1、 ISO 2012 Wrought aluminium and aluminium alloys Cold-drawn rods/bars, tubes and wires Part 6: Drawn round tubes Tolerances on form and dimensions Aluminium et alliages daluminium corroys Barres, tubes et fils tirs froid Partie 6: Tubes ronds tirs Tolrances sur forme et dimensions INTERNATIONAL STAN
2、DARD ISO 6363-6 First edition 2012-07-15 Reference number ISO 6363-6:2012(E) ISO 6363-6:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means
3、, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrig
4、htiso.org Web www.iso.org Published in Switzerland ISO 6363-6:2012(E) ISO 2012 All rights reserved iii Contents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 T erms and definitions . 1 4 Materials . 1 5 Tolerances on dimensions 2 5.1 General . 2 5.2 Diameter Round tube 3 5.3 Wall thickness
5、 Round tube 4 5.4 Fixed-length tolerances . 4 5.5 Squareness of cut ends . 5 6 Tolerances on form . 5 6.1 General . 5 6.2 Straightness 5 Bibliography . 7 ISO 6363-6:2012(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO m
6、ember bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governm
7、ental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Dir
8、ectives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bo
9、dies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 6363-6 was prepared by Technical Committee ISO/TC 79, Light metals and their
10、 alloys, Subcommittee SC 6, Wrought aluminium and aluminium alloys. ISO 6363 consists of the following parts, under the general title Wrought aluminium and aluminium alloys Cold-drawn rods/bars, tubes and wires: Part 1: Technical conditions for inspection and delivery Part 2: Mechanical properties P
11、art 3: Drawn round bars and wires Tolerances on form and dimensions (symmetric plus and minus tolerances on diameter) Part 4: Drawn rectangular bars and wires Tolerances on form and dimensions Part 5: Drawn square and hexagonal bars and wires Tolerances on form and dimensions Part 6: Drawn round tub
12、es Tolerances on form and dimensions iv ISO 2012 All rights reserved INTERNATIONAL STANDARD ISO 6363-6:2012(E) Wrought aluminium and aluminium alloys Cold-drawn rods/ bars, tubes and wires Part 6: Drawn round tubes Tolerances on form and dimensions 1 Scope This part of ISO 6363 specifies the toleran
13、ces on form and dimensions of wrought aluminium and aluminium alloy drawn round tubes (seamless and porthole). This part of ISO 6363 applies to cold-drawn round tubes. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated referenc
14、es, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6363-1, Wrought aluminium and aluminium alloys Cold-drawn rods/bars, tubes and wires Part 1: Technical conditions for inspection and delivery 3 T erms and
15、 definitio ns For the purposes of this document, the terms and definitions given in ISO 6363-1 apply. 4 Materials For the purposes of this part of ISO 6363, wrought aluminium and aluminium alloys are divided into two groups, which correspond to varying difficulty whenever manufacturing the products.
16、 The division into group I and group II of the most commonly used general engineering alloys is specified in Table 1. Grouping of other alloys is subject to agreement between the purchaser and supplier. Table 1 Alloy group Group I 1050, 1050A, 1070, 1100, 1200, 1350 3003, 3102, 3103, 3203 5005, 5005
17、A, 5019, 5049, 5050, 5051, 5051A, 5052, 5056, 5083, 5086, 5154, 5154A, 5251, 5754 Group II 2007, 2011, 2011A, 2014, 2014A, 2017, 2017A, 2024, 2030 6018, 6056, 6060, 6061, 6063, 6063A, 6081, 6082, 6181, 6261, 6262, 6463 7003, 7005, 7020, 7021, 7022, 7049A, 7050, 7075, 7108, 7108A, 7204 NOTE The four-
18、digit numbers listed are taken from the Registration of International Alloy Designations and Chemical Composition Limits for Wrought Aluminium Alloys (also known as “Teal sheets”) 1 (published by the Aluminum Association, USA). ISO 2012 All rights reserved 1 ISO 6363-6:2012(E) 5 Tolerances on dimens
19、ions 5.1 General Whenever outside diameter, D o , inside diameter, D i , and wall thickness, t, are all specified, standard tolerances shall apply to any two of these dimensions, but not to all three. As a result, the purchaser shall only state two nominal dimensions on any given order. For outside
20、diameter, inside diameter and wall thickness, t, see Figure 1. Key D iinside diameter (ID) D ooutside diameter (OD) Figure 1 Round tube 2 ISO 2012 All rights reserved ISO 6363-6:2012(E) 5.2 Diameter Round tube Tolerances on diameter for round tubes shall be in accordance with Table 2. Table 2 Tolera
21、nces on diameter for round tubes Dimensions in millimetres Diameter (OD or ID) Tolerance on diameter for round tubes Maximum allowable deviation of diameter at a ny p oint f ro m specified diamet er a Maximum allowable deviation of mean diamet er f ro m specified diamet er b Alloy group I c Alloy gr
22、oup II c Alloy groups I and II c 4 OD or ID 12 0,08 0,15 0,08 12 OD or ID 25 0,10 0,20 0,10 25 OD or ID 50 0,13 0,25 0,13 50 OD or ID 75 0,15 0,30 0,15 75 OD or ID 125 0,20 0,41 0,20 125 OD or ID 150 0,25 0,51 0,25 150 OD or ID 200 0,38 0,76 0,38 200 OD or ID 250 0,51 1,0 0,51 250 OD or ID 300 0,64
23、1,3 0,64 300 OD or ID 320 0,76 1,5 0,76 Whenever the tolerance is specified only for either the plus or the minus side, the values in this table shall be doubled. Tolerances on dimensions exceeding the specified range shall be agreed upon between the purchaser and the supplier. aThese values are not
24、 applied to the tubes of temper grade O, coiled tubes and tubes with wall thickness less than 2,5 % of specified outside diameter. bThe mean diameter is defined as the average value of measurements carried out at two arbitrary points at right angles to each other. cSee Table 1. ISO 2012 All rights r
25、eserved 3 ISO 6363-6:2012(E) 5.3 Wall thickness Round tube The tolerances on wall thickness variation shall be in accordance with Table 3. Table 3 Tolerances on wall thickness of cold-drawn tubes Wall thickness a t Tolerance Maximum allowable deviation of wall thickness at a ny p oint f ro m specifi
26、ed wa ll thickness Maximum allowable deviation of mean wa ll thickness f ro m specified wa ll thickness b Alloy group I c Alloy group II c Alloy groups I and II c 0,3 t 0,8 0,05 10 % of specified wall thickness, but with 0,08 as minimum 0,05 0,8 t 1,2 0,08 0,08 1,2 t 2 0,10 0,10 2 t 3 0,15 0,13 3 t
27、5 0,20 0,15 5 t 7 0,30 0,20 7 t 9 0,51 0,38 9 t 12 0,76 0,51 12 t 15 1,0 0,64 15 t 19 1,3 0,76 19 t 20 1,5 0,89 Whenever the tolerance is specified only for either the plus or the minus side, the values in this table shall be doubled. Tolerances on dimensions exceeding the specified range shall be a
28、greed upon between the purchaser and the supplier. aIn the case where the outside diameter and inside diameter of tube are specified, apply the tolerance value specified in the column “Maximum allowable deviation of wall thickness at any point from specified wall thickness”, taking mean wall thickne
29、ss as the wall thickness. bThe mean wall thickness is defined as the average value of measurements carried out at two arbitrary positions facing each other with the pipe axis between them. 5.4 Fixed-length tolerances Tolerances on fixed length shall be in accordance with Table 4. 4 ISO 2012 All righ
30、ts reserved ISO 6363-6:2012(E) Ta b l e 4 T oleranc es on fix ed length Dimensions in millimetres Outside diameter OD T olerance on fix ed lengths L L 3 500 3 500 L 9 000 9 000 L 15 000 OD 6 0 7 + 0 10 + 0 13 + 6 OD 75 0 4 + 0 7 + 0 10 + 75 OD 150 0 5 + 0 8 + 0 11 + Tolerances on dimensions exceedin
31、g the range of specified dimensions shall be agreed upon between the purchaser and the supplier. 5.5 Squareness of cut ends The squareness of cut ends shall be within half of the fixed-length tolerance range specified in Table 4 for both fixed and random lengths. For example for a fixed-length toler
32、ance of 0 10 +mm, the squareness of cut ends shall be within 5 mm. 6 Tolerances on form 6.1 General Tolerances on form for O temper shall be subject to agreement between the purchaser and supplier. 6.2 Straightness The straightness tolerance of round tubes is specified in Table 5. ISO 2012 All right
33、s reserved 5 ISO 6363-6:2012(E) Table 5 Tolerances on straightness of round tube Dimensions in millimetres Outside diameter OD Tolerances on straightness of round tube a Key 1 straightness Maximum allowable deviation of straightness for any 300 mm length Maximum allowable deviation of straightness f
34、or total length L b OD 9 13 13 L 300 9 OD 150 0,3 0,3 L 300 Tolerance on dimensions exceeding the range of specified dimensions shall be agreed upon between the purchaser and supplier. aThese are values obtained by placing the tube on a flat surface, so that the weight of the tube minimizes the devi
35、ation. These values do not apply to temper grade O. bWhenever the total length of tube does not constitute an integral multiple of 300 mm, the tolerance is determined by rounding up fractions to a unit for every 300 mm. 6 ISO 2012 All rights reserved ISO 6363-6:2012(E) Bibliography 1 Registration of
36、 International Alloy Designations and Chemical Composition Limits for Wrought Aluminium Alloys (also known as “Teal sheets”). The Aluminum Association, Arlington, VA. Available at: http:/www.aluminum.org/tealsheets ISO 2012 All rights reserved 7ISO 6363-6:2012(E) ISO 2012 All rights reserved ICS 23.040.15; 77.150.10 Price based on 7 pages
