1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1592-4 : 1998 The E
2、uropean Standard EN 1592-4 : 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 HF seam welded tubes Part 4. Tolerances on dimensions and form for square, rectangular and shaped tubesThis Briti
3、sh Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 March 1998 BSI 1998 ISBN 0 580 28820 X BS EN 1592-4 : 1998 Amendments issued since publication Amd. No. Date Text affected Natio
4、nal foreword This British Standard is the English language version of EN 1592-4 : 1997 published by the European Committee for Standardization (CEN). Together with BS EN 1592-1 : 1998, BS EN 1592-2 : 1998 and BS EN 1592-3 : 1998 it supersedes BS 4300-1 : 1967 which is withdrawn. The UK participation
5、 in its preparation was entrusted by Technical Committee NFE/35, Light metals and their alloys, to Subcommittee NFE/35/5, Wrought aluminium and aluminium alloys, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the
6、interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Stand
7、ards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Compliance with a Bri
8、tish Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation
9、Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1592-4 : 1997 E EUROPEAN STANDARD EN 1592-4 NORME EUROPE ENNE EUROPA ISCHE NORM Octobe
10、r 1997 ICS 77.150.10 Descriptors: Aluminium, aluminium alloys, aluminium tubes, welded tubes, dimensional tolerances, form tolerances English version Aluminium and aluminium alloys HF seam welded tubes Part 4: Tolerances on dimensions and form for square, rectangular and shaped tubes Aluminium et al
11、liages daluminium Tubes e lectrosoude s HF Partie 4: Tole rances sur dimensions et forme des tubes a section carre e, rectangulaire ou profile e Aluminium und Aluminiumlegierungen HF-la ngsnahtgeschweite Rohre Teil 4: Grenzabmae und Formtoleranzen fu r quadratische, rechteckige und geformte Rohre Th
12、is European Standard was approved by CEN on 19 September 1997. 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 ref
13、erences 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 other language made by translation under the responsibility of a CEN member
14、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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal
15、, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1592-4 : 1997 BSI 1998 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. This European Standard shall be given the status of a natio
16、nal standard, either by publication of an identical text or by endorsement, at the latest by April 1998, and conflicting national standards shall be withdrawn at the latest by April 1998. Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 12, HF seam welded tubes, t
17、o prepare the following standard: EN 1592-4 Aluminium and aluminium alloys HF seam welded tubes Part 4: Tolerances on dimensions and form for square, rectangular and shaped tubes This standard is part of a series of four standards. The other standards deal with: EN 1592-1 Aluminium and aluminium all
18、oys HF seam welded tubes Part 1: Technical conditions for inspection and delivery EN 1592-2 Aluminium and aluminium alloys HF seam welded tubes Part 2: Mechanical properties EN 1592-3 Aluminium and aluminium alloys HF seam welded tubes Part 3: Tolerances on dimensions and form for circular tubes Acc
19、ording 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, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portug
20、al, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 1 Scope 3 2 Normative references 3 3 Dimensions 3 4 Tolerances on dimensions 3 4.1 Dimensions across flats (tolerances excluding flatness) 3 4.2 Thickness 3 4.3 Length 4 5 Tolerances on shape 4 5.1 Straightness 4 5.2 Flatn
21、ess (convexity or concavity) 4 5.3 Perpendicularity of cut ends 5 5.4 Twist 6 5.5 External radii 6 5.6 Deburring 6 5.7 Weld fins 6 5.8 Shaped welded tubes 6Page 3 EN 1592-4 : 1997 BSI 1998 Figure 1. Dimensions across flats 1 Scope This Part of EN 1592 specifies the tolerances on dimensions and form
22、of square, rectangular and shaped HF seam welded tubes. These tubes are manufactured from rolled aluminium alloy strip longitudinally welded in a continuous process by the passage of an electric current across the abutting edges without the addition of filler metal. This standard also applies to tub
23、es manufactured from aluminium alloy strip which is painted, lacquered or anodized prior to forming. Technical conditions for inspection and delivery are specified in EN 1592-1. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publicatio
24、ns. 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. Fo
25、r undated references the latest edition of the publication referred to applies. EN 1592-1 Aluminium and aluminium alloys HF seam welded tubes Part 1 : Technical conditions for inspection and delivery 3 Dimensions The dimensions of tubes shall be designated by the two extreme outside dimensions and w
26、all thickness. 4 Tolerances on dimensions 4.1 Dimensions across flats (tolerances excluding flatness) The dimensions across flats shall be measured as shown in figure 1. The tolerances on dimensions across flats shall be taken at position 1 and 2 in accordance with table 1. Table 1. Tolerances on di
27、mensions across flats excluding flatness Dimensions in millimetres Nominal dimensions B or H Tolerances B or H# 15 0,08 15 15 mm, the measurements shall be taken using a calliper gauge with an accuracy of at least 1/50th of a millimetre. All measurements shall be taken at least 100 mm from each end
28、of the tube. 4.2 Thickness The tolerances on thickness shall be in accordance with table 2. Table 2. Tolerances on thickness Dimensions in millimetres Nominal thickness t Tolerances 0,6# t# 1,0 0,05 1,0 t# 2,5 0,08Page 4 EN 1592-4 : 1997 BSI 1998 Figure 2. Length measurement Figure 3. Measurement of
29、 deviation from straightness These tolerances are not applicable to the weld fin and corner radii of square and rectangular tubes. Other thicknesses and tolerances are available by written agreement between producer and purchaser. 4.3 Length Tubes shall be supplied in one of the following ways: rand
30、om lengths, subject to a tolerance of 100 mm; specified cut lengths with the tolerances in accordance with table 3. Table 3. Tolerances on specified cut length Dimensions in millimetres Specified length L Tolerances L 1000 1,0 1000# L 3000 1,5 3000# L 7000 2,0 7000# L 3,0 In case of dispute the leng
31、th shall be measured as shown in figure 2, the tube being placed on a flat surface with 908 angle plates abutted on each end. The measurement shall be taken across the total gap l between plates. 5 Tolerances on shape 5.1 Straightness Deviation from straightness shall be measured as shown in figure
32、3. The deviation F measured on any 1 m length taken at random along the length of the tube, shall not exceed 1,6 mm. The maximum deviation E, expressed in millimetres, measured over the entire length of the tube shall not exceed 1,63 L (in metres). 5.2 Flatness (convexity or concavity) The deviation
33、 from flatness Y shall be measured as shown in figure 4. The tolerances on flatness shall be in accordance with table 4. All measurements shall be taken at least 100 mm from each end of the tube.Page 5 EN 1592-4 : 1997 BSI 1998 Figure 4. Measurement of deviation from flatness Figure 5. Measurement o
34、f deviation from perpendicularity Table 4. Tolerances on flatness (convexity or concavity) Dimensions in millimetres Nominal dimensions B or H Limit deviation Y B or H# 15 0,05 15 7 0 0,40 5.3 Perpendicularity of cut ends The deviation from perpendicularity of the cut ends shall be measured as shown
35、 in figure 5. The tolerances from perpendicularity shall be in accordance with table 5. Table 5. Tolerances on perpendicularity of cut ends Dimensions in millimetres Nominal width B Tolerance P 5# B# 10 0,075 10 70 0,75 For specific cut length orders, this deviation shall be included in the toleranc
36、e over the total length (see 4.3).Page 6 EN 1592-4 : 1997 BSI 1998 Figure 6. Measurement of twist 5.4 T wist Twist shall be measured on a 1 m section at any position along the length of the tube (see figure 6). The twist tolerances shall be in accordance with table 6. Table 6. Twist tolerances Dimen
37、sions in millimetres Nominal width B T wist tolerance per 1 000 mm of length over the total length 5# B# 10 0,15 0,7 10 70 1,5 7,5 5.5 External radii Unless otherwise stated on the order the tolerance on external radii of square and rectangular sections are 0,5 mm. 5.6 Deburring Tubes shall not be s
38、upplied deburred (i.e. minimal end burrs which do not adversely affect the end use shall be permissible). 5.7 Weld fins The external weld fin shall be removed completely (i.e. flush with the outside surface of the tube). The position of the weld fin shall be as specified by the producer. 5.8 Shaped
39、welded tubes Shaped welded tubes shall be produced to the purchasers specifications with tolerances in accordance with 4.1 measured across outside dimensions.blankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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