1、February 2012 Translation by DIN-Sprachendienst.English price group 16No 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).I
2、CS 77.080.10!$y“1866199www.din.deDDIN EN 16124Founding Low-alloyed ferritic spheroidal graphite cast irons for elevatedtemperature applicationsEnglish translation of DIN EN 16124:2012-02Gieereiwesen Niedriglegiertes ferritisches Gusseisen mit Kugelgraphit fr Anwendungen bei hherenTemperaturenEnglisc
3、he bersetzung von DIN EN 16124:2012-02Fonderie Fontes ferritiques graphite sphrodal faiblement allies pour applications hautetempratureTraduction anglaise de DIN EN 16124:2012-02www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.3901.
4、12 DIN EN 16124:2012-02 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 190 “Foundry technology” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Gieereiwesen (Foundry
5、 Practice Standards Committee), Working Committee NA 036-00-01 AA Gusseisenwerkstoffe. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16124 November 2011 ICS 77.080.10 English Version Founding - Low-alloyed ferritic spheroidal graphite cast irons for elevated temperature applications Fonderie
6、- Fontes ferritiques graphite sphrodal faiblement allies pour applications haute temprature Gieereiwesen - Niedriglegiertes ferritisches Gusseisen mit Kugelgraphit fr Anwendungen bei hheren TemperaturenThis European Standard was approved by CEN on 15 October 2011. CEN members are bound to comply wit
7、h the CEN/CENELEC Internal Regulations which 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 Manag
8、ement Centre or to any CEN member. This 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 sta
9、tus as the official versions. CEN members 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, Portuga
10、l, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means re
11、served worldwide for CEN national Members. Ref. No. EN 16124:2011: EEN 16124:2011 (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 Chemical composition 77.2 Microstructure 7
12、7.3 Mechanical properties .88 Sampling .98.1 General 98.2 Cast samples for tensile testing .98.3 Samples cut from a casting . 119 Test methods . 159.1 Chemical analysis . 159.2 Micrographic examination . 159.3 Tensile test 159.4 Hardness test 169.5 Specific test . 1610 Retests . 1710.1 Need for rete
13、sts. 1710.2 Test validity . 1710.3 Non-conforming test results 1710.4 Heat treatment of samples and castings 1711 Inspection documentation . 17Annex A (informative) Guidance values of mechanical properties for 3 special grades 18Annex B (informative) Properties of low alloyed ferritic spheroidal gra
14、phite cast irons at elevated temperatures . 19Annex C (informative) Additional information on general mechanical and physical properties . 33Annex D (informative) Heat treatment . 34Annex E (informative) Nodularity 35Annex F (normative) Sectioning procedure for cast samples 36Bibliography . 37DIN EN
15、 16124:2012-02 EN 16124:2011 (E) 3 Foreword This document (EN 16124:2011) has been prepared by Technical 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
16、text or by endorsement, at the latest by May 2012, and conflicting national standards shall be withdrawn at the latest by May 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 f
17、or identifying any or all such patent rights. Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 7 “Spheroidal graphite, silicon molybdenum and austempered ductile iron“ to prepare EN 16124. According to the CEN/CENELEC Internal Regulations, the national standards o
18、rganizations 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, Netherlands, Norway, Poland,
19、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 16124:2012-02 EN 16124:2011 (E) 4 Introduction This European Standard classifies low-alloyed ferritic spheroidal graphite cast irons, principally used for their heat and oxidation resistance properties.
20、 NOTE Ferritic spheroidal graphite cast irons alloyed with silicon and molybdenum is also known as SiMo cast irons. Due to the ferritic structure and the silicon and molybdenum content, these cast irons allow producing castings which are resistant to distortion and oxidation at high temperatures. Ni
21、ne grades of low-alloyed ferritic spheroidal graphite cast iron are defined by their silicon and molybdenum content. Typical applications for the first three grades are medium to heavy castings like turbine housings and compressor parts. The other six grades are mainly applied for exhaust manifolds
22、and turbocharger parts in automotive applications. The mechanical properties of the material can be evaluated on machined test pieces prepared from cast samples or samples cut from a casting. Additional information on technical properties for low-alloyed ferritic spheroidal graphite cast iron is giv
23、en in Annex B and Annex C. DIN EN 16124:2012-02 EN 16124:2011 (E) 5 1 Scope This European Standard defines the grades and the corresponding requirements for low-alloyed ferritic spheroidal graphite cast irons for elevated temperature applications. These requirements are specified in terms of chemica
24、l composition: as given for each of the grades, graphite form and matrix structure: spheroidal graphite in a predominantly ferritic matrix, mechanical properties measured on machined test pieces prepared from cast samples. This European Standard does not cover technical delivery conditions for iron
25、castings, see EN 1559-1 1 and EN 1559-3 2. 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 document (including any amen
26、dments) applies. EN 10204, Metallic products Types of inspection documents EN ISO 945-1:2008, Microstructure of cast irons Part 1: Graphite classification by visual analysis (ISO 945-1:2008) EN ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method (ISO 6506-1) EN ISO 6892-1, Metal
27、lic materials Tensile testing Part 1: Method of test at room temperature (ISO 6892-1) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 low alloyed ferritic spheroidal graphite cast iron cast iron material with carbon mainly present in the form
28、 of spheroidal graphite particles, alloyed with silicon in order to produce a predominantly ferritic matrix and alloyed with molybdenum to improve mechanical properties at elevated temperatures 3.2 graphite spheroidizing treatment operation that brings the liquid iron into contact with a substance t
29、o produce graphite in the predominantly spheroidal (nodular) form during solidification NOTE This operation is often followed by a second one called inoculation. 3.3 cast sample quantity of material cast to represent the cast material, including separately cast sample, side by side cast sample and c
30、ast-on sample 3.4 separately cast sample sample cast in a separate sand mould under representative manufacturing conditions and material grade DIN EN 16124:2012-02 EN 16124:2011 (E) 6 3.5 side-by-side cast sample sample cast in the mould alongside the casting, with a joint running system 3.6 cast-on
31、 sample sample attached directly to the casting 3.7 relevant wall thickness wall thickness 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 numbe
32、r as given in Table 1. NOTE The designation system is in accordance with EN 1560 3. In the case of samples cut from the casting, the letter C is added at the end of the designation by symbol. 5 Order information The following information shall be supplied by the purchaser: a) the number of this Euro
33、pean Standard; b) the designation of the material; c) the relevant wall thickness of the casting; d) any special requirements. All requirements 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
34、 and EN 1559-3. 6 Manufacture Unless otherwise specified by the purchaser, the method of manufacture of low-alloyed ferritic spheroidal graphite cast irons and any heat treatment required to obtain the specified mechanical properties and microstructure shall be left to the discretion of the manufact
35、urer. The manufacturer shall ensure that the requirements defined in this European Standard are met for the material grade specified in the order. All agreements between the manufacturer and the purchaser shall be made by the time of acceptance of the order. DIN EN 16124:2012-02 EN 16124:2011 (E) 7
36、7 Requirements 7.1 Chemical composition The silicon and molybdenum content of low-alloyed ferritic spheroidal graphite cast iron grades shall be in accordance with Table 1. Unless otherwise agreed, the content of other elements shall be left to the discretion of the manufacturer. If the presence of
37、any element specified in Table 1 is required to be outside the limits indicated, or if any other alloying elements are required, their contents shall be agreed between the manufacturer and the purchaser and specified in the order. Table 1 Chemical composition Material designation Silicon % (mass fra
38、ction) Molybdenum % (mass fraction) Symbol NumberEN-GJS-SiMo25-5 5.3111 2,3 to 2,7 0,4 to 0,6 EN-GJS-SiMo30-7 5.3112 2,8 to 3,2 0,6 to 0,8 EN-GJS-SiMo35-5 5.3113 3,3 to 3,7 0,4 to 0,6 EN-GJS-SiMo40-6 5.31143,8 to 4,2 0,5 to 0,7 EN-GJS-SiMo40-10 5.3115 0,8 to 1,1 EN-GJS-SiMo45-6 5.31164,3 to 4,7 0,5
39、to 0,7 EN-GJS-SiMo45-10 5.3117 0,8 to 1,1 EN-GJS-SiMo50-6 5.31184,8 to 5,2 0,5 to 0,7 EN-GJS-SiMo50-10 5.3119 0,8 to 1,1 7.2 Microstructure 7.2.1 Graphite structure The graphite structure shall be mainly of form V and Vl in accordance with EN ISO 945-1. A more precise definition may be agreed upon b
40、y the time of acceptance of the order. NOTE Annex E gives more information on nodularity. 7.2.2 Matrix structure The matrix structure shall consist of minimum 85 % ferrite, the balance consisting of pearlite and carbides. Carbides can be present to a maximum of 5 %. Other limits may be agreed upon b
41、y the time of acceptance of the order. DIN EN 16124:2012-02 EN 16124:2011 (E) 8 7.3 Mechanical properties 7.3.1 Tensile properties The mechanical properties of the grades of cast irons obtained from cast samples with a thickness equal or less than 30 mm shall be in accordance with Table 2. Other req
42、uirements, such as the mechanical properties to be met on samples with a thickness 30 mm or at specified locations on the castings, shall be agreed between the manufacturer and the purchaser and specified in the order. If applicable, the position of the cast-on sample or the specified location on th
43、e casting shall be agreed between the manufacturer and the purchaser and specified in the order. NOTE Tensile testing requires sound test pieces in order to guarantee pure uni-axial stress during the test. 7.3.2 Hardness Guidance values for the Brinell hardness range of the material grades are given
44、 in Table 2 and are applicable to the casting. Table 2 Mechanical properties measured at ambient temperature on test pieces machined from cast samples of low-alloyed ferritic spheroidal graphite cast irons Material designation 0,2 % proof strength Tensile strength Elongation Brinell hardness range a
45、Rp0,2 Rm A Symbol Number MPa MPa % HBW min. min. min. EN-GJS-SiMo25-5 5.3111 Guidance values are given in Annex A EN-GJS-SiMo30-7 5.3112 EN-GJS-SiMo35-5 5.3113 EN-GJS-SiMo40-6 5.3114 380 480 8 190 to 240 EN-GJS-SiMo40-10 5.3115 400 510 6 190 to 240 EN-GJS-SiMo45-6 5.3116 420 520 7 200 to 250 EN-GJS-
46、SiMo45-10 5.3117 460 550 5 200 to 250 EN-GJS-SiMo50-6 5.3118 480 580 4 210 to 260 EN-GJS-SiMo50-10 5.3119 500 600 3 210 to 260 aValues for information, measured on the casting. DIN EN 16124:2012-02 EN 16124:2011 (E) 9 8 Sampling 8.1 General Samples shall be made from the same material as that used t
47、o produce the casting(s) which they represent. Several types of samples (separately cast samples, cast-on samples, side-by-side cast samples, samples cut from a casting) can be used, depending on the mass and wall thickness of the casting. When relevant, the type of sample should be agreed between t
48、he manufacturer and the purchaser. Unless otherwise agreed the choice of the option is left to the discretion of the manufacturer. When the mass of the casting exceeds 2 000 kg and its thickness exceeds 60 mm, cast-on samples should preferably be used; the dimensions and the location of the cast-on sample shall be agreed between the manufacturer and the purchaser by the time of acceptance of the order. If the spheroidizing treatment is
