EN 576:2003
(Main)Aluminium and aluminium alloys - Unalloyed aluminium ingots for remelting - Specifications
Aluminium and aluminium alloys - Unalloyed aluminium ingots for remelting - Specifications
This EN specifies the requirements for grades of refined aluminium and other unalloyed aluminium in the form of ingots for remelting. It specifies the designations for these grades, the conditions in which they are produced, their properties and the marks by which they are identified.
Aluminium und Aluminiumlegierungen - Unlegiertes Aluminium in Masseln - Spezifikationen
Diese Europäische Norm legt die Anforderungen an die Sorten von Reinstaluminium und anderem unlegiertem Aluminium in Masseln fest, die zum Wiedereinschmelzen verwendet werden. Sie legt die Bezeichnungen dieser Sorten, die Herstellungsbedingungen, die Eigenschaften sowie Kennzeichnungen zur Identifizierung fest.
Aluminium et alliages d'aluminium - Aluminium non allié en lingots pour refusion - Spécifications
La présente Norme européenne spécifie les caractéristiques des nuances d'aluminium non allié en lingots destinés à la refusion.
Elle spécifie la classification et la désignation de ces nuances, leurs conditions de production, leurs caractéristiques et leurs marques d'identification.
NOTE Des produits cités dans la présente Norme peuvent faire l'objet de brevet ou de demandes de brevets, et leur inclusion dans la présente Norme ne signifie en aucune façon l'attribution d'une licence au regard des droits attachés à de tels brevets.
Le CEN/TC 132 confirme que dans le cas où le détenteur d'un brevet refuse de céder des licences sur les produits normalisés sous des conditions raisonnables et non discriminatoires, alors ce produit serait éliminé de la Norme correspondante.
Aluminium and aluminium alloys - Unalloyed aluminium ingots for remelting - Specifications
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Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2004
1DGRPHãþD
SIST EN 576:1998
Aluminium and aluminium alloys - Unalloyed aluminium ingots for remelting -
Specifications
Aluminium and aluminium alloys - Unalloyed aluminium ingots for remelting -
Specifications
Aluminium und Aluminiumlegierungen - Unlegiertes Aluminium in Masseln -
Spezifikationen
Aluminium et alliages d'aluminium - Aluminium non allié en lingots pour refusion -
Spécifications
Ta slovenski standard je istoveten z: EN 576:2003
ICS:
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 576
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2003
ICS 77.150.10 Supersedes EN 576:1995
English version
Aluminium and aluminium alloys - Unalloyed aluminium ingots
for remelting - Specifications
Aluminium et alliages d'aluminium - Alunimium non allié en Aluminium und Aluminiumlegierungen - Unlegiertes
lingots pour refusion - Spécifications Aluminium in Masseln - Spezifikationen
This European Standard was approved by CEN on 9 October 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 576:2003 E
worldwide for CEN national Members.
Contents
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions.4
4 Ordering information .4
5 Requirements .5
5.1 Production and manufacturing processes.5
5.2 Quality control.5
5.3 Chemical composition.5
5.4 Freedom from defects and foreign material.5
5.5 Form of products .5
6 Product inspection and testing methods .6
6.1 General.6
6.2 Sampling and chemical analysis of main impurities.6
6.3 Sampling and chemical analysis of trace impurities .6
6.4 Sampling from ingots and chemical analysis.6
7 Inspection documents.7
8 Marking of products .7
9 Packaging .7
10 Delivery documents.7
11 Complaints.7
Annex A (normative) Writing rules for the designation and chemical composition of unalloyed
aluminium .9
Foreword
This document EN 576:2003 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 April 2004, and conflicting national standards shall be withdrawn at the latest by
April 2004.
Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 1 "Liquid metal,
unalloyed and alloyed ingots" to prepare the following standard :
EN 576, Aluminium and aluminium alloys - Unalloyed aluminium ingots for remelting – Specifications.
This document supersedes EN 576:1995.
This revised version specifies a modified list of grades of unalloyed aluminium together with a new designation
system which is specified in a new normative annex. The revision aligns this European Standard with common
rules of the international trade of unalloyed aluminium which are based on the designation system of the Aluminum
Association.
Annex A is normative.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,
Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies the requirements for grades of unalloyed aluminium in the form of ingots for
remelting.
It specifies the designations for these grades, the conditions in which they are produced, their properties and the
marks by which they are identified.
NOTE Some of the products listed in the present standard can be subject to patent or patent applications, and their listing
herein does not in any way imply the granting of a licence under such patent right.
CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licenses on standardised standard products
under reasonable and not discriminatory conditions, then this product shall be removed from the corresponding standard.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 12258-1, Aluminium and aluminium alloys - Terms and definitions - Part 1 : General terms.
prEN 14361, Aluminium and aluminium alloys - Chemical analysis - Sampling from metal melts.
prEN 14726, Aluminium and aluminium alloys - Chemical analysis - Guideline for spark optical emission
spectrometric analysis.
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 12258-1 apply.
4 Ordering information
The order, in the form as agreed between supplier and purchaser, shall contain the following information :
a) designation of the unalloyed aluminium according to this European Standard or the customer code ;
b) specification of the form of the product, including mass and dimensions of individual ingots and bundles ;
c) quantity :
mass (in metric tonnes) ;
quantity tolerances if required ;
d) any requirements differing from those specified in this European Standard, such as chemical composition ;
e) any additional requirements not specified in this European Standard, e. g. on marking and packaging of
products, special inspections ;
f) any requirements for inspection documents.
If special requirements are specified in the order agreed between supplier and purchaser which differ from
requirements specified in this European Standard, then these special requirements shall apply.
5 Requirements
5.1 Production and manufacturing processes
Unless otherwise specified on the order, the production and manufacturing processes shall be left to the discretion
of the manufacturer.
Unless it is explicitly stated on the order, no obligation shall be placed on the manufacturer to use the same
processes for subsequent and similar orders.
5.2 Quality control
The supplier shall be responsible for carrying out all inspection and tests required by this European Standard and
additional requirements, prior to shipment of the product. If the purchaser wishes to inspect the product at the
supplier's works, he shall stipulate this at the time of placing the order.
5.3 Chemical composition
Each grade of unalloyed aluminium with a specified minimum aluminium content, including refined aluminium, shall
be in accordance with the designations and chemical composition given in Table 1.
Each grade of unalloyed aluminium without a specified minimum aluminium content shall be in accordance with the
designations and chemical composition given in Table 2.
The compositions shown in Table 1 and Table 2 are given in mass percent maximum unless otherwise stated.
In interpreting the results of chemical analysis, the number representing the result of the determination of an
element content shall be rounded to the same number of decimal places as the corresponding number in this
standard.
The writing rules for designations and chemical composition shall be applied in accordance with annex A.
If the purchaser requires content limits for elements not specified in this European Standard, these limits shall be
agreed between supplier and purchaser and stated on the order.
5.4 Freedom from defects and foreign material
The ingots shall be free from asbestos and other hazardous foreign material and shall show no indication of
increased radioactivity.
To a standard agreed between supplier and purchaser, the ingots shall be reasonably free from :
a) visible surfaces defects such as grease, dirt, products of corrosion, dross or any other foreign bodies, including
paint apart from that which is approved for marking purposes ;
b) metallic or non-metallic inclusions ;
c) gas porosity.
The ingots can have shrinkage holes or cracks which can retain water and shall therefore be thoroughly dried and
preheated before charging to a furnace to avoid the risk of a violent explosion.
5.5 Form of products
There are several possible shapes of ingots, e.g :
trapezoidal which can be stacked. This type of ingot can have one or more notches to enable it to be divided
into pieces if required ;
T-bars, sows or other shapes.
The tolerances of the unit masses, the shape, the dimensions and the dimensional tolerances of the individual
ingots and bundles shall be defined by agreement between supplier and purchaser at the time of ordering.
6 Product inspection and testing methods
6.1 General
Sampling procedures and analytical tests shall be carried out in accordance with prEN 14726 and prEN 14361.
The melt shall be clearly identified with a traceable number. From each melt, analytical samples shall be taken
during the cast from the metal distribution system. The minimum number of samples for obtaining a representative
analytical result shall be justified.
Each analytical sample shall be suitably machined and, when analysed by emission spectrometry, shall be sparked
at least twice. The result of the analysis of the sample shall be the arithmetic mean of the values obtained by the
sparks.
Each sample shall meet the specified composition limits. The analysis of the melt shall be the arithmetic mean of
the analysis results of all the samples taken from this melt.
The manufacturer shall determine and periodically check the analytical accuracy of each element analysed.
He shall be able to demonstrate the validity of the whole test procedure, including sampling, sample preparation
and measurement.
6.2 Sampling and chemical analysis of main impurities
All analytical samples shall be analysed for the main impurities which are specified by the columns in Table 1 or
Table 2. The analytical result shall be indicated on the certificate of analysis.
6.3 Sampling and chemical analysis of trace impurities
The trace impurities are those impurities which are not specified by the columns in Table 1 and Table 2. For the
grades where maximum values of trace impurities are specified
...
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