1、BSI Standards PublicationBS ISO 16143-2:2014Stainless steels for general purposesPart 2: Corrosion-resistant semi-finished products, bars, rods and sectionsBS ISO 16143-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 16143-2:2014. The UK participation in
2、 its preparation was entrusted to TechnicalCommittee ISE/105, Steels for Heat Treatment, Alloy Steels, Free-Cutting Steels and Stainless Steels.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the neces
3、sary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 76080 8ICS 77.140.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard wa
4、s published under the authority of the Standards Policy and Strategy Committee on 31 May 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 16143-2:2014 ISO 2014Stainless steels for general purposes Part 2: Corrosion-resistant semi-finished products, bars, rods and
5、 sectionsAciers inoxydables pour usage gnral Partie 2: Demi-produits, barres, fils machine et profils en acier rsistant la corrosionINTERNATIONAL STANDARDISO16143-2Second edition2014-05-15Reference numberISO 16143-2:2014(E)BS ISO 16143-2:2014ISO 16143-2:2014(E)ii ISO 2014 All rights reservedCOPYRIGH
6、T PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission
7、. Permission can be requested 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 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 16143-2:2014ISO
8、16143-2:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 24 Designation 25 Information to be supplied by the purchaser. 26 Classification of grades 37 Requirements 37.1 Manufacturing process. 37.2 Delivery condition 37.3 Che
9、mical composition 37.4 Susceptibility to intergranular corrosion 47.5 Mechanical properties 47.6 Surface quality . 47.7 Internal soundness 57.8 Dimensions, tolerances on dimensions, and shape . 58 Inspection, testing, and conformance of products 58.1 General . 58.2 Inspection and testing procedures
10、and types of inspection documents . 58.3 Specific inspection and testing 68.4 Test methods . 68.5 Retests 79 Marking 7Annex A (informative) Guidelines for further treatment (including heat treatment) in fabrication .29Annex B (informative) Designations of the steels given in Table 2 and of comparabl
11、e grades covered in ASTM, EN, JIS, and GB Standards 34Annex C (informative) Applicable dimensional standards 37Bibliography .38BS ISO 16143-2:2014ISO 16143-2:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bod
12、ies). 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 committee has been established has the right to be represented on that committee. International organizations, governmental and
13、 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 electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are des
14、cribed in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn
15、 to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on th
16、e ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment
17、, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 4, Heat treatable and alloy steels.This second edit
18、ion cancels and replaces the first edition (ISO 16143-2:2004), which has been technically revised.ISO 16143 consists of the following parts, under the general title Stainless steels for general purposes: Part 1: Corrosion-resistant flat products Part 2: Corrosion-resistant semi-finished products, ba
19、rs, rods and sections Part 3: Wireiv ISO 2014 All rights reservedBS ISO 16143-2:2014INTERNATIONAL STANDARD ISO 16143-2:2014(E)Stainless steels for general purposes Part 2: Corrosion-resistant semi-finished products, bars, rods and sections1 ScopeThis part of ISO 16143 specifies the technical deliver
20、y conditions for semi-finished products, hot formed bars, rods, and sections for general purposes made of the most important corrosion-resistant stainless steel grades.NOTE 1 Throughout this part of ISO 16143, the term “general purposes” means purposes other than the special purposes mentioned in th
21、e Bibliography.NOTE 2 Heat-resistant steel grades can be found in ISO 4955 and they can be used for corrosion-resistant purposes.In addition to this part of ISO 16143, the general technical delivery requirements of ISO 404 are applicable.This part of ISO 16143 does not apply to components manufactur
22、ed by further processing the product forms listed in the first paragraph above with quality characteristics altered as a result of such further processing.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its app
23、lication. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 148-1, Metallic materials Charpy pendulum impact test Part 1: Test methodISO 377, Steel and steel products Location and prepara
24、tion of samples and test pieces for mechanical testingISO 404, Steel and steel products General technical delivery requirementsISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels Corrosi
25、on test in media containing sulfuric acidISO 6506-1, Metallic materials Brinell hardness test Part 1: Test methodISO 6892-1:2009, Metallic materials Tensile testing Part 1: Method of test at room temperatureISO 6892-2, Metallic materials Tensile testing Part 2: Method of test at elevated temperature
26、ISO 6929, Steel products VocabularyISO 9443, Heat-treatable and alloy steels Surface quality classes for hot-rolled round bars and wire rods Technical delivery conditionsISO 10474, Steel and steel products Inspection documentsISO 14284, Steel and iron Sampling and preparation of samples for the dete
27、rmination of chemical composition ISO 2014 All rights reserved 1BS ISO 16143-2:2014ISO 16143-2:2014(E)ISO 15510, Stainless steels Chemical compositionISO 20723, Structural steels Surface condition of hot-rolled sections Delivery requirementsISO/TS 4949, Steel names based on letter symbolsISO/TR 9769
28、, Steel and iron Review of available methods of analysis3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 6929 and the following apply.3.1corrosion-resistant stainless steelsteel with at least 10,5 % (mass fraction) Cr and a maximum of 1,2 % (mass fract
29、ion) C for which resistance to corrosion is of primary importance3.2product formshape of a productNote 1 to entry: See ISO 6929 for different forms of products.4 DesignationFor the steel grades covered by this part of ISO 16143, the steel names as given in the tables are allocated in accordance with
30、 ISO/TS 4949.For the steel grades covered by this part of ISO 16143, the steel numbers as given in the tables are allocated in accordance with ISO 15510.5 Information to be supplied by the purchaserIt shall be the responsibility of the purchaser to specify all requirements that are necessary for pro
31、ducts under this part of ISO 16143. Such requirements to be considered include, in the order listed but not limited to, the following:a) the desired quantity;b) the product form (e.g. square bar or round rod);c) the number of the appropriate dimensional standard (see Annex C), the nominal dimensions
32、, plus any choice of requirements;d) the type of material (steel);e) the number of this part of ISO 16143 (i.e. ISO 16143-2);f) the steel name or steel number;g) if, for the relevant steel in Tables 5 to 9 for the mechanical properties, more than one treatment condition is covered, the symbol for th
33、e desired heat treatment;h) the desired process route (see symbols in Table 4);i) if a verification of internal soundness is required, the requirements have to be agreed at the time of enquiry and order;j) any further optional test agreed between the manufacturer and purchaser at the time of enquiry
34、 and order see 8.2.3 b);2 ISO 2014 All rights reservedBS ISO 16143-2:2014ISO 16143-2:2014(E)k) the type of inspection document and its designation in accordance with ISO 10474 (see 8.2.1).EXAMPLE 10 t round bar in accordance with ISO 1035-1 and ISO 1035-4 of 50 mm diameter made of a steel grade with
35、 name X5CrNi18-10 and number 4301-304-00-I as specified in ISO 16143-2 in process route 1D, inspection certificate 3.1 as specified in ISO 10474, is designated as follows:10 t round bar ISO 1035-1 and -4 50 Steel ISO 16143-2 X5CrNi18-10 + 1D ISO 10474 3.1or10 t round bar ISO 1035-1 and -4 50 Steel I
36、SO 16143-2 4301-304-00-I + 1D ISO 10474 3.16 Classification of gradesCorrosion-resistant stainless steels covered by this part of ISO 16143 are classified according to their structure into austenitic steels, austenitic-ferritic steels, ferritic steels, martensitic steels, or precipitation-hardening
37、steels.7 Requirements7.1 Manufacturing processUnless a special steelmaking process is agreed upon when ordering, the steelmaking process shall be at the discretion of the manufacturer. When he so requests, the purchaser shall be informed what steelmaking process is being used.7.2 Delivery conditionT
38、he products shall be supplied in the delivery condition agreed in the order by reference to the process route given in Table 4 and, where different alternatives exist, to the treatment conditions given in Tables 5 to 9 (see also Annex A).7.3 Chemical composition7.3.1 The chemical composition require
39、ments given in Table 2 apply with respect to the chemical composition of the cast analysis.7.3.2 The product analysis can deviate from the limiting values for the cast analysis given in Table 2 by the values listed in Table 3. ISO 2014 All rights reserved 3BS ISO 16143-2:2014ISO 16143-2:2014(E)7.4 S
40、usceptibility to intergranular corrosionReferring to resistance to intergranular corrosion as defined in ISO 3651-2, for austenitic, austenitic-ferritic, and ferritic steels, the specifications in Tables 5, 6, and 7 apply.The susceptibility of stainless steels to intergranular corrosion is dependent
41、 on the type of environment and therefore cannot always be clearly ascertained through standard laboratory tests. The selection of the test or tests to be agreed upon should be based on experience with the use of the selected grade of steel in the intended environment.7.5 Mechanical propertiesThe me
42、chanical properties at room temperature as specified in Tables 5 to 9 apply for the relevant specified heat-treatment condition. This does not apply to process route 1U (hot rolled, not heat treated, not descaled). If, by agreement at the time of ordering, the products are to be supplied in a non-he
43、at-treated condition, the mechanical properties specified in Tables 5 to 9 shall be obtainable from reference test pieces that have received the appropriate heat treatment (simulated heat treatment).The values in Tables 10 to 14 apply for the 0,2 %- and 1 %-proof strength at elevated temperatures.NO
44、TE Austenitic steels are insensitive to brittle fracture in the solution-annealed condition. Because they do not have a pronounced transition temperature, which is characteristic of other steels, they are also useful for application at cryogenic temperatures.7.6 Surface qualityThe available surface
45、finishes are given in Table 4. Slight surface imperfections, inherent to the production process, are permitted. Exact requirements concerning the maximum depth of acceptable discontinuities for bars, rods, and sections in the relevant conditions are given in Table 1.Table 1 Maximum depth of acceptab
46、le discontinuities for bars, rods, and sectionsConditions Product forms Permissible depth of discontinuitiesaMax. % of delivered weight in excess of permissible depth of discontinuities1U, 1C, 1E, 1D Sections To be agreed upon at the time of enquiry and order on the basis of ISO 20723.1U, 1C, 1E, 1D
47、 Rounds and rod Unless not specified otherwise at the time of enquiry and order, ISO 9443 class 1 za2.1XbRounds max. 0,2 mm for d 20 mm max. 0,01 d for 20 mm 75 mm1 %Hexagons max. 0,3 mm for d 15 mm max. 0,02 d for 15 mm 0,030 0,20 0,010,20 0,60 0,020,60 1,20 0,03Silicon 1,00 +0,051,00 3,00 0,103,00
48、 6,00 0,15Manganese 1,00 +0,031,00 2,00 0,042,00 15,0 0,10Phosphorus 0,045 +0,0050,045 0,070 0,010Sulfur 0,015 +0,0030,015 0,030 0,0050,10 0,50 0,02Chromium 10,5 15,0 0,1515,0 20,0 0,2020,0 35,0 0,25Molybdenum 0,60 +0,030,60 1,75 0,051,75 8,0 0,10Nickel 1,00 +0,031,00 5,0 0,075,0 10,0 0,1010,0 20,0
49、0,1520,0 38,0 0,20Nitrogen 0,10 +0,010,10 0,60 0,02Aluminium 0,05 0,30 0,050,30 1,50 0,10Boron 0,010 +0,000 5Copper 1,00 +0,041,00 5,0 0,10Niobium 1,00 +0,05Titanium 1,00 +0,051,00 3,0 0,07Tungsten 3,00 +0,05Vanadium 0,50 +0,03a means that in one cast, the deviation can occur over the upper value or under the lower value of the specified range in Table 2, but not both at the same time. ISO 2014 All rights reser
