1、Reference number ISO 9330-4:2000(E) ISO 2000 INTERNATIONAL STANDARD ISO 9330-4 First edition 2000-07-01 Welded steel tubes for pressure purposes Technical delivery conditions Part 4: Submerged arc-welded unalloyed and alloyed steel tubes with specified elevated temperature properties Tubes en acier
2、souds pour service sous pression Conditions techniques de livraison Partie 4: Tubes souds larc immerg en aciers non allis et allis avec caractristiques spcifies temprature leveISO 9330-4:2000(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy,
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5、sure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or util
6、ized in any form or by any means, 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
7、+ 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2000 All rights reservedISO 9330-4:2000(E) ISO 2000 All rights reserved iii Contents Page Foreword.iv 1 Scope 1 2 Normative references 1 3 Symbols 2 4 Information to be supplied by the purchaser .3 5 Manufacturing
8、process .4 6 Metallurgical properties 6 7 Dimensions, masses and tolerances.10 8 Technical delivery conditions 12 9 Inspection and testing.13 10 Samples 15 11 Test methods and results .17 12 Marking .22 13 Protection .22 14 Documents .22 Annex A (informative) Long term rupture values23ISO 9330-4:200
9、0(E) iv ISO 2000 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body
10、interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotech
11、nical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publi
12、cation as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 9330 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such
13、patent rights. International Standard ISO 9330-4 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 19, Technical delivery conditions for steel tubes for pressure purposes. ISO 9330 consists of the following parts, under the general title Welded steel tubes for pressure purposes T
14、echnical delivery conditions: Part 1: Unalloyed steel tubes with specified room temperature properties Part 2: Electric resistance and induction welded unalloyed and alloyed steel tubes with specified elevated temperature properties Part 3: Electric resistance and induction welded unalloyed and allo
15、yed steel tubes with specified low temperature properties Part 4: Submerged arc-welded unalloyed and alloyed steel tubes with specified elevated temperature properties Part 5: Submerged arc-welded unalloyed and alloyed steel tubes with specified low temperature properties Part 6: Longitudinally weld
16、ed austenitic stainless steel tubes Annex A of this part of ISO 9330 is for information only.INTERNATIONAL STANDARD ISO 9330-4:2000(E) ISO 2000 All rights reserved 1 Welded steel tubes for pressure purposes Technical delivery conditions Part 4: Submerged arc-welded unalloyed and alloyed steel tubes
17、with specified elevated temperature properties 1 Scope This part of ISO 9330 specifies the technical delivery conditions for submerged arc-welded tubes of circular cross- section, made of unalloyed or alloyed steel with specified elevated temperature properties. These tubes are intended for pressure
18、 purposes in cases when the material is also subjected to elevated temperatures, e.g. for the construction of steam generating equipment and for interconnecting pipework. The requirements of appropriate international application standards and relevant national legal regulations shall be taken into a
19、ccount by the user. For boilers and pressure vessels International Standards ISO 831, ISO 2604 and ISO 5730 are available. For the general technical delivery requirements, see ISO 404. NOTE The English words “tube” and “pipe” are synonymous. 2 Normative references The following normative documents c
20、ontain provisions which, through reference in this text, constitute provisions of this part of ISO 9330. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 9330 are encouraged to investigat
21、e the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 148:1983 1) , Steel C
22、harpy impact test (V-notch). ISO 377:1997, Steel and steel products Location and preparation of samples and test pieces for mechanical testing. IS0 404:1992, Steel and steel products General technical delivery requirements. ISO 783:1999, Metallic materials Tensile testing at elevated temperature. IS
23、O 2566-1:1984, Steel Conversion of elongation values Part 1: Carbon and low alloy steels. ISO 3205:1976, Preferred test temperatures. 1) This International Standard has been withdrawn and replaced by ISO 148-1:, ISO 148-2:1998 and ISO 148-3:1998.ISO 9330-4:2000(E) 2 ISO 2000 All rights reserved ISO
24、3545-1:1989, Steel tubes and fittings Symbols for use in specifications Part 1: Tubes and tubular accessories with circular cross-section. ISO 4200:1991, Plain end steel tubes, welded and seamless General tables of dimensions and masses per unit length. ISO 4948-1:1982, Steels Classification Part 1:
25、 Classification of steels into unalloyed and alloy steels based on chemical composition. ISO/TR 4949:1989, Steel names based on letter symbols. ISO 5173:1981, Fusion welded butt joints in steel Transverse root and face bend test. ISO 5177:1981, Fusion welded butt joints in steel Transverse side bend
26、 test. ISO 5252:1991, Steel tubes Tolerance systems. ISO 6761:1981, Steel tubes Preparation of ends of tubes and fittings for welding. ISO 6892:1998, Metallic materials Tensile testing at ambient temperature. ISO 7438:1985, Metallic materials Bend test. ISO 9765:1990, Submerged arc-welded steel tube
27、s for pressure purposes Ultrasonic testing of the weld seam for the detection of longitudinal and/or transverse imperfections. ISO 10474:1991, Steel and steel products Inspection documents. ISO 11496:1993, Seamless and welded steel tubes for pressure purposes Ultrasonic testing of tube ends for the
28、detection of laminar imperfections. ISO 12094:1994, Welded steel tubes for pressure purposes Ultrasonic testing for the detection of laminar imperfections in strip/plates used in the manufacture of welded tubes. IS0 12096:1996, Submerged arc-welded steel tubes for pressure purposes Radiographic test
29、ing of the weld seam for the detection of imperfections. ISO 14284:1996, Steel and iron Sampling and preparation of samples for the determination of chemical composition. 3 Symbols 3.1 Fundamental symbols D is the specified outside diameter. T is the specified wall thickness. 3.2 Symbols for toleran
30、ces See ISO 5252.ISO 9330-4:2000(E) ISO 2000 All rights reserved 3 3.3 Symbols for tests 3.3.1 Tensile test See ISO 6892. 3.3.2 Hydraulic test p E is the test pressure. is the stress which occurs in the metal during the test. 4 Information to be supplied by the purchaser 4.1 Mandatory information Th
31、e purchaser shall state on his enquiry and order the following information: a) the denomination “tube”; b) reference to the relevant dimensional standard; c) dimensions (outside diameter wall thickness), see 7.1; d) length, see 7.2; e) tolerances if exact lengths greater than 12 m are ordered, see 7
32、.3.4; f) reference to this part of ISO 9330, i.e. ISO 9330-4; g) steel grade, see Table 3; h) test category for unalloyed steels, see 9.3.1. 4.2 Optional information Enquiries and orders for tubes in accordance with this part of ISO 9330 shall be supplemented, if it is deemed necessary by the purcha
33、ser, with the indication of one or more of the following optional requirements, which shall be the subject of special agreements: a) dimensions (inside diameter wall thickness) see 7.1; b) steelmaking process, see 5.1; c) delivery condition, see 5.4; d) special straightness requirements, see 7.3.6;
34、e) tolerances on the height of the weld seam, see 7.3.2; f) bevelled ends, see 8.2; g) product analysis, see 10.1.3; h) tensile testing of weld for tubes over 219 mm but less than 508 mm outside diameter, see 10.1.3; i) determination of proof stress at elevated temperature R p0,2 , see 10.1.3;ISO 93
35、30-4:2000(E) 4 ISO 2000 All rights reserved j) impact test, see 10.1.3; k) specific marking, see 12.3; l) protective coating, see 13; m) type of inspection and testing and corresponding document, see 9.2 and 14. 4.3 Example of an order Example of an order conforming to the dimensional standard ISO 4
36、200, with an outside diameter of 457 mm, a wall thickness of 10 mm and a standard length (random length) of 4 m to 8 m, made of steel grade PH 23 with specified elevated temperature properties to be submitted to specific inspection and testing to test category I involving the issuing of an inspectio
37、n document 3.1 B in accordance with ISO 10474:1991. Tube ISO 4200 - 457 1 0-4to8-IS O933 0 -4-P H23-l-3. 1 . B 5 Manufacturing process 5.1 Steelmaking process If requested, the purchaser shall be informed of the steelmaking process used. Steels may be cast in ingots or may be strand cast. When steel
38、s of different grades are sequentially strand cast identification of the resultant transition material is required. The producer shall remove the transition material by an established procedure that positively separates the grades. 5.2 Deoxidation process Steels intended for the production of tubes
39、covered by this part of ISO 9330 shall be fully-killed. 5.3 Product-making process for tubes A welded tube is obtained by shaping a flat-rolled product and then welding the edges. The weld may be longitudinal or helical. Tubes shall be submerged arc-welded (SAW) using at least one run on the inside
40、and one run on the outside of the tube. Unless otherwise agreed, the process of manufacture is left to the discretion of the manufacturer, provided that the welding method and welder/welding operator have been approved in accordance with a qualified procedure. Tubes covered by this part of ISO 9330
41、may be hot finished or cold finished. The terms “hot finished” and “cold finished” apply to the condition of the tube before it is heat treated, if applicable. 5.4 Delivery condition 5.4.1 Tubes covered by this part of ISO 9330 shall be delivered in accordance with Table 1 and when appropriate the h
42、eat treatment conditions indicated in Table 2. 5.4.2 By agreement between the purchaser and the manufacturer the tubes may be delivered in a condition other than the final delivery condition in which case they shall be suitable for subsequent manipulation and the purchaser shall be informed of any t
43、reatment necessary to obtain the specified properties.ISO 9330-4:2000(E) ISO 2000 All rights reserved 5 Table 1 Delivery conditions Delivery condition Grade Cold formed Hot formed As-welded, not heat-treated PH 23, PH 26, PH 29, PH 35 Welded, heat treatment on full tube Welded, normalized on full tu
44、be 16 Mo 3, 13 CrMo 4-5, 11 CrMo 9-10 Welded, heat treatment on full tube Table 2 Heat treatment conditions Steel grade Reference heat treatment a Austenitizing temperature C Cooling medium Tempering temperature C Cooling medium Unalloyed steels PH 23 PH 26 PH 29 PH 35 N b N b N b N b 880-940 880-94
45、0 880-940 880-940 Air Air Air Air Alloyed steels 16 Mo 3 13 CrMo 4-5 11 CrMo 9-10 N N T N T 890-950 900-960 900-960 Air Air Air 660-730 680-750 Air Air a N = normalizing; N T = normalizing tempering. b The hot finished tubes may be delivered in the non treated condition at the discretion of the manu
46、facturer provided that the hot finishing produces a technically equivalent metallurgical condition. The methods of control to ensure equivalence of structure shall be the subject of a previous agreement between the purchaser and manufacturer.ISO 9330-4:2000(E) 6 ISO 2000 All rights reserved 6 Metall
47、urgical properties 6.1 Chemical composition 6.1.1 Heat analysis The heat analysis reported by the steel producer shall apply and comply with the requirements given in Table 3. Table 3 Chemical composition (heat analysis), % (m/m) Steel grade a CS iM n P max. S max. Cr Mo Al (total) max. Others Unall
48、oyed steels PH 23 PH 26 PH 29 PH 35 u 0,17 u 0,21 u 0,22 u 0,22 c 0,10-0,30 0,10-0,35 0,10-0,40 0,15-0,55 0,30-0,80 0,40-1,20 0,65-1,40 1,00-1,50 c 0,035 0,035 0,035 0,035 0,03 0,03 0,03 0,03 b b b b, d Alloyed steels 16 Mo 3 13 CrMo 4-5 11 CrMo 9-10 0,12-0,20 e 0,10-0,17 e 0,08-0,15 0,15-0,35 0,15-
49、0,35 0,15-0,40 0,40-0,80 0,40-0,70 0,30-0,70 0,035 0,035 0,035 0,03 0,03 0,03 0,7-1,1 2,0-2,5 0,25-0,35 0,40-0,60 0,90-1,20 0,02 0,02 0,02 b b b NOTE Elements not included in this table should not be intentionally added without the agreement of the purchaser except for elements which may be added for deoxidation and finishing of the heat. All reasonable precautions should be taken to preven
