1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 604-2 : 1997 The Eu
2、ropean Standard EN 604-2 : 1997 has the status of a British Standard ICS 77.150.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Aluminium and aluminium alloys Cast forging stock Part 2. Tolerances on dimensions and formBS EN 604-2 : 1997 This British Standard, having been p
3、repared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference NFE/35 Draft for comment 91/49170 DC ISBN 0 580 27
4、426 8 Amendments issued since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee NFE/35, Light metals and their alloys, upon which the following bodies were represented: Aluminium Fede
5、ration Aluminium Stockholders Association Association of Light Alloy Refiners Limited Magnesium Industry Council Ministry of Defence Society of Motor Manufacturers and Traders Ltd. The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Associati
6、on of British Welded Aluminium Tube Makers Institution of Structural Engineers Metal Packaging Manufacturers AssociationBS EN 604-2 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 604-2 3ii BSI 1997 BS EN 604-2 : 1997 National fore
7、word This Part of BS EN 604 has been prepared by Technical Committee NFE/35 and is the English language version of EN 604-2 : 1997 Aluminium and aluminium alloys Cast forging stock Part 2 : Tolerances on dimensions and form published by the European Committee for Standardization (CEN). This British
8、Standard has been prepared under the direction of the Engineering Sector Board and is the English language version of EN 604-2 : 1997, published by the European Committee for Standardization (CEN). Cross-references Publication referred to Corresponding British Standard EN 573-3 : 1995 BS EN 573 Alum
9、inium and aluminium alloys Chemical composition and form of wrought products Part 3 : 1995 Chemical composition EN 604-1 : 1997 BS EN 604 Aluminium and aluminium alloys Cast forging stock Part 1 : 1997 Technical conditions for inspection and delivery Compliance with a British Standard does not of it
10、self confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa ische
11、s Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members. Ref. No. EN 604-2 : 1997 E EUROPEAN STANDARD EN 604-2 NORME EUROPE ENNE EUROPA ISCHE NORM January 1997 ICS 77.120.10; 77.140.90 Descriptors: Aluminium products, aluminium alloys, f
12、orgings, dimensional tolerances, form tolerances English version Aluminium and aluminium alloys Cast forging stock Part 2: Tolerances on dimensions and form Aluminium et alliages daluminium Produits coule s et destiye sa la forge Partie 2: Tole rances sur dimensions et forme Aluminium und Aluminiuml
13、egierungen Gegossenes Schmiedevormaterial Teil 2: Grenzabmae und Formtoleranzen This European Standard was approved by CEN on 1996-12-19. 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 nationa
14、l standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any o
15、ther language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland
16、, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 604-2 : 1997 BSI 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 132, Aluminium and aluminium alloys, the secretariat of which is held by AFNOR. T
17、his 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 July 1997, and conflicting national standards shall be withdrawn at the latest by July 1997. This standard is part of a set of two standards. The othe
18、r standard is: EN 604-1 Aluminium and aluminium alloys Cast forging stock Part 1: Technical conditions for inspection and delivery According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria
19、, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Tolerances on dimensions and form 3 3.1 General 3 3.2 Tolerances
20、on dimensions 3 3.3 Tolerances on form 3Page 3 EN 604-2 : 1997 BSI 1997 1 Scope This Part of this standard specifies the tolerances on dimensions and form of cast aluminium and aluminium alloy forging stock for general engineering applications. The chemical compositions for these alloys are specifie
21、d in EN 573-3. The technical conditions for inspection and delivery of these products are specified in EN 604-1. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate place
22、s 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 referr
23、ed to applies. EN 573-3 Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition EN 604-1 Aluminium and aluminium alloys Cast forging stock Part 1: Technical conditions for inspection and delivery 3 Tolerances on dimensions and form 3.1 General Th
24、e tolerances stated below shall apply to round ingots, as cast or scalped on diameter and sawn to length and to rectangular ingots, scalped on faces and sawn to length and width. 3.2 Tolerances on dimensions 3.2.1 Round ingots (as cast or scalped) 3.2.1.1 Diameter The measurements shall be taken at
25、the two sawn ends on two diameters 90 apart. The limit deviations on the nominal diameter shall be: a) as cast: mm for ingot diameters not greater 22 0 than 200 mm; mm for ingot diameters greater than 200 mm 23 0 and not greater than 400 mm; mm for ingot diameters greater than 400 mm; 24 0 b) scalpe
26、d: mm for all ingot diameters. 22 0 3.2.1.2 Length The measurement shall be taken overall. The limit deviations on the nominal length shall be: 3 mm for ingot lengths not greater than 1200 mm; 15 mm for ingot lengths greater than 1200 mm. 3.2.2 Rectangular ingots (scalped) 3.2.2.1 Width The measurem
27、ent shall be taken overall. The limit deviations on the nominal width shall be: mm for all ingots widths. 0 +10 3.2.2.2 Thickness The measurement shall be taken at the two sawn ends on both sides of the ingot. The limit deviations on the nominal thickness shall be: 5 mm for all ingot thicknesses. 3.
28、2.2.3 Length The measurement shall be taken overall. The limit deviations on nominal length shall be: 25 mm for all ingot lengths. 3.3 Tolerances on form 3.3.1 Round ingots (as cast or scalped) 3.3.1.1 Perpendicularity Sawn ends of ingots shall be perpendicular to the longitudinal axis to (90 1). 3.
29、3.1.2 Straightness (as cast ingot only) The deflection measured on any generating line of the ingot shall be less than 3 mm per metre. The total deviation over the full length of the ingot shall not exceed 15 mm. 3.3.2 Rectangular ingots (scalped) 3.3.2.1 Perpendicularity Sawn faces of ingots shall
30、be perpendicular to the longitudinal or transverse axis, as applicable, to (90 1). 3.3.2.2 Flatness The deflection measured in any direction on any face of the ingot shall be less than 2 mm per metre.4 blank BSI 1997 BS EN 604-2 : 1997 List of references See national foreword.BSI 389 Chiswick High R
31、oad London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Instit
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