1、June 2008DEUTSCHE NORM English price group 7No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.150.10!$O+i“1440870www.
2、din.deDDIN EN 754-3Aluminium and aluminium alloys Cold drawn rod/bar and tube Part 3: Round bars, tolerances on dimensions and formEnglish version of DIN EN 754-3:2008-06Aluminium und Aluminiumlegierungen Gezogene Stangen und Rohre Teil 3: Rundstangen, Grenzabmae und FormtoleranzenEnglische Fassung
3、DIN EN 754-3:2008-06SupersedesDIN EN 754-3:1996-01www.beuth.deDocument comprises 9 pagesDIN EN 754-3:2008-06 2 National foreword This standard has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys” (Secretariat: AFNOR, France), Working Group WG 5 “Extruded and drawn pro
4、ducts” (Secretariat: SN, Norway). The responsible German body involved in its preparation was the Normenausschuss Nichteisenmetalle (Nonferrous Metals Standards Committee), Technical Committee NA 066-01-04 AA Strangpresserzeugnisse. Amendments This standard differs from DIN EN 754-3:1996-01 as follo
5、ws: a) The standard has been editorially revised to bring this part in line with the other parts of EN 754. Previous editions DIN 1798: 1937-06, 1941-05, 1954-05, 1968-02, 1986-09 DIN EN 754-3: 1996-01 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 754-3March 2008ICS 77.150.10 Supersedes EN 754-3
6、1995 English VersionAluminium and aluminium alloys - Cold drawn rod/bar and tube -Part 3: Round bars, tolerances on dimensions and formAluminium et alliages daluminium - Barres et tubes tirs -Partie 3: Barres rondes, tolrances sur dimensions etformeAluminium und Aluminiumlegierungen - Gezogene Stan
7、genund Rohre - Teil 3: Rundstangen, Grenzabmae undFormtoleranzenThis European Standard was approved by CEN on 10 February 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard w
8、ithout any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other languag
9、e made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,Fra
10、nce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NO
11、RMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 754-3:2008: EEN 754-3:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Tolerances on dimensions .4 2.1 Diameter4 2.2 Lengt
12、h .4 2.3 Squareness of cut ends 5 3 Tolerances on form5 3.1 Ovality .5 3.2 Straightness .5 Bibliography 7 DIN EN 754-3:2008-06 EN 754-3:2008 (E) 3 Foreword This document (EN 754-3:2008) has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys”, the secretariat of which is
13、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 September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008. This document supersedes EN 75
14、4-3:1995. Within its programme of work, Technical committee CEN/TC 132 entrusted CEN/TC 132/WG 5 “Extruded and drawn products“ to revise EN 754-3:1995. The following technical modifications have been introduced during the revision: Only editorial changes to bring this part in line with the other par
15、ts of EN 754 EN 754 comprises the following parts under the general title “Aluminium and aluminium alloys Cold drawn rod/bar and tube“: Part 1: Technical conditions for inspection and delivery Part 2: Mechanical properties Part 3: Round bars, tolerances on dimensions and form Part 4: Square bars, to
16、lerances on dimensions and form Part 5: Rectangular bars, tolerances on dimensions and form Part 6: Hexagonal bars, tolerances on dimensions and form Part 7: Seamless tubes, tolerances on dimensions and form Part 8: Porthole tubes, tolerances on dimensions and form Attention is drawn to the possibil
17、ity that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licenses on standardized standards
18、 products under reasonable and not discriminatory conditions then this product shall be removed from the corresponding standard. 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, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 754-3:2
20、008-06 EN 754-3:2008 (E) 4 1 Scope This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy cold drawn round bars having diameters in the range from 3 mm up to and including 100 mm. The temper designations used in this part are according to EN 515. 2 Tolerances
21、 on dimensions 2.1 Diameter The tolerances on diameter are specified in Table 1. Table 1 Diameter tolerances Dimensions in millimetres Diameter D Over Up to and including Tolerances 3 6 08,006 10 09,0010 18 11,0018 30 13,0030 50 16,0050 65 19,0065 80 30,0080 100 35,002.2 Length If fixed lengths are
22、to be supplied, this shall be stated in the order document. The fixed length tolerances are specified in Table 2. DIN EN 754-3:2008-06 EN 754-3:2008 (E) 5 Table 2 Fixed length tolerances Dimensions in millimetres Diameter D Tolerances on fixed length From Up to and including L 2 000 2 000 5 000 3 10
23、0 05+07+010+If no fixed or minimum length is specified in the order, round drawn bars may be delivered in random lengths. The actual lengths and tolerances on random lengths shall be agreed between supplier and purchaser. 2.3 Squareness of cut ends The squareness of cut ends shall be within half of
24、the fixed length tolerance range (Table 2) for both fixed and random lengths, (e.g. for a fixed length tolerance of10 0 +mm the squareness of cut ends shall be within 5 mm). 3 Tolerances on form 3.1 Ovality Ovality is the difference between the maximum and minimum diameters measured in one cross-sec
25、tion. The maximum permissible ovality is 50 % of the tolerance range specified in Table 1, (e.g. for a diameter tolerance of 0 0,08mm the maximum permissible ovality is 0,04 mm). 3.2 Straightness Deviations from straightness, hsand ht,shall be measured as shown in Figure 1 with the round bar placed
26、on a horizontal base plate so that its mass decreases the deviation. The straightness tolerances are specified in Table 3. (The straightness tolerance htapplies to the whole length, e.g. for a length of 6 m the maximum deviation from straightness htis the value given in the table multiplied by 6 m).
27、 For round bars with diameter less than 10 mm, the straightness tolerances shall be agreed upon between supplier and purchaser. The straightness tolerances apply to round bars with a diameter greater than 10 mm in all tempers except O and Tx51. If a straightness tolerance is required for either O or
28、 Tx51 temper, it shall be agreed between supplier and purchaser. DIN EN 754-3:2008-06 EN 754-3:2008 (E) 6 Key 1 base plate 2 straight edge Figure 1 Measurement of deviation from straightness Table 3 Straightness tolerances Dimensions in millimetres Diameter D From Up to and including Maximum deviation from straightness per metre length ht/length mm/m Maximum localized kink in any 300 mm portion Hs10 100 2 0,6 DIN EN 754-3:2008-06 EN 754-3:2008 (E) 7 Bibliography 1 EN 515, Aluminium and aluminium alloys Wrought products Temper designations DIN EN 754-3:2008-06
