1、May 2012 Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77
2、.080.10!$|C7“1893220www.din.deDDIN EN 1562Founding Malleable cast ironsEnglish translation of DIN EN 1562:2012-05Gieereiwesen TempergussEnglische bersetzung von DIN EN 1562:2012-05Fonderie Fontes mallablesTraduction anglaise de DIN EN 1562:2012-05SupersedesDIN EN 1562:2006-08www.beuth.deDocument com
3、prises 21 pagesIn case of doubt, the German-language original shall be considered authoritative.04.12 DIN EN 1562:2012-05 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 190 “Foundry technology”, Working Group WG 6 “Malleable c
4、ast irons” (Secretariat: IPQ, Portugal). The responsible German body involved in its preparation was the Normenausschuss Gieereiwesen (Foundry Practice Standards Committee), Working Committee NA 036-00-01 AA Gusseisenwerkstoffe. Amendments This standard differs from DIN EN 1562:2006-08 as follows: a
5、) in Clause 3 further terms and definitions have been added; b) in Clause 5 “Order information” “item d) special requirements” has been added; c) Subclause 7.5 “Impact energy” has been revised; d) material numbers are now in accordance with DIN EN 1560 e) in Table 1 the “relevant wall thickness” has
6、 been included; f) Subclause 8.2 “Cast samples” has been restructured; g) Subclause 9.3 “Brinell hardness” and Clause 10 “Retests” have been revised; h) the former Annex A “Determination of 0,2 % proof stress”, Annex B “Brinell hardness” and Annex C “Impact resistance and ductility especially at low
7、 temperatures“ are now to be found under Clause 9; i) the Bibliography (which is no longer an annex) has been transferred to the end of the standard; j) a new Annex A “Comparison of malleable cast iron material designations according EN 1560 and ISO/TR 15931” has been included; k) a new Annex ZA “Re
8、lationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC” has been added. Previous editions DIN 1692: 1930-01, 1940-03, 1950-11, 1963-06, 1982-01 DIN 50149: 1951-03, 1967-06, 1988-01 DIN EN 1562: 1997-08, 2006-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE N
9、ORM EN 1562 March 2012 ICS 77.080.10 Supersedes EN 1562:1997English Version Founding - Malleable cast irons Fonderie - Fontes mallables Gieereiwesen - Temperguss This European Standard was approved by CEN on 14 January 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations w
10、hich stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This
11、European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN member
12、s are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, S
13、weden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nationa
14、l Members. Ref. No. EN 1562:2012: EEN 1562:2012 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Designation 65 Order information 66 Manufacture 67 Requirements .77.1 General 77.2 Tensile strength and elongation 77.3 0,2 % Proof strength 77.4
15、Brinell hardness .77.5 Impact energy .78 Samples . 108.1 General . 108.2 Cast samples . 109 Test methods . 129.1 Tensile test 129.2 0,2 % proof strength . 129.3 Brinell hardness 129.4 Impact test . 1310 Retests . 1310.1 Need for retests. 1310.2 Test validity . 1310.3 Non-conforming test results 1410
16、.4 Heat treatment of samples and castings 1411 Inspection documentation . 14Annex A (informative) Comparison of malleable cast iron material designations according EN 1560 and ISO/TR 15931 1, 6 . 15Annex B (informative) Un-notched impact test . 16Annex C (Informative) Significant technical changes b
17、etween this European standard and the previous edition 17Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 18Bibliography . 19DIN EN 1562:2012-05 EN 1562:2012 (E) 3 Foreword This document (EN 1562:2012) has been prepared by T
18、echnical Committee CEN/TC 190 “Foundry technology”, the secretariat of which is held by DIN. This 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 September 2012, and conflicting national standards shal
19、l be withdrawn at the latest by September 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1562:1997.
20、 This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. Withi
21、n its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 6 “Malleable cast iron” to revise EN 1562:1997. Annex C provides details of significant technical changes between this European Standard and the previous edition. According to the CEN/CENELEC Internal Regulations, the na
22、tional standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherland
23、s, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 1562:2012-05 EN 1562:2012 (E) 4 Introduction This European Standard classifies malleable cast irons into two groups. The first group is concerned with decarburized irons referr
24、ed to as whiteheart malleable cast iron. The second group is non-decarburized irons referred to as blackheart malleable cast iron. Both groups, except completely decarburized whiteheart malleable cast iron, contain free carbon as graphite, called temper carbon. Both groups have grades with structure
25、s that can range from ferrite to pearlite and/or other transformation products of austenite. Materials are designated in terms of tensile strength and percentage elongation. Weldablility is an important property of malleable cast irons. Malleable cast irons have good impact resistance and ductility
26、at low temperatures. In this standard, a new designation system by number, as established in EN 1560 1, is given. NOTE This designation system by number is based on the principles and the structure as set out in EN 10027-2 2 and so corresponds with the European numbering system for steel and other m
27、aterials. Some malleable cast iron grades can be used for pressure equipment. The permitted material grades of malleable cast iron for pressure applications and the conditions for their use are given in specific product or application standards. For the design of pressure equipment, specific design
28、rules apply. Annex ZA gives information relating to the conformance of permitted malleable cast iron grades to the Pressure Equipment Directive 97/23/EC. DIN EN 1562:2012-05 EN 1562:2012 (E) 5 1 Scope This European Standard defines grades and the corresponding requirements for malleable cast irons.
29、This European standard specifies five grades of whiteheart malleable cast iron and nine grades of blackheart malleable cast iron, based on mechanical properties measured on cast samples (which are test pieces). This European Standard specifies Brinell hardness values determined only when these value
30、s are requested by the purchaser. This European Standard does not cover technical delivery conditions for malleable cast iron castings. Reference should be made to EN 1559-1 3 and EN 1559-3 4. This European Standard does not cover chemical composition, except phosphorous (see Clause 6). Grade EN-GJM
31、B-300-6 (5.4100) malleable cast iron shall not be used for any pressure application, e. g. also pressure applications not covered by the Pressure Equipment Directive 97/23/EC. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are ind
32、ispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 764-5:2002, Pressure equipment Part 5: Compliance and inspection Documentation of materials EN 10204:2004
33、, Metallic products Types of inspection documents EN ISO 148-1:2010, Metallic materials Charpy pendulum impact test Part 1: Test method (ISO 148-1:2009) EN ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method (ISO 6506-1) EN ISO 6892-1:2009, Metallic materials Tensile testing Par
34、t 1: Method of test at room temperature (ISO 6892-1:2009) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 malleable cast iron cast material, mainly iron and carbon based, which solidifies in the as-cast condition with a graphite-free (white)
35、structure and achieves its final properties after a heat treatment 3.2 whiteheart malleable cast iron cast material, mainly iron and carbon based, which is cast white and then given a heat treatment in a decarburizing atmosphere to produce a material which is partially or entirely decarburized. Any
36、remaining graphite is in the form of temper carbon 3.3 blackheart malleable cast iron cast material, mainly iron and carbon based, which is cast white and then given a non-decarburizing heat treatment, to produce a material in which all graphite is in the form of temper carbon DIN EN 1562:2012-05 EN
37、 1562:2012 (E) 6 3.4 primary graphite graphite which precipitates in the flake form during solidification Note 1 to entry: Primary graphite is more correctly referred to as eutectic graphite. 3.5 cast sample quantity of material cast to represent the cast material, including separately cast sample a
38、nd side-by-side cast sample 3.6 separately cast sample sample cast in a separate sand mould under representative manufacturing conditions and material grade 3.7 side-by-side cast sample sample cast in the mould alongside the casting, with a joint running system 3.8 relevant wall thickness wall thick
39、ness representative of the casting, defined for the determination of the size of the cast samples to which the mechanical properties apply 4 Designation The material shall be designated either by symbol or by number as given in Table 1 or Table 2. NOTE Comparison of EN 1562 grade designations to the
40、 grades from ISO 5922:2005 5, is given in Annex A. 5 Order information The following information shall be supplied by the purchaser: a) the number of this European Standard; b) the designation of the material; c) the relevant wall thickness of the casting; d) any special requirements. All requiremen
41、ts shall be agreed between the manufacturer and the purchaser by the time of acceptance of the order e.g. technical delivery conditions according to EN 1559-1 and EN 1559-3. 6 Manufacture The method of manufacture of malleable cast iron as well as its chemical composition and heat treatment shall be
42、 left to the discretion of the manufacturer, who shall ensure compliance with the property requirements given in this European Standard for the material ordered. NOTE To produce structures such as ferrite, pearlite or other transformation products of austenite, both material types (groups) depend up
43、on either the malleablising heat treatment or the subsequent additional heat treatment and/or additions of alloying elements. For castings intended to be given additional treatment (such as galvanizing) and/or in the case of castings for use at low temperatures to optimize the impact energy of the m
44、aterial, the phosphorous content should not exceed 0,10 %. DIN EN 1562:2012-05 EN 1562:2012 (E) 7 For malleable cast iron materials to be used in special applications, the chemical composition and any special heat treatment may be the subject of an agreement between the manufacturer and the purchase
45、r by the time of acceptance of the order. 7 Requirements 7.1 General The property values apply to malleable cast irons cast in sand moulds or moulds of comparable thermal behaviour. Subject to amendments to be agreed upon in the order, they can apply to castings obtained by alternative methods, when
46、 agreed between the manufacturer and purchaser by the time of acceptance of the order. The material designation is based on the minimum mechanical properties obtained in cast samples with a diameter of 12 mm. Mechanical properties are wall thickness dependent as shown in Tables 1, 2 and 3. 7.2 Tensi
47、le strength and elongation When tested in accordance with 9.1, the values of tensile strength and percentage elongation after fracture (hereafter referred to as elongation) shall be in accordance with the requirements specified in Tables 1, 2 and 3. 7.3 0,2 % Proof strength When requested by the pur
48、chaser and agreed at the time of acceptance of the order, 0,2 % proof strength shall be determined in accordance with 9.2 and the values shall be in accordance with the requirements specified in Tables 1, 2 and 3. 7.4 Brinell hardness Brinell hardness and its range values shall only be specified when agreed between the manufacturer and the purchaser by the time of acceptance of the order. Guidance values f
