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1、AS 15792001 Australian Standard Arc-welded steel pipes and fittings for water and wastewater AS 1579 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 This Australian Standard was prepared by Committee WS-009, Rolled and Welded Steel Pipes. It was approved on behalf of the Council of Standard
2、s Australia on 25 May 2001 and published on 12 July 2001. The following interests are represented on Committee WS-009: Water Services Association of Australia Australian Chamber of Commerce and Industry Australian Industry Group Bureau of Steel Manufacturers New Zealand Manufacturers Federation SunW
3、ater Water Corporation of Western Australia Central Highlands Water Hunter Water Australia Sydney Water Corporation Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically review
4、ed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detai
5、led information about Standards can be found by visiting the Standards Australia web site at .au and looking up the relevant Standard in the on-line catalogue. Alternatively, the printed Catalogue provides information current at 1 January each year, and the monthly magazine, The Australian Standard,
6、 has a full listing of revisions and amendments published each month. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at .au, or write to the Chief Executive, Sta
7、ndards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001. This Standard was issued in draft form for comment as DR 99493. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 15792001 Australian Standard Arc-welded steel pipes and fittings for water and wastewater Originated as AS A
8、1251963. Previous edition AS 15791993. Third edition 2001. COPYRIGHT Standards Australia International All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publis
9、her. Published by Standards Australia International Ltd GPO Box 5420, Sydney, NSW 2001, Australia ISBN 0 7337 3941 5 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 157920012 PREFACE This Standard was prepared by the Standards Australia Committee WS-009, Rolled and Welded Steel Pipes to
10、supersede AS 15791993. The objective of this draft is to provide designers of rolled and welded steel pipe with requirements for design of steel pipe, and means of demonstrating compliance with the Standard. The main changes in this revision are the following: (a)The provision of design methods that
11、 do not require hydrostatic testing in order to demonstrate compliance. (b)The inclusion of joints, joint dimensions and bends (c)Details of testing for steel piling. This Standard may be used in conjunction with Standards for the protection of pipes and piles, which are referred to in the document.
12、 Statements expressed in mandatory terms in notes to tables are deemed to be requirements of this Standard. The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, where
13、as an informative appendix is only for information and guidance. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 157920013 CONTENTS Page SECTION 1SCOPE AND GENERAL 1.1SCOPE.4 1.2REFERENCED DOCUMENTS.4 1.3DEFINITIONS.5 1.4MARKING6 1.5INFORMATION TO BE SUPPLIED BY THE PURCHASER6 1.6COATING
14、 AND LINING6 1.7HANDLING, LIFTING AND STORAGE.7 1.8EFFECT ON WATER .7 SECTION 2RATED PRESSURE 2.1HYDROSTATICALLY TESTED PIPE.8 2.2NON-HYDROSTATICALLY TESTED PIPE.8 2.3FITTINGS .8 SECTION 3MANUFACTURE 3.1PIPE AND PILES9 3.2FITTINGS .10 3.3JOINTS11 SECTION 4TESTING 4.1PIPE.12 4.2PILES 12 4.3FITTINGS .
15、12 4.4JOINTS13 APPENDICES AMEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD .15 BPURCHASING GUIDELINES21 CISO STEEL PIPE SIZES23 DSUGGESTED DIMENSIONS OF BENDS AND DESCRIPTIONS OF FITTINGS24 ETYPICAL EXAMPLES OF JOINTS.31 FHYDROSTATIC TEST METHOD32 GMETHOD FOR TYPE TESTING OF ELASTOMERIC SEAL J
16、OINTS.34 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 15792001 Standards A.au 4 STANDARDS AUSTRALIA Australian Standard Arc-welded steel pipes and fittings for water and wastewater S E C T I O N 1 S C O P E A N D G E N E R A L 1.1 SCOPE This Standard specifies requirements for arc-wel
17、ded steel pipes and fittings with butt-welded seams, having diameters equal to or greater than 114 mm outside diameter intended for the conveyance of water and wastewater at rated pressures up to 6.8 MPa, and for use as piles. Methods of demonstrating compliance with this Standard are given in Appen
18、dix A. NOTE: Purchasing guidelines are given in Appendix B. 1.2 REFERENCED DOCUMENTS The following documents are referred to in this Standard. AS 1199Sampling procedures and tables for inspection by attributes 1281Cement mortar lining of steel pipes and fittings 1349Bourdon tube pressure and vacuum
19、gauges 1399Guide to AS 1199Sampling procedures and tables for inspection by attributes 1646Elastomeric seals for waterworks purposes 1646.1Part 1:General requirements 1646.2Part 2:Material requirements for pipe joint seals used in water and wastewater 1646.3Part 3:Material requirements for pipe join
20、t seals used in water and wastewater applications with the exception of natural rubber and polyisoprene compounds 1978PipelinesGas and liquid petroleumField pressure testing 2812Welding, brazing and cutting of metalsGlossary of terms 4087Metallic flanges for waterworks purposes 4321Fusion-bonded med
21、ium-density polyethylene coating and lining for pipes and fittings AS/NZS 3500National Plumbing and Drainage Code 3500.0Part 0:Glossary of terms 1554Structural steel welding 1554.1Part 1:Welding of steel structures 1594Hot-rolled steel flat products 3678Structural SteelHot-rolled plates, floorplates
22、 and slabs 4020Products for use in contact with drinking water SAI HB18Guidelines for third-party certification and accreditation HB18.28Guide 28: General rules for a model third-party certification system for products Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 15792001 .au Standard
23、s Australia 5 ISO 559Steel tubes for water and sewerage 2859Sampling procedures for inspection by attributes 2859.1Part 1:Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection 3951Sampling procedures and charts for inspection by variables for percent nonconforming API
24、5LSpecification for Line Pipe (see Note) NOTE: Available from American Petroleum Institute, 1801 K St. N. W., Washington, DC 20037 1.3 DEFINITIONS For the purpose of this Standard, the definitions given in AS 1978, AS 2812, AS 3500.0 and those below apply. Where this Clause includes definitions of t
25、erms defined elsewhere, the definition provided herein apply. 1.3.1 Deflection angle The acute angle formed between the axes of two adjacent pipes when a joint is completed between them. 1.3.2 Effective length The overall length of the pipe minus the nominal joint entry, expressed in metres. 1.3.3 H
26、ydrostatic test pressure The pressure applied internally to the pipe or fitting during the hydrostatic test. 1.3.4 Layback The angular distortion of a flange from its original plane due to welding the flange onto a pipe or fitting. 1.3.5 Nominal minimum yield strength (NMYS) The anticipated minimum
27、yield strength based on statistical records. NOTE: This may be applied to analysis grades and by agreement with the purchaser to structural (mechanically tested) grades. 1.3.6 Non-destructive testing (NDT) Testing of welds in accordance with AS/NZS 1554.1 Category SP. 1.3.7 Outside diameter (OD) The
28、 specified outside diameter of the uncoated pipe or fitting expressed in millimetres. NOTE: This is the preferred method of specifying pipe diameter. 1.3.8 Nominal size (DN) A numerical designation of size, which is common to all components in a piping system other than components designated by outs
29、ide diameters. NOTE: Nominal size is loosely related to manufacturing dimensions, and is designated by DN followed by a number. 1.3.9 Ovality The difference between maximum and minimum diameters after due allowance for sag. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 15792001 Standar
30、ds A.au 6 1.3.10 Pile A circular structural member that is driven into soil and is not used for internal pressure containment. 1.3.11 Specified minimum yield strength (SMYS) The specified minimum yield strength when ordering a structural (mechanically tested) grade of steel. 1.3.12 Rated pressure (P
31、r) The maximum internal hydrostatic pressure, at which the pipe is suitable for sustained operation. 1.3.13 Wall thickness (t) The nominal thickness of the wall of a pipe or fitting, not including any lining or coating and not taking into account the effect of manufacturing tolerances. 1.3.14 Workin
32、g pressure The maximum operating internal hydrostatic pressure for the pipeline determined by the designer after considering the rated pressure of the pipe and fittings and taking into account the various factors such as external loads and transient hydrostatic conditions. 1.4 MARKING Pipes and fitt
33、ings shall be legibly and permanently marked on the external surface, no closer than 150 mm from an end, with the following information: (a)A unique serial number that is maintained throughout the manufacturing operations. (b)The place of manufacture. NOTE: This is not required where the place of ma
34、nufacture is readily traceable from the unique serial number. (c)Outside diameter (pipes only). (d)Wall thickness (pipes only). (e)The number of this Australian Standard, i.e. AS 1579. (f)The manufacturers name or registered trademark. (g)For hydrostatically tested pipes only, the rated pressure, in
35、 megapascals. (h)For non-hydrostatically tested pipes only, the words Not hydrostatically tested. Additionally where required for non-hydrostatically tested pipes, 100% NDT AS 1554.1 SP. (i)For pipes or fittings complying with AS/NZS 4020 AS/NZS 4020. 1.5 INFORMATION TO BE SUPPLIED BY THE PURCHASER
36、NOTE: Guidelines for information to be supplied by the purchaser at the time of inquiry are given in Appendix B. 1.6 COATING AND LINING Pipes and fittings intended for the conveyance of water and sewage shall be protected from corrosion by a coating and lining, suitable for their intended purpose. C
37、oatings shall be applied in accordance with AS 1281 and AS 4321. Other coatings and linings may be applied as specified by the purchaser. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 15792001 .au Standards Australia 7 1.7 HANDLING, LIFTING AND STORAGE Pipes, piles and fittings shall b
38、e lifted and handled in a manner that is safe and avoids permanent distortion of the pipe, pile or fitting and damage to the coating and/or lining. Pipes, piles and fittings shall be supported, both in storage and during transport, in a manner that is safe and avoids permanent distortion of the pipe
39、, pile or fitting and damage to either the coating and/or lining. 1.8 EFFECT ON WATER Pipes and fittings supplied to this Standard, which are for use in contact with water intended for human consumption, shall comply with AS/NZS 4020. Such compliance shall apply to the pipe and fittings in the finis
40、hed condition taking into account all coatings and/or linings that come into contact with the water in the pipeline. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 15792001 Standards A.au 8 S E C T I O N 2 R A T E D P R E S S U R E 2.1 HYDROSTATICALLY TESTED PIPE The maximum internal hy
41、drostatic pressure at which hydrostatically tested pipe is suitable for sustained operation is calculated from the following equations: () OD tSMYS Pr = 2 72 . 0 or; . . . 2.1(1) () OD tNMYS Pr = 2 72 . 0 . . . 2.1(2) The maximum rated pressure for pipes and fittings produced in accordance with this
42、 Standard is 6.8 MPa. This maximum is dictated by a pressure test equipment limit of 8.5 MPa. In emergency situations transient pressures may lead to an increase in pipe stress. Under these conditions the maximum allowable combined stresses shall be determined by the designer, but shall not exceed 0
43、.90 SMYS. 2.2 NON-HYDROSTATICALLY TESTED PIPE For pipe that is not hydrostatically tested in accordance with this Standard, the designer shall determine the design pressure rating of the pipe. The wall thickness of all pipes that are non-hydrostatically tested shall be no less than 8.0 mm. All welds
44、 shall be 100 % non-destructively tested in accordance with AS 1554.1, Category SP. The maximum hoop stress at the rated pressure shall not exceed 0.50 of the specified minimum yield stress of the steel. 2.3 FITTINGS The rated pressure of fittings produced in accordance with this Standard shall be t
45、he responsibility of the designer. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 15 Aug 2008 AS 15792001 .au Standards Australia 9 S E C T I O N 3 M A N U F A C T U R E 3.1 PIPE AND PILES 3.1.1 Steel Hydrostatically tested pipes shall be manufactured from an analysis or structural grade of hot rolled
46、 steel complying with AS/NZS 1594 or AS/NZS 3678. Piles and non- hydrostatically tested pipe shall be manufactured from a structural grade of steel complying with AS/NZS 1594 or AS/NZS 3678. Alternatively, piles may be manufactured from an analysis grade complying with AS/NZS 1594, in which case the
47、 steel shall be mechanically tested in accordance with AS 1391 to demonstrate that it meets the tensile requirements specified by the purchaser. The steel shall have a carbon equivalent (CE) not exceeding 0.40 when calculated using the following formula: + + + += 15 %CuNi% 5 V%Mo%Cr% 6 Mn% CE . . .
48、3.1 3.1.2 Welding All welds shall be complete penetration butt welds carried out in accordance with AS 1554.1 Category SP. Pipes for water and wastewater shall be produced using at least one internal pass and one external pass. Welds may be made by any combination of longitudinal, circumferential or
49、 spiral welding. The height of weld reinforcement shall not exceed 3 mm, and the maximum misalignment between plates of the same nominal thickness in butt welds shall be as follows: (a)1.5 mm where t 12 mm. (b)3.0 mm where t 12 mm. Repair welds shall be carried out in accordance with AS 1554.1 Category SP. 3.1.3 Pipe and pil