1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 16172:2011Continuous hot-dip metallic-coated steel sheet forcorrugated steel pipeBS ISO 16172:2011 BRITISH STANDARDNational forewordThis British Standard is the UK impleme
2、ntation of ISO 16172:2011. Itsupersedes BS ISO 16172:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/109, Coated and Uncoated Flat Products to be Usedfor Cold Forming.A list of organizations represented on this committee can beobtained on reque
3、st to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2011ISBN 978 0 580 72836 5ICS 77.140.50Compliance with a British Standard cannot confer immunity fromlegal o
4、bligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2011.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 16172:2011Continuous hot-dip metallic-coated steel sheet for corrugated steel pipeTles en acier r
5、evtues en continu par immersion chaud pour tuyaux dacier stri ISO 2011Reference numberISO 16172:2011(E)Second edition2011-11-01ISO16172INTERNATIONAL STANDARDBS ISO 16172:2011ISO 16172:2011(E)COPYRIGHT PROTECTED DOCUMENT ISO 2011All rights reserved. Unless otherwise specified, no part of this publica
6、tion may be reproduced or utilized 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 officeCase postale 56 CH-1211 Geneva 20
7、Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in Switzerlandii ISO 2011 All rights reservedBS ISO 16172:2011ISO 16172:2011(E) ISO 2011 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative references .13 Terms, definitions and abbreviations
8、13.1 Terms and definitions .13.2 Abbreviations .24 Requirements .24.1 Chemical composition .24.2 Mechanical properties 25 Coating requirements .35.1 Coating mass 35.2 Coating adhesion 35.3 Surface treatment 36 Dimension and tolerances 36.1 Thickness 36.2 Length .46.3 Flat sheet .46.4 Other dimension
9、s 47 Sampling 47.1 Chemical composition .47.2 Mechanical properties 47.3 Coating tests .58 Test methods 58.1 Tensile tests 58.2 Coating mass 59 Resubmission .510 Workmanship 511 Inspection and acceptance .612 Certification .613 Marking .614 Information to be supplied by the purchaser 6Bibliography .
10、9BS ISO 16172:2011ForewordISO (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 interested in a subj
11、ect 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 Electrotechnical Commission (IE
12、C) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committee
13、s are circulated to the member bodies for voting. Publication 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 document may be the subject of patent rights. ISO shall not be hel
14、d responsible for identifying any or all such patent rights.ISO 16172 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill flat rolled products.This second edition cancels and replaces the first edition (ISO 16172:2006), which has been technically revised.ISO 161
15、72:2011(E)iv ISO 2011 All rights reservedBS ISO 16172:2011INTERNATIONAL STANDARD ISO 16172:2011(E)Continuous hot-dip metallic-coated steel sheet for corrugated steel pipe1 ScopeThis International Standard specifies the requirements for steel sheet used in the manufacture of corrugated steel pipe for
16、 storm sewers, culverts, drains, and similar uses. It covers sheet which is metallic coated by the continuous hot-dip process and is furnished in coils, flat cut lengths, and corrugated cut lengths.Several metallic-coated materials are covered which relies on users to determine which product best se
17、rves their needs. Four different metallic coatings are included: zinc coated; zinc-5 % aluminium-mischmetal alloy coated; 55 % aluminum-zinc alloy coated; Al-Si alloy coated.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated ref
18、erences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1460, Metallic coatings Hot dip galvanized coatings on ferrous materials Gravimetric determination of the mass per unit areaISO 2178, Non-magnetic coa
19、tings on magnetic substrates Measurement of coating thickness Magnetic methodISO 3497, Metallic coatings Measurement of coating thickness X-ray spectrometric methodsISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperatureISO 16163, Continuously hot-dipped coated stee
20、l sheet products Dimensional and shape tolerances3 Terms, definitions and abbreviationsFor the purposes of this document, the following terms, definitions and abbreviations apply.3.1 Terms and definitions3.1.1fabricatorfor corrugated metal pipe the organization that produces the finished pipe3.1.2fa
21、bricatorfor structural plate pipe the organization that processes flat sheets and other items necessary for the field assembly of finished products ISO 2011 All rights reserved 1BS ISO 16172:20113.1.3manufacturerfor corrugated metal pipe the organization that produces the metal sheet from which pipe
22、 is made3.1.4purchaserfor corrugated metal pipe the person or agency that purchases the finished pipeNOTE With regard to this International Standard for sheet for corrugated steel pipe, the fabricator may also be considered as the purchaser of the sheet, where that term is used in this International
23、 Standard. Such an interpretation will not restrict the purchaser of finished pipe from enforcing any provisions of this specification.3.1.5normal spangle coatingcoating formed as a result of the unrestricted growth of zinc or zinc alloy crystals during normal solidification of the coating3.1.6minim
24、ized spangle coatinga finer metallurgical coating formed as a result of treatment to restrict the formation of the normal coarse-grain coating structure of the Zn-5Al-MM coating type3.2 AbbreviationsZn: zincZn-5Al-MM: zinc-5 % aluminum-mischmetal alloy55Al-Zn: 55 % aluminum-zinc alloyAl-Si: aluminum
25、-silicon alloy4 Requirements4.1 Chemical compositionThe chemical composition (heat analysis) of the base metal shall conform to the requirements of Table 1.4.2 Mechanical propertiesThe metallic-coated sheet shall conform to the requirements listed in Table 2.Table 1 Chemical compositionElement Heat
26、analysis Product analysisSulfur, max., % 0,05 0,06Sum of carbon, manganese, phosphorus, sulfur and silicon, max., %0,70 0,74ISO 16172:2011(E)2 ISO 2011 All rights reservedBS ISO 16172:2011Table 2 Mechanical property requirements (properties of flat sheet prior to fabrication)aTensile strengthb, min.
27、, MPa 310Yield strengthb, min. MPa 230Elongation, in 50 mmc, min., % 20aTo determine conformance with this specification, round each value for tensile strength and yield strength to the nearest 1 MPa and each value for elongation to the nearest 1 %.bYield strength and tensile strength are based on t
28、he thickness of the base metal. If tests are made after coating, determine the base metal thickness after stripping the coating from the ends of the specimen contacting the grips of the tension-testing machine prior to tensile testing.cThe elongation requirement does not apply to material tested aft
29、er corrugating.5 Coating requirements5.1 Coating massThe coating mass shall comply with the requirements listed in Table 3. The coating mass is the total amount of coating on both sides of the sheet, expressed in grams per square metre.5.2 Coating adhesionThe adhesion of the coating shall be such th
30、at no peeling or flaking occurs while the coated sheet is being corrugated and formed into pipe.5.3 Surface treatmentA surface treatment may be applied to the metallic-coated sheet to minimize the hazard of wet-storage stain during shipment and storage. However, the inhibiting characteristics of the
31、 treatment are limited and, if a shipment is received wet, the material shall be used immediately or dried.Table 3 Coating mass (total both sides)TypeCoating mass Equivalent coating thicknessaTriple spot, average, min.g/m2Single spot, min.g/m2Triple spot, average, min.mSingle spot, min.mZn 610 550 8
32、6 78Zn-5AI-MM 640 550 93 8055AI-Zn 210 180 56 48AI-Si 305 275 95 86aCoating thicknesses are approximate, for information only. Conversions are based on the following relationships: Zn coating: 1 g/m2= 0,141 5 m; Zn-5Al-MM: 1 g/m2= 0,146 0 m; 55Al-Zn coating: 1 g/m2= 0,266 36 m; Al-Si coating: 1 g/m2
33、= 0,331 28 m.6 Dimension and tolerances6.1 ThicknessSheet thickness shall conform to the dimensions specified in Table 4. The thickness of the sheet includes both the base metal and the coating.ISO 16172:2011(E) ISO 2011 All rights reserved 3BS ISO 16172:20116.2 LengthPermissible variations in the l
34、ength of cut-length sheets, both flat and corrugated, shall be in accordance with ISO 16163.6.3 Flat sheetPermissible variations in the width and camber of flat sheet material shall be in accordance with ISO 16163. The flatness tolerances are given in Table 5.6.4 Other dimensions6.4.1 Corrugated con
35、figurationsCorrugations shall form smooth continuous curves and tangents. The dimensions of the corrugated sheet shall be in accordance with Table 6.6.4.2 Corrugated sheet widthThe covering width of corrugated sheet shall be in accordance with Table 7. The covering width is the distance between the
36、crests of the extreme corrugations. The lip dimension of corrugated sheet shall be in accordance with Table 8 and is measured along the radial curvature from the crest of the corrugation to the edge of the sheet. There is no established tolerance for overall width, since the covering width and lip d
37、imensions are the governing factors for the formed product.Table 4 Coated-steel-sheet thickness requirementsSpecified thicknessmmMinimum thicknessmm1,01,31,62,02,83,54,3a0,91,21,51,82,63,34,0NOTE Thickness is measured not less than 10 mm from an edge. On corrugated sheet, thickness is measured on th
38、e tangents of corrugations.aAluminum-silicon-alloy-coated sheet is not available in these thicknesses.7 Sampling7.1 Chemical compositionAn analysis of each heat shall be made by the manufacturer to determine compliance with the requirements of Table 1.7.2 Mechanical propertiesOne representative samp
39、le from each lot shall be used for the tensile test to determine conformance with the requirements of Table 2. Mechanical property tests shall be conducted on the sheet prior to corrugating or other fabrication, whenever possible. If the tests are made after corrugating, the specimens shall be taken
40、 on ISO 16172:2011(E)4 ISO 2011 All rights reservedBS ISO 16172:2011the tangents of corrugations and used for the determination of tensile and yield strength only. A lot consists of 50 t or less of sheet of the same quality rolled to the same thickness and coating condition.7.3 Coating tests7.3.1 Co
41、ating massTest specimens shall be taken from each lot from a sample piece approximately 300 mm in length on the as- coated width. Three specimens are cut from the sample, one from the mid-width position and one from each side, not closer than 25 mm from the side edge. The minimum specimen area shall
42、 be 1 200 mm2.7.3.2 Triple-spot testThe triple-spot test result shall be the average coating mass found on the three specimens taken according to 7.3.1.7.3.3 Single-spot testThe single-spot test result shall be the minimum coating mass found on any one of the three specimens used for the triple-spot
43、 test.8 Test methods8.1 Tensile testsThe tests shall be conducted in accordance with the methods specified in ISO 6892-1.8.2 Coating massThe manufacturer shall conduct tests using methods deemed necessary to ensure that the material complies with the requirements listed in Table 3. Commonly used met
44、hods include those given in ISO 1460, ISO 3497 or ISO 2178. Coating mass is determined by converting coating thickness measurements made with magnetic gauges (ISO 2178) or by X-ray spectrometry (ISO 3497) using the relationship “100 g/m2= 0,015 mm”. The test methods in ISO 2178 and ISO 3497 may be u
45、sed as a basis for acceptance but not for rejection. In cases of dispute, ISO 1460 shall be used as the referee method.9 Resubmission9.1 The manufacturer may resubmit, for acceptance, the products that have been rejected during earlier inspection because of unsatisfactory properties after they have
46、been subjected to a suitable treatment (for example; selection, heat treatment) which, on request, will be indicated to the purchaser. In this case, the tests should be carried out as if they applied to a new lot.9.2 The manufacturer has the right to present the rejected products for a new examinati
47、on, for compliance with the requirements for another quality or grade.10 WorkmanshipThe metallic-coated steel in corrugated cut lengths shall be free from amounts of laminations, surface flaws and other imperfections that will be detrimental to subsequent appropriate processing. Processing for shipm
48、ent in coils does not afford the manufacturer the opportunity to observe readily or to remove defective portions, as can be carried out in the cut-length product.ISO 16172:2011(E) ISO 2011 All rights reserved 5BS ISO 16172:201111 Inspection and acceptance11.1 While not usually required for products
49、covered by this International Standard, the purchaser may specify that inspection and tests for acceptance be observed prior to shipment from the manufacturers works. In these cases, the manufacturer shall afford the purchasers inspector all reasonable facilities to determine that the steel is being furnished in accordance with this International Standard.11.2 Steel that is reported to be defective after arrival at the users works shall be set aside, properly and correctly identified, and adequately protec
