AS-1074-1989.pdf

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1、AS 10741989 Australian Standard? Steel tubes and tubulars for ordinary service Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Nov 2008 This Australian Standard was prepared by Committee WS/4, Steel Pipes and FittingsWater and Gas. It was approved on behalf of the Council of Standards Australia on 8

2、 February 1989 and published on 10 April 1989. The following interests are represented on Committee WS/4: Confederation of Australian Industry Metal Trades Industry Association of Australia Public Works Department, New South Wales The Australian Gas Association Water Resources Commission, Queensland

3、 Additional interests participating in preparation of Standard: Water Authority of Western Australia Review of Australian Standards. To keep abreast of progress in industry, Australian Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as nece

4、ssary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Australian Standards and related publications will be found in the Standards Australia Catalogue of Publications; this information is supple

5、mented each month by the magazine The Australian Standard, which subscribing members receive, and which gives details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australi

6、a, are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be made without delay in order that the matter may be investigated and appropriate action taken. This Standard was issued in draft form for comment as DR 88046. Accessed by UNIVERSITY OF SOUTH AUSTRAL

7、IA on 06 Nov 2008 AS 10741989 Australian Standard? Steel tubes and tubulars for ordinary service First published as AS B1051951. Second edition (endorsement of BS 1387:1957 with amendments1960. Revised and redesignated AS 10741971. Second edition 1976. Third edition 1980. Fourth edition 1989. PUBLIS

8、HED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) 1 THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 0 7262 5509 2 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Nov 2008 PREFACE This Standard was prepared by the Standards Australias Committee on Steel Pipes and FittingsWater and Gas to supersed

9、e AS 10741980, Steel tubes and tubulars threaded or suitable for threading with pipe threads of Whitworth form. This edition adopts the descriptions, dimensions and masses as specified in BS 138:1985, Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suita

10、ble for welding or for screwing to BS 21 pipe threads. This Standard does not indicate the services for which the tubes are appropriate. Where the use of tubes is not controlled by bylaws or regulations, reference should be made to the appropriate Code of Practice or application Standard. Some Codes

11、 of Practice for building relating to town gas and water, and also the relevant bylaws, preclude the use of light tubes for these services. If the application is for pressure purposes, reference should be made to AS CB18, SAA Pressure Piping CodePart 1: Ferrous piping. ? Copyright STANDARDS AUSTRALI

12、A Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia may be reproduced, stored in a retrieval system in any

13、 form or transmitted by any means without prior permission in writing from Standards Australia. Permission may be conditional on an appropriate royalty payment. Requests for permission and information on commercial software royalties should be directed to the head office of Standards Australia. Stan

14、dards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively inhouse by purchasers of the Standard without payment of a royalty or advice to Standards Australia. Standards Australia will also permit the inclusion of its copyright material

15、 in computer software programs for no royalty payment provided such programs are used exclusively inhouse by the creators of the programs. Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised.

16、 The number and date of the Standard should therefore be clearly identified. The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards

17、Australia at any time. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Nov 2008 CONTENTS Page SECTION 1.SCOPE AND GENERAL 1.1SCOPE 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2REFERENCED DOCUMENTS 4. . . . . . . . . . . . . . . . . .

18、 . . . . . . . . . . . . . . . . 1.3DEFINITIONS 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4DESIGNATION 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION 2.TUBES 2.1PROCESS OF MANUFACTURE 5.

19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2MATERIAL 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3DIMENSIONS OF TUBES 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4PERMISSIBLE VARIATIO

20、N IN THICKNESS, DIAMETER, AND MASS5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5SCREW THREADS 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6LENGTHS 6. . . . . . . . . . . . . . . . . . . . . . . .

21、 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7GALVANIZING 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8LEAK TIGHTNESS TEST 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.9DUCTILITY OF FINISHED TUBES 6. .

22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.10WORKMANSHIP 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.11MARKING 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.12PROTECTION 7. . .

23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION 3.SOCKETS 3.1PROCESS OF MANUFACTURE 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2MATERIAL 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24、 . . . . . . . 3.3DIMENSIONS 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4SCREW THREADS 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5GALVANIZING 8. . . . . . . . . . . . . . . . . . . . . . . . . .

25、. . . . . . . . . . . . . . . . . . . . . SECTION 4.TUBULARS 4.1GENERAL 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2THREADS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3GALVANIZ

26、ING 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4PIECES 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5NIPPLES 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27、. . . . . . . . . . . . . . . . . 4.6LONGSCREWS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7SOCKETS AND BACKNUTS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8BENDS AND SPRINGS 9. . . . . . . . . . . . . . . . . . . .

28、. . . . . . . . . . . . . . . . . . . . 4.9RETURN BENDS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDICES AINFORMATION TO BE SUPPLIED WITH ORDER 14. . . . . . . . . . . . . . . . . . . . BEDDY CURRENT TESTING 14. . . . . . . . . . . . . . . . . . .

29、 . . . . . . . . . . . . . . . . . . . CULTRASONIC EXAMINATION OF LONGITUDINAL WELD OF ELECTRIC RESISTANCE WELDED PIPE 15. . . . . . . . . . . . . . . . . . . . . . . . . . . Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Nov 2008 AS 107419894 STANDARDS AUSTRALIA Australian Standard Steel tubes and

30、 tubulars for ordinary service SECTION 1. SCOPE AND GENERAL 1.1 SCOPE. This Standard specifies requirements for threaded steel tubes and tubulars, and plain-end steel tubes suitable for screwing as specified in AS 1722.1, and of DN 8 to DN 150 inclusive (nominal size). Three wall thicknesses of tube

31、, designated Light, Medium, and Heavy, are specified in Section 2. NOTE: Guidelines on information that should be specified by the purchaser or agreed upon at the time of enquiry or order are given in Appendix A. 1.2 REFERENCED DOCUMENTS. The following documents are referred to in this Standard. AS

32、1355Glossary of terms used in connection with water and sanitary plumbing and drainage installations 1391Methods for tensile testing of metals 1650Galvanized coatings 1722Pipe threads of Whitworth form 1722.1Part 1: Sealing pipe threads 1835Tubes for pressure purposes Seamless steel 1836Tubes for pr

33、essure purposes Welded steel 2084Non-destructivetesting Eddycurrent testing of metal tubes BS 3894Method forconverting elongation values for steel Part 1: Carbon and low alloy steels ISO 65Carbon steel tubes suitable for screwing in accordance with ISO 7/1 1.3 DEFINITIONS.For the purpose of this Sta

34、ndard, the definitions given in AS 1355 and those below apply. 1.3.1Tubelength ofuniformcircularhollow section. 1.3.2 Socketinternally threaded coupling used in joining tubes. 1.3.3 Chamfer machined or cast surface in the form of a cone at the entrance of a thread to assist assembly and prevent dama

35、ge to the start of the thread. 1.3.4 Length of screwed-and-socketed tube. 1.3.4.1 Random length length of tube with one socket screwed on. 1.3.4.2Exactlength lengthof tubeexcluding socket. 1.3.5 Nominal size (DN)a numerical designation of size which is common to all components in a piping system oth

36、er than components designated by outside diameters or by thread size. It is a convenient round number for reference purposes and is only loosely related to manufacturing dimensions. NOTE: It is designated by DN followed by a number, e.g. DN 32. 1.4 DESIGNATION. Tubes and tubulars shall be designated

37、 according to their nominal size. Sockets and backnuts shall be designated according to the respective nominal sizes of the tubes for which they are intended. COPYRIGHT Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Nov 2008 5AS 10741989 SECTION 2. TUBES 2.1 PROCESS OF MANUFACTURE.Tubes may be eith

38、er welded or seamless. 2.2 MATERIAL. Tubes shall be manufactured from steel which shows, not more than 0.045 percent of sulfurandnotmorethan0.045percentof phosphorus. Carbon equivalent as calculated from the following equation shall not exceed 0.4: Carbon equivalent = Lengths or strips cut from sele

39、cted tubes and tested in accordance with AS 1391 shall show (a)minimum yield strength of 195 MPa; (b) a tensile strength of between 320 MPa and 460 MPa; and (c)an elongation of not less than 20 percent on a gauge length of 5.65 Sowhere Sois the original cross-sectional area of the test piece. NOTE:

40、Where other gauge lengths are used, the corresponding elongation on 5.65 Socan be obtained from BS 3894: Part 1. 2.3 DIMENSIONS OF TUBES. The dimensions of the tubes shall be as given in Tables 2.1, 2.2, and 2.3, as applicable, subject to the tolerances as specified in Clause 2.4. 2.4 PERMISSIBLEVAR

41、IATION INTHICKNESS, DIAMETER,ANDMASS.Thefollowing manufacturing tolerances shall be permitted on the tubes: (a)Thickness: Light welded tubes + unlimited, 8 percent. Medium and heavy tubes Welded. . . . . . . + unlimited, 10 percent. Seamless. . . . . + unlimited, 12.5 percent. (b)Outside diameter: L

42、ight tubes. . . . . . . . as given in Table 2.1. Medium tubes. . . . . . as given in Table 2.2. Heavy tubes. . . . . . . as given in Table 2.3. (c)Mass. The mean consignment mass for quantities of 150 m and over of one size shall not deviate from the standard mass by more than 4 percent. No single t

43、ube shall deviate from the standard mass by more than + 10, 8 percent. TABLE 2.1 DIMENSIONS OF STEEL TUBES LIGHT Nominal size Outside diameter mm Thickness mm Mass of black tube kg/m Min.Max. Plain or screwed ends Screwed and socketed DN 8 DN 10 DN 15 13.2 16.7 21.0 13.6 17.1 21.4 1.8 1.8 2.0 0.515

44、0.670 0.947 0.519 0.676 0.956 DN 20 DN 25 DN 32 26.4 33.2 41.9 26.9 33.8 42.5 2.3 2.6 2.6 1.38 1.98 2.54 1.39 2.00 2.57 DN 40 DN 50 DN 65 47.8 59.6 75.2 48.4 60.2 76.0 2.9 2.9 3.2 3.23 4.08 5.71 3.27 4.15 5.83 DN 80 DN 100 87.9 113.0 88.7 113.9 3.2 3.6 6.72 9.75 6.89 10.0 NOTE: Dimensions and masses

45、 are in accordance with ISO 65 (light series 2). TABLE 2.2 DIMENSIONS OF STEEL TUBES MEDIUM Nominal size Outside diameter mm Thickness mm Mass of black tube kg/m Min.Max. Plain or screwed ends Screwed and socketed DN 8 DN 10 DN 15 13.3 16.8 21.1 13.9 17.4 21.7 2.3 2.3 2.6 0.641 0.839 1.21 0.645 0.84

46、5 1.22 DN 20 DN 25 DN 32 26.6 33.4 42.1 27.2 34.2 42.9 2.6 3.2 3.2 1.56 2.41 3.10 1.57 2.43 3.13 DN 40 DN 50 DN 65 48.0 59.8 75.4 48.8 60.8 76.6 3.2 3.6 3.6 3.57 5.03 6.43 3.61 5.10 6.55 DN 80 DN 100 DN 125 88.1 113.3 138.7 89.5 114.9 140.6 4.0 4.5 5.0 8.37 12.2 16.6 8.54 12.5 17.1 DN 150164.1166.15

47、.019.720.3 NOTE: Dimensions and masses are in accordance with ISO 65. COPYRIGHT Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 06 Nov 2008 AS 107419896 2.5 SCREW THREADS. The screw threads of all threaded tubes shall comply with AS 1722.1, except as provided below and except that on Light tubes the ba

48、sic length of useful thread shall be reduced to 80 percent of the sum of the fitting allowance plus gauge length for pipe threads of series R and RC (see AS 1722.1) for the particular nominal size. Where Light tubes approach the low limits of outside diameter, some black threads (perfect at the root

49、 and imperfect at the crest) are to be expected beyond the gauge plane, but such black threads shall not be regarded as justification for the rejection of the tubes. NOTE: Care is necessary when hand screwing Light tubes. Tubes shall be supplied threaded with taper pipe threads. 2.6 LENGTHS. 2.6.1 Standard lengths. When so ordered, tubes shall be supplied in standard lengths of 6.50 0.08 m. 2.6.2 Exact lengths. Where exact lengths arespecified, either for threaded tubes or for plain end tubes, each tube shall be within +8, -0 mm of the specified