1、BRITISH STANDARDBS EN 10021:2006General technical delivery conditions for steel productsThe European Standard EN 10021:2006 has the status of a British StandardICS 77.140.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g5
2、1g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 10021:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2007 BSI 2007ISBN 978 0 580 50077 0National forewordThis British Standard was published by BSI. It
3、 is the UK implementation of EN 10021:2006. It supersedes BS EN 10021:1993 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/5, Technical delivery conditions, classification and designation of steels.A list of organizations represented on ISE/5 can b
4、e obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. N
5、o. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10021December 2006ICS 77.140.01 Supersedes EN 10021:1993 English VersionGeneral technical delivery conditions for steel productsConditions gnrales techniques de livraison des produitsen acierAllgemeine technische Lieferbedingungen frS
6、tahlerzeugnisseThis European Standard was approved by CEN on 25 November 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibli
7、ographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a
8、CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
9、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 200
10、6 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10021:2006: EEN 10021:2006 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Information to be supplied by the purchaser .6 5 Manufacturing
11、 process .6 6 Supply by an intermediary6 7 Requirements.7 7.1 General7 7.2 Chemical composition 7 7.3 Mechanical properties.7 7.4 Surface and internal quality7 7.4.1 General7 7.4.2 Detection of discontinuities7 7.4.3 Removal of discontinuities .7 7.4.4 Repairs by welding 8 8 Inspection .8 8.1 Type o
12、f inspection documents and type of inspection .8 8.2 Non-specific inspection 8 8.3 Specific inspection 8 8.3.1 General8 8.3.2 Testing frequency9 8.3.3 Sampling conditions and test pieces 9 8.3.4 Test procedures.10 8.4 Invalidation of test results 11 8.5 Rounding of results of mechanical and chemical
13、 tests 11 9 Sorting and reprocessing .11 10 Marking .12 11 Disputes12 Bibliography 17 EN 10021:2006 (E) 3 Foreword This document (EN 10021:2006) has been prepared by Technical Committee ECISS/TC 9 “Technical conditions of delivery and quality control”, the secretariat of which is held by IBN/BIN. Th
14、is European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. According to the CEN/CENELEC Internal Regulations, the na
15、tional standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
16、Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 10021:2006 (E) 4 1 Scope This European Standard specifies the general technical delivery conditions for all steel products covered by EN 10079 with the exception of steel castings and powder metallurgical produc
17、ts. Where the delivery requirements agreed for the order or specified in the appropriate product specification differ from the general technical delivery conditions defined in this European Standard, then the requirements agreed for the order or specified in the appropriate product specification app
18、ly. NOTE Inspection documents are covered by EN 10168 and EN 10204. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced doc
19、ument (including any amendments) applies. CR 10261, ECISS Information Circular 11 Iron and steel Review of available methods of chemical analysis EN 10020:2000, Definition and classification of grades of steel EN 10052:1993, Vocabulary of heat treatment terms for ferrous products EN 10079:1992, Defi
20、nition of steel products EN 10204:2004, Metallic products Types of inspection documents EN ISO 377, Steel and steel products Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997) ISO 31-0:1992, Quantities and units Part 0: General principles 3 Terms and definition
21、s For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10052:1993, EN 10079:1992, EN 10204:2004 and the following apply. 3.1 cast (heat) analysis chemical analysis representative of the cast (heat) determined by the steelmaker at his discretion in a manner of his c
22、hoice 3.2 inspection conformity evaluation by observation and judgment accompanied as appropriate by measurement, testing or gauging 3.3 inspection representative(s) one or more individual(s) who is/are either: a) the inspector(s) designated in any official regulation; b) the manufacturers authorize
23、d inspection representative(s), independent from the manufacturing department; c) the purchasers authorized inspection representative(s) EN 10021:2006 (E) 5 NOTE 1 The inspection representatives mentioned in a) and c) are referred to in the text as external inspection representatives. NOTE 2 The ins
24、pection representatives validate the inspection and test results. Inspection and testing can also be carried out by the manufacturing department. 3.4 non-specific inspection inspection carried out by the manufacturer in accordance with his own procedures to assess whether products defined by the sam
25、e product specification and made by the same manufacturing process are in compliance with the requirements of the order or not NOTE The products inspected may not necessarily be the products actually supplied. 3.5 product analysis chemical analysis carried out on a sample of the product 3.6 rough sp
26、ecimen part of the sample having undergone forming and/or machining, followed by heat treatment where appropriate, for the purpose of producing test pieces (see Figure 1) 3.7 sample sufficient quantity of material taken from the sample product for the purposes of producing one or more test pieces (s
27、ee Figure 1) NOTE In certain cases, the sample can be the sample product itself or the rough specimen. 3.8 sample product item (a sheet, for example) selected from a test unit for the purpose of obtaining test pieces (see Figure 1) NOTE In certain cases the sample product can be the sample itself. 3
28、.9 sequential testing group or series of tests from which the average and individual results are used to demonstrate that the requirements of the order and/or product specification have been satisfied 3.10 specific inspection inspection carried out, before delivery, according to the product specific
29、ation on the products to be supplied or on test units of which the products supplied are part, in order to verify that these products are in compliance with the requirements of the order 3.11 testing determination of one or more characteristics according to a procedure 3.12 test piece part of the sa
30、mple, with specified dimensions, machined or un-machined, brought to a required condition for submission to a given test (see Figure 1) NOTE In certain cases, the test piece can be the sample itself or the rough specimen. EN 10021:2006 (E) 6 3.13 test unit number of pieces or mass of products to be
31、accepted or rejected together, on the basis of the tests to be carried out on sample products in accordance with the requirements of the product specification or order (see Figure 1) 4 Information to be supplied by the purchaser 4.1 The purchaser shall select the steel grade, the shape of the produc
32、t and the dimensions, taking the intended processing and use into account. He may take the manufacturers advice in making his choice. The order shall provide all the information necessary for describing the required product and its characteristics and details concerning delivery, e.g.: a) mass, leng
33、th, area, number of pieces; b) the product form (it may be a drawing number for example); c) the nominal/specified dimensions; d) the tolerances on the characteristics in a), b) and c); e) the steel designation; f) the delivery conditions (type of heat treatment, surface treatment etc.); g) the spec
34、ific requirements for surface and/or internal quality (see 7.4); h) the type of inspection document (see EN 10204) if required; i) the inspection requirements when not specified in the product specification (see Clause 8); j) the requirements for marking, packing and loading; k) any optional (supple
35、mentary) requirements provided for by the specification to apply. 4.2 The information in 4.1 shall be specified either by reference to one or more standards or, in the absence of a standard, by stipulation of the required characteristics and conditions. If, in an order, reference is made to a given
36、standard without specifying its edition date, this reference shall be interpreted as being the latest edition at the date of the order acknowledgment. 5 Manufacturing process The manufacturing process shall be left to the discretion of the manufacturer unless otherwise agreed at the time of enquiry
37、and order or otherwise specified in the product specification. NOTE The manufacturing process covers all operations up to the delivery of the product. 6 Supply by an intermediary When a product is supplied by an intermediary, he shall submit to the purchaser, without any changes to it, the manufactu
38、rers documentation. This documentation from the manufacturer shall be accompanied by suitable means of identification of the product, in order to ensure the traceability between the product and the documentation (see Clause 10). EN 10021:2006 (E) 7 If the intermediary has changed the dimensions of t
39、he product, he shall supply an additional document of compliance for these particular new conditions. This also applies to all special requirements given in the order and not defined in the manufacturers documentation. NOTE Any organization which during processing changes the metallurgical state of
40、the product is considered as a product or material manufacturer. 7 Requirements 7.1 General The products shall comply with the requirements of the order. Consequently, the manufacturer shall carry out appropriate process control and inspection to ensure that the delivery complies with the requiremen
41、ts of the order, irrespective of the type of inspection document required (see Clause 8). NOTE Examples for quality management systems can be found in appropriate documents, e.g. EN ISO 9001. 7.2 Chemical composition Requirements concerning the chemical composition shall be considered to refer to th
42、e cast (heat) analysis unless they refer expressly to the product analysis. 7.3 Mechanical properties 7.3.1 Where, in the product specification, the mechanical properties are specified by dimensional categories e.g. based on thickness or diameter, the dimension to be considered is the nominal/specif
43、ied dimension of the product at the prescribed location for taking samples for mechanical tests. 7.3.2 In the absence of any specification in the order or the product specification, the mechanical properties relate to the as-delivered condition of the products. 7.3.3 Where an impact energy value is
44、specified, without any further information, it shall be interpreted as representing the average value of those individual tests which shall be assessed as described in 8.3.4.2. 7.4 Surface and internal quality 7.4.1 General All products shall have a finish appropriate to the manufacturing route. Min
45、or surface and internal discontinuities which may occur under normal manufacturing conditions shall not be a basis for rejection. Detailed requirements referring to the surface and internal quality shall, where appropriate, be agreed at the time of enquiry and order, by reference to the appropriate
46、European Standard or other relevant standard if no European Standard exists. 7.4.2 Detection of discontinuities When special techniques (radiography, ultrasonics, magnetic detection etc.) are required to detect discontinuities, they shall, as well as the test frequency and the acceptance criteria, b
47、e as specified in the product specification or as agreed at the time of enquiry and order. 7.4.3 Removal of discontinuities Surface discontinuities may be removed by appropriate means provided that the dimensions and properties of the product remain within the limits specified in either the order, p
48、roduct specification, dimensional standard or surface quality standard. EN 10021:2006 (E) 8 7.4.4 Repairs by welding When there is no provision to the contrary in the product specification or order, the inspection representative may permit local repairs by welding. This permission may apply either t
49、o the whole or only to a part of the consignment and may imply a specific welding procedure specification. 8 Inspection 8.1 Type of inspection documents and type of inspection When ordering, the purchaser shall state which type of document (see 4.1 h), if any, is required. 8.2 Non-specific inspection When the purchaser requires a test report according to type 2.2 according to EN 10204:2004 he shall, if the product specification does not cover such detail, indicate for which product characteristics values shall be given in this document. 8.3 Specific inspection 8.3
