BS EN 573-4-2004 pdf download.Aluminium and aluminium alloys — Chemical composition and form of wrought products — Part 4: Forms of products.
This BS EN 573-4 gives the forms of pociucts wtuch are currentty available for wrought aluminium and aluminium alloys. for each maEor field of application
It applies to aluminium and aluminium alloys with the chemical compositions specified in EN 573-3.
NOTE Some of the products listed In the present standard can be sLAfecl So patent or patent apphcatmris, and eieW listing herein does not in any way Wnpfy the granting of a hc.nc. under sud’i patent rigi*.
CENfTC 132 aftwms at is ats policy that In the case when a patentee refuses to grant licences on standardised standwd products under reasonat,Ie and not descrinatory ccndons then this product shall be removed from the corresponding standard
It uses the tour-figure numerical and the alternative chemical symbol based alloy designation systems specified respectively in EN 573-1 and EN 573-2.
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 arty when incorporated In it by amenc*Tlent or revision. For undated references the latest edition of the publication referred to applies (Including amendments).
EN 573-2. Aluminium and aluminium alloys Chemical composition and lo.’m of wrought rxodtts – Pan 2: Chemical symbol based designation system
EN 573-3. Aluminium and aluminium alloys – Chemical composition and lorm of wrought pod ucts – Pan 3: Chemical composition,
EN 602. AJuminium and akimwiium alloys Wrought pockicts – Chemical composition of semi poducts used icr the taLwtcation of articles for use in contact with load.
3 ClassificatIon
For the purposes of this part of this European Standard, aluminium and aluminium alloys are classified into two classes. A and B. as follows
Class A Aluminium and aluminium alloys for the relevant field of application. for which the mechanical properties are specified En the corresponding European Standard see annex B);
Class B Aluminium and aluminium alloys produced In hmlted volume for the relevant field of application. andor Aluminium and &umWwum alloys used for special applEcatons not covered by a European Standard, The mechanical properties of these alloys are not specified in the corresponding European Standard when one exists.
NOTE I Tolsirancas on dI*neons and Im. as specáhed m the rvan Euvopean Standarc, apply to both Ctass A and Class W akanium and akjmimisn aloys
NOTE 2 Akimimtai and jminün aaoys for aerospac spplications, which ate standarzed by AECMA but stand outside the field of genemi .ngwwenng. are In Ctass 8 Their mechanical properties and toleranCes on lomi and cmeneione we specified ii the relev3nl Euvopean Aerospace Standards
4 Forms of products
Tables 1108 give, for each map field of phcabon. me avadabality of each alloy as defined by their cfassiiication as a Class or a Class alloy.
The last column indicates whether the alloy is In conformity (Y or N (Yes or No)J with EN 602. which specifies the requirements for the chemical compositn of wrought aluminium and aluminium aoys used for the production of materials and articles intended to be in contact with food,
The informative annex B indicates which European Standards spedty mechanical properties for the product groups according to Tales 1 loB.
A.1 General principles
Prior to the introduction of new alloys into CENITC 132 product standards, they shall be registered m EN 573-3 and EN 573-4 Only those alloys wtikh are rated tiass K in EN 573-4 can be specihed in product standards.
Prior to the elimination of existing alloys from EN 573-3 and EN 573-4. they shall be deleted from all the relevant product standards Th. same shall ,ply or the transformation of an A-rating into a B-rating In EN 573-4.
Proposals for the registration of new alloys ii CENITC 132 standards or the elimmabon of existing alloys or the modification of a rating in EN 573-3 and EN 573-4 shall be made by the National Standards Organizations to the Secretariat of CENITC 132 Such proposal can be mede at any time.
CENITC 132 shall prepare a draft of an addendum or of a revision, as appropriate. of EN 573-3 and EN 573.4. This draft shall be processed iolowing the usual CEN/CENELEC procedures.
A..2 Rules for registration of new alloys
A.2.1 General conditions
Only those aluminium and aluminium alloys shall be considered for inclusion in CENTC 132 standards which are
-registered as active alloys in the Registration Record – International Alloy Designations and Chemical Composition bmits for Wrought Aluminum and Wrought Aluminum Alloys.. LII Teal Sheets. for the same numerical designation and the same composition limits for all elements;
• currenity manufactured and sold in at least one CEN member cotmtry. in at least One of die product forms listed In
EN 573-4.
If at least one National Standards Organisatlon suppons the proposal and if the conditions for tlass A a$o are not met, an alloy will be rated CIass B.
Aluminium and aluminium alloys which are sold only for qualification purposes shall not be Included into CENIIC 132 standards
A.2.2 Additional conditions for ‘Class A’ alloys
The registration ol an alloy as “Class A alloy, as defined in EN 573-4. shall be considered only for each relevant product form
– a proposal for mechanical properties ii supplied by the National Standards Organisahon;
– at least three countries in the relevant wodung group are in favour of registration under tiass K.BS EN 573-4-2004 pdf download.