L -
max. - - 0,2 0,15 4,0 1,0 - 5,5 - 0,2 - 0,01 0,01 0,03 0,005 0,01
15
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SIST EN 1753:2019
EN 1753:2019 (E)
Material designation Casting Composition in % (mass fraction)
Fe/Mn
j
Alloy group process
Min. or Others h
a b ratio
Symbol Number Mg Al Zn Zr Ag Y Gd Li Th Si Fe Cu Ni
Mn RE
max. each
min. Rem. - 1,7 - - 0,4 - - - - 2,5 - - - - -
EN-MCMgTh3Zn2Zr 3.5370 S, K, L -
max. - - 2,5 0,15 0,1 1,0 - - - - 3,5 0,01 0,01 0,03 0,005 0,01
MgZnThZr
min. Rem. - 5,0 - - 0,4 - - - - 1,5 - - - - -
EN-MCMgZn6Th2Zr 3.5371 S, K, L -
max. - - 6,0 0,15 0,1 1,0 - - - - 2,3 0,01 0,01 0,03 0,005 0,01
a
For maximum manganese content, see Annex B.
b
RE = rare earth.
c
Cerium rich.
d
Neodymium rich.
e
Neodymium is 2,6 % to 3,1 %; other rare earth elements may also be present to a total maximum of 0,4 %. These RE shall principally be cerium, lanthanum and praseodymium.
f
Neodymium and heavy RE rich.
g
Improved corrosion resistance may be obtained by reducing the maximum manganese content to 0,3 %, the maximum iron content to 0,01 %, the maximum copper content to
0,02 % and the maximum zinc + silver content to 0,2 %.
h
If the minimum Mn limit is not met.
i
RE/Al ratio ≥ 0,8.
j See 4.2.
16
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EN 1753:2019 (E)
Table 3 — Mechanical properties determined on as cast test pieces or test pieces
machined from cast samples of sand cast magnesium alloys
Alloy Material, casting process and temper Tensile 0,2 % proof Elongation Brinell
group designation strength strength after fracture hardness
a
range
R A HBW
p0,2
MPa MPa %
Symbol Number min. min. min.
EN-MCMgAl6Zn3-S-F 3.5314-S-F 160 75 3 50 to 65
EN-MCMgAl8Zn1-S-F 3.5315-S-F 160 90 2 50 to 65
EN-MCMgAl8Zn1-S-T4 3.5315-S-T4 240 90 8 50 to 65
MgAlZn
EN-MCMgAl9Zn1(A)-S-F 3.5316-S-F 160 90 2 50 to 65
EN-MCMgAl9Zn1(A)-S-T4 3.5316-S-T4 240 110 6 55 to 70
EN-MCMgAl9Zn1(A)-S-T6 3.5316-S-T6 240 150 2 60 to 90
MgMn EN-MCMgMn2-S-T6 3.5331-S-T6 200 150 2 -
MgZnCu EN-MCMgZn6Cu3Mn-S-T6 3.5332-S-T6 195 125 2 55 to 65
MgZr EN-MCMgZr-S-T5 3.5340-S-T5 160 40 15 -
EN-MCMgZn3Zr-S-T5 3.5341-S-T5 290 200 7 -
MgZnZr EN-MCMgZn5Zr-S-T5 3.5342-S-T5 235 140 5 -
EN-MCMgZn6Zr-S-T5 3.5343-S-T5 300 220 7 -
EN-MCMgZn4RE1Zr-S-T5 3.5346-S-T5 200 135 2,5 55 to 70
c
MgZnREZr
EN-MCMgRE3Zn2Zr-S-T5 3.5347-S-T5 140 95 2,5 50 to 60
EN-MCMgRE2Ag1Zr-S-T6 3.5350-S-T6 240 175 2 70 to 90
c
EN-MCMgRE2Ag2Zr-S-T6 3.5351-S-T6 240 175 2 70 to 90
MgREAgZr
EN-MCMgAg3RE2Zr-S-T6 3.5352-S-T6 240 170 3 -
c b b
EN-MCMgRE3Gd1Zr-S-T6 3.5356-S-T6 2 70 to 90
MgREGdZr 248 145
...
SLOVENSKI STANDARD
oSIST prEN 1753:2018
01-september-2018
Magnezij in magnezijeve zlitine - Ingoti in ulitki iz magnezijevih zlitin
Magnesium and magnesium alloys - Magnesium alloy ingots and castings
Magnesium und Magnesiumlegierungen - Blockmetalle und Gussstücke aus
Magnesiumlegierungen
Magnésium et alliages de magnésium - Lingots et pièces moulées en alliages de
magnésium
Ta slovenski standard je istoveten z: prEN 1753
ICS:
77.150.20 Magnezijevi izdelki Magnesium products
oSIST prEN 1753:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1753:2018
DRAFT
EUROPEAN STANDARD
prEN 1753
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2018
ICS 77.150.20 Will supersede EN 1753:1997
English Version
Magnesium and magnesium alloys - Magnesium alloy
ingots and castings
Magnésium et alliages de magnésium - Lingots et Magnesium und Magnesiumlegierungen - Blockmetalle
pièces moulées en alliages de magnésium und Gussstücke aus Magnesiumlegierungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 190.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1753:2018 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Designation. 7
4.1 Material . 7
4.2 Casting process . 7
4.3 Temper . 7
5 Order information . 8
6 Manufacture . 8
7 Requirements . 8
7.1 Chemical composition . 8
7.2 Tensile properties of castings . 8
7.2.1 Test pieces machined from cast samples or as cast test pieces . 8
7.2.2 Test pieces machined from cast samples cut from a casting . 9
7.3 Hardness of castings . 9
7.4 General condition of the product . 9
8 Sampling . 19
8.1 General . 19
8.2 Cast samples . 20
8.2.1 Size of cast sample . 20
8.2.2 Frequency and number of tests . 20
8.2.3 Separately cast samples . 20
8.2.4 Side-by-side cast samples. 20
8.2.5 Cast-on samples . 20
8.3 Cast samples cut from a casting . 21
9 Test methods . 21
9.1 Determination of the chemical composition . 21
9.1.1 General . 21
9.1.2 Rounding of results of chemical analysis . 21
9.2 Tensile test . 21
9.3 Hardness test . 22
10 Retests . 23
10.1 Need for retests . 23
10.2 Test validity . 23
10.3 Non-conforming test results . 23
10.4 Heat treatment of cast samples and castings . 23
11 Inspection documentation . 24
Annex A (informative) Comparison of material designations for magnesium alloy ingots and
castings according to EN 1754 [5] and ISO 16220 [4] . 25
Annex B (informative) Additional information regarding the manganese and iron content . 28
2
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Annex C (informative) Additional information regarding maximum content of alloying
elements and impurities in ingots and castings . 29
Annex D (informative) Significant technical changes between this European standard and
the previous edition . 30
3
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European foreword
This document (prEN 1753:2018) has been prepared by Technical Committee CEN/TC 190 “Foundry
technology”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1753:1997.
Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 9 “Cast
magnesium” to revise:
EN 1753:1997, Magnesium and magnesium alloys — Magnesium alloy ingots and castings
Annex D provides details of significant technical changes between this European standard and the
previous edition.
4
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Introduction
This European standard classifies cast magnesium alloys into a number of grades suitable for the
applications for which they might be used.
Sixteen new grades as specified in National [1] [2] [3] or International Standards [4] have been added.
In this standard a new designation system by number, as established in EN 1754 [5], is given.
NOTE This designation system by number is based on the structure and rules of EN 10027-2 [6] and so
corresponds with the European numbering system for steel and other materials.
5
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1 Scope
This document defines the grades and the corresponding requirements for cast alloyed magnesium
materials.
This document specifies 2 groups of magnesium alloy grades by a classification based on the chemical
composition. The first group deals with grades for magnesium alloy ingots. The second group deals with
grades for magnesium alloy castings.
This document also specifies mechanical properties measured on test pieces machined from cast
samples.
This document does not cover technical delivery conditions for magnesium alloy castings (see
EN 1559-1 [7] and EN 1559-5 [8]).
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 10204, Metallic products — Types of inspection documents
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature (ISO
6892-1)
EN ISO 80000-1:2013, Quantities and units — Part 1: General (ISO 80000-1:2009 + Cor 1:2011)
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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 http://www.iso.org/obp
3.1
cast sample
quantity of material cast to represent the cast material
Note 1 to entry: This includes separately cast sample, side by side cast sample and cast-on sample.
[Source: FprEN 1563:2018, definition 3.5]
3.2
separately cast sample
sample cast in a separate mould under representative manufacturing conditions and material grade
[Source: FprEN 1563:2018, definition 3.6]
3.3
side-by-side cast sample
sample cast in the mould alongside the casting, with a joint running system
6
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[Source: FprEN 1563:2018, definition 3.7]
3.4
cast-on sample
sample attached directly to the casting
[Source: FprEN 1563:2018, definition 3.8]
3.5
test piece
part of the sample, with specified dimensions, machined or unmachined, brought to a required
condition for submission to a given test
[Source: EN 1559-1:2011, definition 3.15]
4 Designation
4.1 Material
The material shall be designated either by symbol or by number as given in Tables 1, 2, 3, 4 or 5.
NOTE 1 The material symbol designation and the material number designation are in accordance with EN 1754
[5].
NOTE 2 The comparison of EN 1753 grade designations with the designations from the ISO standard for
magnesium alloy ingots and castings, ISO 16220 [4], is given in Annex A, Table A.1 and Table A.2.
NOTE 3 The materials for aerospace applications referred to in European Standards prepared by AECMA
(Association Européenne des Constructeurs de Matériel Aérospatial) have different designations.
4.2 Casting process
The following symbols shall be used for the designation of the different casting processes:
— S sand casting;
— K permanent mould casting;
— D pressure die casting;
— L investment casting.
NOTE Examples of the use of these designations are given in EN 1559-5 [8].
4.3 Temper
The following symbols for temper designation shall be used:
— F as cast;
— T4 solution heat-treated and naturally aged;
— T5 as cast and artificially aged;
— T6 solution heat-treated and artificially aged.
7
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NOTE Examples of the use of these designations are given in EN 1559-5 [8].
5 Order information
The following information shall be supplied by the purchaser:
a) the number of this European standard;
b) the designation of the material;
c) any special requirements.
All requirements shall be agreed between the manufacturer and the purchaser by the time of
acceptance of the order, e.g. technical delivery conditions according to EN 1559-1 [7] and EN 1559-5
[8].
6 Manufacture
The method of producing magnesium alloy ingots and castings shall be left to the discretion of the
manufacturer who shall ensure that the requirements of this European standard are met for the
material grade specified in the order.
All agreements between the manufacturer and the purchaser shall be made by the time of the
acceptance of the order.
7 Requirements
7.1 Chemical composition
The chemical composition of magnesium alloy ingots shall conform to the requirements for the
appropriate material given in Table 1.
The chemical composition of magnesium alloy castings shall conform to the requirements for the
appropriate material given in Table 2.
If not otherwise specified in the enquiry and order, the chemical composition of the ingot or casting
shall relate to that of the cast samples taken from the melt at the time of pouring.
NOTE 1 For additional information regarding the manganese and iron contents see Annex B.
NOTE 2 For additional information regarding maximum content of alloying elements and impurities in ingots
and castings see Annex C.
7.2 Tensile properties of castings
7.2.1 Test pieces machined from cast samples or as cast test pieces
The mechanical properties obtained from test pieces prepared from cast samples for sand castings and
permanent mould castings shall meet the requirements given in Tables 3 and 4. As appropriate, the
tests shall be carried out in accordance with Clause 9.
NOTE 1 Mechanical properties obtained from test pieces prepared from cast samples for investment castings
are not specified as experience is limited. As a general rule they are similar to those for permanent mould castings.
NOTE 2 The mechanical properties obtained from test pieces prepared from separately cast samples for
pressure die castings are very dependent upon injection parameters. Therefore, the properties given in Table 5
are for guidance only.
8
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NOTE 3 Tensile testing requires sound test pieces in order to guarantee pure uni-axial stress during the test.
7.2.2 Test pieces machined from cast samples cut from a casting
If applicable, the manufacturer and the purchaser shall agree on:
— the location(s) on a casting where the cast sample(s) shall be taken;
— the mechanical properties that shall be measured;
— the minimum values, or allowable range of values, for these mechanical properties (for information,
see Table 3 and 4, NOTE 1).
NOTE 1 The properties of castings may not be uniform, depending on the complexity of the castings and
variation in their section thickness.
NOTE 2 Mechanical properties for test pieces cut from a casting are affected not only by material properties
(subject of this standard) but also by the local casting soundness (not subject of this standard).
7.3 Hardness of castings
Guidance values for Brinell hardness are given in Tables 3, 4 and 5.
The Brinell hardness test shall be carried out on porosity free areas of castings or on a test piece which
has not been stressed.
7.4 General condition of the product
The product shall have a clean surface in accordance with an agreement between the manufacturer and
the purchaser, and shall be free from visible and internal imperfections to a level also agreed between
the manufacturer and the purchaser (see EN 1559-5 [8]).
9
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Table 1 — Chemical composition of magnesium alloy ingots
Alloy Material designation Composition in % (mass fraction)
group
Symbol Number Min. Mg Al Zn Mn RE Zr Ag Y Gd Li Th Si Fe Cu Ni Others
or a b each
max
MgAl EN-MBMgAl6 3.5210 min. Rem. 5,5 - 0,1 - - - - - - - - - - - -
max. - 6,5 0,20 0,4 - - - - - - - 0,20 0,05 0,20 0,01 0,05
MgAlZn EN-MBMgAl2Zn 3.5211 min. Rem. 2,0 0,2 0,1 - - - - - - - - - - - -
max. - 2,5 0,8 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
EN-MBMgAl3Zn1 3.5212 min. Rem. 2,6 0,7 0,1 - - - - - - - - - - - -
max. - 3,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
EN-MBMgAl6Zn1 3.5213 min. Rem. 5,5 0,7 0,1 - - - - - - - - - - - -
max. - 6,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
EN-MBMgAl6Zn3 3.5214 min. Rem. 5,0 2,0 0,1 - - - - - - - - - - - -
max. - 7,0 3,5 - - - - - - - - 0,30 0,05 0,20 0,01 0,05
EN-MBMgAl8Zn1 3.5215 min. Rem. 7,2 0,45 0,17 - - - - - - - - - - - -
max. - 8,5 0,9 - - - - - - - - 0,05 0,004 0,025 0,001 0,01
EN- 3.5216 min. Rem. 8,5 0,45 0,17 - - - - - - - - - - - -
MBMgAl9Zn1(A)
max. - 9,5 0,9 - - - - - - - - 0,05 0,004 0,025 0,001 0,01
EN- 3.5217 min. Rem. 8,0 0,3 - - - - - - - - - - - - -
MBMgAl9Zn1(B)
max. - 10,0 1,0 - - - - - - - - 0,3 0,03 0,20 0,01 0,05
MgAlMn EN-MBMgAl2Mn 3.5220 min. Rem. 1,7 - 0,35 - - - - - - - - - - - -
max. - 2,5 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
EN-MBMgAl5Mn 3.5221 min. Rem. 4,5 - 0,27 - - - - - - - - - - - -
max. - 5,3 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
EN-MBMgAl6Mn 3.5222 min. Rem. 5,6 - 0,23 - - - - - - - - - - - -
max. - 6,4 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
EN-MBMgAl7Mn 3.5223 min. Rem. 6,6 - 0,20 - - - - - - - - - - - -
max. - 7,4 0,2 - - - - - - - - 0,05 0,004 0,008 0,001 0,01
10
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oSIST prEN 1753:2018
prEN 1753:2018 (E)
Alloy Material designation Composition in % (mass fraction)
group
Symbol Number Min. Mg Al Zn Mn RE Zr Ag Y Gd Li Th Si Fe Cu Ni Others
or a b each
max
MgAlSi EN-MBMgAl2Si 3.5225 min. Rem. 1,9 - 0,20 - - - - - - - 0,7 - - - -
max. - 2,5 0,2 - - - - - - - - 1,2 0,004 0,0008 0,001 0,01
EN-MBMgAl4Si 3.5226 min. Rem. 3,7 - 0,2 - - - - - - - 0,7 - - - -
max. - 4,8 0,2 - - - - - - - - 1,2 0,004 0,008 0,001 0,01
e EN- 3.5228 min. Rem. 3,6 - 0,15 3,6 - - - - - - - - - - -
MgAlRE
MBMgAl4RE4
max. - 4,4 0,20 0,50 4,6 - - - - - - 0,08 0,004 0,008 0,001 0,01
h
MgMn EN-MBMgMn1 3.5230 min. Rem. - - 0,50 - - - - - - - - - - - -
max. - 0,01 0,05 1,3 - - - - - - - 0,05 0,02 0,02 0,001 0,05
EN-MBMgMn2 3.5231 min. Rem. - - 1,20 - - - - - - - - - - - -
max. - 0,01 0,05 2,5 - - - - - - - 0,05 0,02 0,02 0,001 0,05
MgZnCu EN- 3.5232 min. Rem. - 5,5 0,25 - - - - - - - - - 2,4 - -
MBMgZn6Cu3Mn
max. - - 6,5 0,75 - - - - - - - 0,20 0,05 3,0 0,01 0,01
MgZr EN-MBMgZr 3.5240 min. Rem. - - - - 0,3 - - - - - - - - - -
max. - - 0,10 0,15 - 0,8 - - - - - 0,01 0,01 0,03 0,005 0,01
MgZnZr EN-MBMgZn3Zr 3.5241 min. Rem. - 2,5 - - 0,4 - - - - - - - - - -
max. - - 4,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
EN-MBMgZn5Zr 3.5242 min. Rem. - 3,5 - - 0,4 - - - - - - - - - -
max. - - 5,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
EN-MBMgZn6Zr 3.5243 min. Rem. - 5,5 - - 0,4 - - - - - - - - - -
max. - - 6,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
MgZnREZr EN- 3.5246 min. Rem. - 3,5 - 1, 0 0,1 - - - - - - - - - -
c MBMgZn4RE1Zr
max. - - 5,0 0,15 1,75 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
EN- 3.5247 min. Rem. - 2,0 - 2,4 0,1 - - - - - - - - - -
MBMgRE3Zn2Zr
max. - - 3,0 0,15 4,0 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
MgREAgZr EN- 3.5250 min. Rem. - - - 1,5 0,1 1,3 - - - - - - 0,05 - -
d MBMgRE2Ag1Zr
max. - - 0,2 0,15 3,0 1,0 1,7 - - - - 0,01 0,01 0,10 0,005 0,01
11
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oSIST prEN 1753:2018
prEN 1753:2018 (E)
Alloy Material designation Composition in % (mass fraction)
group
Symbol Number Min. Mg Al Zn Mn RE Zr Ag Y Gd Li Th Si Fe Cu Ni Others
or a b each
max
EN- 3.5251 min. Rem. - - - 2,0 0,1 2,0 - - - - - - - - -
MBMgRE2Ag2Zr
max. - - 0,2 0,15 3,0 1,0 3,0 - - - - 0,01 0,01 0,03 0,005 0,01
EN- 3.5252 min. Rem. - - - 1,7 0,1 - - - - - -
MBMgAg3RE2Zr
max. - - 0,10 0,15 2,5 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
MgREGdZr EN- 3.5256 min. Rem. - 0,20 - 2,6 0,4 - - 1,0 - - - - - - -
MBMgRE3Gd1Zr
e
max. - - 0,50 0,03 3,1 1,0 0,05 - 1,7 - - 0,010 0,01 0,0020 0,01 0,01
f EN- 3.5260 min. Rem. - - - 2,4 0,1 - 3,7 - - - - - - - -
MgYREZr
MBMgY4RE3Zr
g max. - - 0,2 0,15 4,4 1,0 - 4,3 - 0,2 - 0,01 0,01 0,03 0,005 0,01
EN- 3.5261 min. Rem. - - - 1,5 0,1 - 4,75 - - - - - - - -
MBMgY5RE4Zr
max. - - 0,2 0,15 4,0 1,0 - 5,5 - 0,2 - 0,01 0,01 0,03 0,005 0,01
MgZnThZr EN- 3.5270 min. Rem. - 1,7 - - 0,4 - - - - 2,5 - - - - -
MBMgTh3Zn2Zr
max. - - 2,5 0,15 0,1 1,0 - - - - 3,5 0,01 0,01 0,03 0,005 0,01
EN- 3.5271 min. Rem. - 5,0 - - 0,4 - - - - 1,5 - - - - -
MBMgZn6Th2Zr
max. - - 6,0 0,15 0,1 1,0 - - - - 2,3 0,01 0,01 0,03 0,005 0,01
a
For maximum manganese content, see Annex B.
b
RE: rare earth.
c
Cerium rich.
d
Neodymium rich.
e
Neodymium is 2,6 % to 3,1 %; other rare earth metals may also be present to a total maximum of 0,4 %. These RE shall principally be cerium, lanthanum and praseodymium.
f
Neodymium and heavy RE rich.
g
Improved corrosion resistance may be obtained by reducing the maximum manganese content to 0,3 %, the maximum iron content to 0,01 %, the maximum copper content to
0,02 % and the maximum zinc + silver content to 0,2 %.
h
RE/Al ratio > 0,9.
12
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oSIST prEN 1753:2018
prEN 1753:2018 (E)
Table 2 — Chemical composition of magnesium alloy castings
Material designation Casting Composition in % (mass fraction)
Fe/Mn
process
Alloy group
Numbe Min. or Others
h
a b ratio
j
Symbol Mg Al Zn Zr Ag Y Gd Li Th Si Fe Cu Ni
Mn RE
r max. each
min. Rem. 5,5 - 0,1 - - - - - - - - - - - -
MgAl EN-MCMgAl6 3.5310 D -
max. - 6,5 0,20 0,4 - - - - - - - 0,20 0,05 0,20 0,01 0,05
min. Rem. 2,0 0,2 0,1 - - - - - - - - - - - -
MgAlZn EN-MCMgAl2Zn 3.5311 D -
max. - 2,5 0,8 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 2,6 0,7 0,1 - - - - - - - - - - - -
EN-MCMgAl3Zn1 3.5312 D -
max. - 3,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 5,5 0.7 0,1 - - - - - - - - - - - -
EN-MCMgAl6Zn1 3.5313 D -
max. - 6,5 1,4 0,4 - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 5,0 2,0 0,1 - - - - - - - - - - - -
EN-MCMgAl6Zn3 3.5314 S, K, L -
max. - 7,0 3,5 - - - - - - - - 0,30 0,05 0,20 0,01 0,05
min. Rem. 7,0 0,35 0,1 - - - - - - - - - - - -
EN-MCMgAl8Zn1 3.5315 D -
max. - 8,7 1,0 - - - - - - - - 0,10 0,005 0,030 0,002 0,01
min. Rem. 7,0 0,40 0,1 - - - - - - - - - - - -
EN-MCMgAl8Zn1 3.5315 S, K, L -
max. - 8,7 1,0 - - - - - - - - 0,20 0,005 0,030 0,001 0,01
min. Rem. 8,3 0,35 0,1 - - - - - - - - - - - -
EN-MCMgAl9Zn1(A) 3.5316 D 0,032
max. - 9,7 1,0 - - - - - - - - 0,10 0,005 0,030 0,002 0,01
min. Rem. 8,3 0,40 0,1 - - - - - - - - - - - -
EN-MCMgAl9Zn1(A) 3.5316 S, K, L 0,032
max. - 9,7 1,0 - - - - - - - - 0,20 0,005 0,030 0,001 0,01
min. Rem. 8,0 0,3 - - - - - - - - - - - - -
D, S, K,
EN-MCMgAl9Zn1(B) 3.5317 -
L
max. - 10,0 1,0 - - - - - - - - 0,3 0,03 0,20 0,01 0,05
min. Rem. 1,6 - 0,1 - - - - - - - - - - - -
MgAlMn EN-MCMgAl2Mn 3.5320 D 0,012
max. - 2,6 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
min. Rem. 4,4 - 0,1 - - - - - - - - - - - -
EN-MCMgAl5Mn 3.5321 D 0,015
max. - 5,5 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
13
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oSIST prEN 1753:2018
prEN 1753:2018 (E)
Material designation Casting Composition in % (mass fraction)
Fe/Mn
process
Alloy group
Numbe Min. or Others h
a b ratio
j
Symbol Mg Al Zn Zr Ag Y Gd Li Th Si Fe Cu Ni
Mn RE
r max. each
min. Rem. 5,5 - 0,1 - - - - - - - - - - - -
EN-MCMgAl6Mn 3.5322 D 0,021
max. - 6,5 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
min. Rem. 6,5 - 0,1 - - - - - - - - - - - -
EN-MCMgAl7Mn 3.5323 D -
max. - 7,5 0,2 - - - - - - - - 0,10 0,005 0,010 0,002 0,01
min. Rem. 1,8 - 0,1 - - - - - - - 0,7 - - - -
MgAlSi EN-MCMgAl2Si 3.5325 D 0,022
max. - 2,6 0,2 - - - - - - - - 1,2 0,005 0,010 0,002 0,01
min. Rem. 3,5 - 0,1 - - - - - - - 0,50 - - - -
EN-MCMgAl4Si 3.5326 D 0,022
max. - 5,0 0,2 - - - - - - - - 1,5 0,005 0,010 0,002 0,01
min. Rem. 3,5 - 0,15 3,5 - - - - - - - - - - -
c i
EN-MCMgAl4RE4 3.5328 D -
MgAlRE
max. - 4,5 0,20 0,50 4,5 - - - - - - 0,08 0,005 0,008 0,001 0,01
min. Rem. - - 0,50 - - - - - - - - - - - -
MgMn EN-MCMgMn1 3.5330 S, K, L -
max. - 0,01 0,05 1,3 - - - - - - - 0,05 0,02 0,02 0,001 0,05
min. Rem. - - 1,20 - - - - - - - - - - - -
EN-MCMgMn2 3.5331 S, K, L -
max. - 0,01 0,05 2,5 - - - - - - - 0,05 0,02 0,02 0,001 0,05
min. Rem. - 5,5 0,25 - - - - - - - - - 2,4 - -
MgZnCu EN-MCMgZn6Cu3Mn 3.5332 S, K, L -
max. - - 6,5 0,75 - - - - - - - 0,20 0,05 3,0 0,01 0,01
min. Rem. - - - - 0,3 - - - - - - - - - -
MgZr EN-MCMgZr 3.5340 S, K, L -
max. - - 0,10 0,15 - 0,8 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 2,5 - - 0,4 - - - - - - - - - -
MgZnZr EN-MCMgZn3Zr 3.5341 S, K, L -
max. - - 4,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 3,5 - - 0,4 - - - - - - - - - -
EN-MCMgZn5Zr 3.5342 S, K, L -
max. - - 5,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 5,5 - - 0,4 - - - - - - - - - -
EN-MCMgZn6Zr 3.5343 S, K, L -
max. - - 6,5 0,15 - 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - 3,5 - 0,75 0,4 - - - - - - - - - -
c
EN-MCMgZn4RE1Zr 3.5346 S, K, L -
MgZnREZr
max. - - 5,0 0,15 1,75 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
14
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oSIST prEN 1753:2018
prEN 1753:2018 (E)
Material designation Casting Composition in % (mass fraction)
Fe/Mn
process
Alloy group
Numbe Min. or Others h
a b ratio
j
Symbol Mg Al Zn Zr Ag Y Gd Li Th Si Fe Cu Ni
Mn RE
r max. each
min. Rem. - 2,0 - 2,5 0,4 - - - - - - - - - -
EN-MCMgRE3Zn2Zr 3.5347 S, K, L -
max. - - 3,0 0,15 4,0 1,0 - - - - - 0,01 0,01 0,03 0,005 0,01
min. Rem. - - - 1,5 0,4 1,3 - - - - - - 0,05 - -
d
EN-MCMgRE2Ag1Zr 3.5350 S, K, L -
MgREAgZr
max. - - 0,2 0,15 3,0 1,0 1,7 - - - - 0,01 0,01 0,10 0,005 0,01
min. Rem. - - - 2,0 0,4 2,0 - - - - - - - - -
EN-
...
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