1、Reference number ISO 9330-5:2000(E) ISO 2000 INTERNATIONAL STANDARD ISO 9330-5 First edition 2000-06-15 Welded steel tubes for pressure purposes Technical delivery conditions Part 5: Submerged arc-welded unalloyed and alloyed steel tubes with specified low temperature properties Tubes en acier souds
2、 pour service sous pression Conditions techniques de livraison Partie 5: Tubes souds larc immerg en aciers non allis et allis avec caractristiques spcifies basse tempratureISO 9330-5:2000(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this
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5、 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 utilized
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7、 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2000 All rights reservedISO 9330-5:2000(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 proc
8、ess .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 .22ISO 9330-5:2000(E) iv ISO 2000 All rights reserved Foreword ISO (th
9、e 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 interested in a subject for which a technical committ
10、ee 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 Electrotechnical Commission (IEC) on all matters of electrotechn
11、ical 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. Publication as an International Standard requires approval
12、 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 patent rights. International Standard ISO 9330-5 was
13、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 Technical delivery conditions: Part 1: Unalloyed steel
14、 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 alloyed steel tubes with specified low temperature proper
15、ties 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 welded austenitic stainless steel tubesINTERNATIONAL STAN
16、DARD ISO 9330-5:2000(E) ISO 2000 All rights reserved 1 Welded steel tubes for pressure purposes Technical delivery conditions Part 5: Submerged arc-welded unalloyed and alloyed steel tubes with specified low temperature properties 1 Scope This part of ISO 9330 specifies the technical delivery condit
17、ions for submerged arc-welded tubes of circular cross- section, made of unalloyed or alloyed steel with specified low temperature properties. These tubes are intended for pressure purposes in cases when the material is also used as part of a low temperature piping system. The requirements of appropr
18、iate international application standards and relevant national legal regulations shall be taken into account by the user. For pressure-containing equipment International Standard ISO 5730 is available. For the general technical delivery requirements, see ISO 404. NOTE The English words “tube” and “p
19、ipe” are synonymous. 2 Normative references The following normative documents contain 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, pa
20、rties to agreements based on this part of ISO 9330 are encouraged to investigate 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
21、registers of currently valid International Standards. ISO 148:1983 1) , Steel Charpy 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 requirement
22、s. ISO 643:1983, Steels Micrographic determination of the ferritic or austenitic grain size. ISO 2566-1:1984, Steel Conversion of elongation values Part 1: Carbon and low alloy steels. ISO 3205:1976, Preferred test temperatures. ISO 3545-1:1989, Steel tubes and fittings Symbols for use in specificat
23、ions Part 1: Tubes and tubular accessories with circular cross-section. 1) This International Standard has been withdrawn and replaced by ISO 148-1:, ISO 148-2:1998 and ISO 148-3:1998.ISO 9330-5:2000(E) 2 ISO 2000 All rights reserved ISO 4200:1991, Plain end steel tubes, welded and seamless General
24、tables of dimensions and masses per unit length. ISO 4948-1:1982, Steels Classification Part 1: 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
25、root and face bend test. ISO 5177:1981, Fusion welded butt joints in steel Transverse side bend 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 temperatu
26、re. ISO 7438:1985, Metallic materials Bend test. ISO 9765:1990, Submerged arc-welded steel tubes 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,
27、 Seamless and welded steel tubes for pressure purposes Ultrasonic testing of tube ends for the 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
28、tubes. IS0 12096:1996, Submerged arc-welded steel tubes for pressure purposes Radiographic testing 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
29、D is the specified outside diameter. T is the specified wall thickness. 3.2 Symbols for tolerances See ISO 5252. 3.3 Symbols for tests 3.3.1 Tensile test See ISO 6892.ISO 9330-5:2000(E) ISO 2000 All rights reserved 3 3.3.2 Hydraulic test p E is the test pressure. is the stress which occurs in the me
30、tal during the test. 4 Information to be supplied by the purchaser 4.1 Mandatory information The 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), s
31、ee 7.1; d) length, see 7.2; e) tolerances if exact lengths greater than 12 m are ordered, see 7.3.4; f) reference to this part of ISO 9330, i.e. ISO 9330-5; g) steel grade, see Table 1; h) test category for unalloyed steels, see 9.3.1. 4.2 Optional information Enquiries and orders for tubes in accor
32、dance with this part of ISO 9330 shall be supplemented, if it is deemed necessary by the purchaser, 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 proc
33、ess, see 5.1; c) delivery condition, see 5.4; d) special straightness requirements, see 7.3.6; 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,
34、see 10.1.3; i) impact test on the weld and/or heat affected zone, see 10.1.3; j) specific marking, see 12.3; k) protective coating, see 13; l) type of inspection and testing and corresponding document, see 9.2 and 14.ISO 9330-5:2000(E) 4 ISO 2000 All rights reserved 4.3 Example of an order Example o
35、f an order conforming to the dimensional standard ISO 4200, 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 PL 21 with specified elevated temperature properties to be submitted to specific inspection and testing t
36、o test category I involving the issuing of an inspection document 3.1.B in accordance with ISO 10474:1991. Tube ISO 4200 - 457 1 0-4to8-IS O933 0 -4-P L21-l-3 .1 . B 5 Manufacturing process 5.1 Steelmaking process If requested, the purchaser shall be informed of the steelmaking process used. Steels
37、may be cast in ingots or may be strand cast. When steels 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 Deoxidati
38、on process Steels intended for the production of tubes 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
39、 arc-welded (SAW) using at least one run on the inside 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 quali
40、fied procedure. Tubes covered by this part of ISO 9330 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.ISO 9330-5:2000(E) ISO 2000 All rights reserved 5 5.4 Delivery condition Tubes covered
41、 by this part of ISO 9330 shall be supplied heat-treated over their full length. The following heat treatments shall be used depending on the type of steel, see Table 1. normalizing; normalizing and tempering; quenching and tempering. Table 1 Heat treatment conditions Quenching and tempering tempera
42、ture C Steel grade (see Table 2) Reference heat treatment a Normalizing temperature C Tempering temperature C Hardening temperature C Cooling medium b Tempering temperature C PL 21 N 900-940 PL 23 N 890-930 PL 25 Q+T 890-930 water or oil 600-680 Unalloyed steels PL 26 N 890-930 11 MnNi 5-3 N c 890-9
43、40 580-640 13 MnNi 6-3 N c 890-940 580-640 12 Ni 14 Q+T d 830-880 580-640 820-880 water or oil 580-660 X12Ni 5 Q+T d 800-850 580-640 800-850 water or oil 580-660 Alloyed steels X10 Ni 9 Q+T 880-930 770-820 water or oil 540-600 a N = normalizing; Q T = quenching tempering. b When choosing the cooling
44、 medium the influence of other parameters, such as dimensions and quenching temperature, on properties and crack susceptibility shall be taken into account. Other cooling media such as synthetic quenchants may also be used. c Tempering can occasionally be necessary after normalizing. In such a case
45、the manufacturer shall inform the purchaser accordingly and shall state the tempering temperature as well. d If the products dimensions so permit, normalizing (with subsequent tempering if necessary) may be carried out at the manufacturers discretion instead of quenching and tempering. In such a cas
46、e the manufacturer shall inform the purchaser accordingly.ISO 9330-5:2000(E) 6 ISO 2000 All rights reserved 6 Metallurgical 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 2. Table 2
47、Chemical composition (heat analysis), % (m/m) CS IM nPSA lM oN iVN b Steel grade a max. max. max. max. (total) min. max. max. max. PL 21 0,17 0,35 0,40-1,00 0,030 0,025 0,015 b PL 23 0,19 0,35 0,60-1,20 0,030 0,025 0,015 b PL 25 0,17 0,35 0,40-1,00 0,030 0,025 0,015 b Unalloyed steel PL 26 0,20 0,35
48、 0,80-1,40 0,030 0,025 0,015 b 11 MnNi5-3 0,14 0,50 0,70-1,50 0,030 0,025 0,020 c 0,3 d -0,8 0,05 0,05 13 MnNi6-3 0,18 0,50 0,85-1,65 0,030 0,025 0,020 c 0,3 d -0,8 0,05 0,05 12 Ni 14 0,15 0,35 0,3-0,8 0,025 0,020 0,020 3,25-3,75 0,05 X 12 Ni 5 0,15 0,35 0,3-0,8 0,025 0,020 0,020 4,5-5,3 0,05 Alloye
49、d steel X 10 Ni 9 0,13 0,35 0,3-0,8 0,025 0,020 0,020 010 8,5-9,5 0,05 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 prevent the addition of elements from scrap or other materials u
