EN 10001-1990 en Definition and Classification of Pig-Irons《生铁的定义和分类》.pdf

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1、CEN EN*30*001 90 3404589 0034497 T E U ROPEAN STAN DARD NORME EUROPENNE EUROPISCHE NORM EN 10001 July 1990 UDC 669.1 :001.4 Key words: Iron- and steel products, pig castings, designation, classification, chemical composition, sampling English version Definition and classification of pig-irons Dfinit

2、ion et classification des fontes brutes Begriffsbestimmung und Einteilung von Roheisen This European Standard was accepted by CEN on 28 July 1990. CEN members are bound to comply with the requirements of CEN/CENELEC Common Rules which stipulate the conditions for giving this European Standard the st

3、atus 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German

4、). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, Fran

5、ce, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue Brderode 2, B-1000 Brussels 7 O CEN

6、 1990 Copyright reserved to all CEN members F- I Ref. No. EN 10 O01 : 1990 E CEN EN*lO*OOl 90 m 3404589 OOL4498 L m Page 2 EN 10001 : 1990 Brief history This European Standard was prepared by the Technical Committee ECISS/TC 5 Definition, classification and conventional designation of pig iron and f

7、erro-alloys. The secretariat is held by FES/DIN Normenausschu Eisen und Stahl im DIN, Deutsches Institut fr Normung. This European Standard replaces the EURONORM EU 1-81 Definition and classification of pig-irons. This European Standard was adopted by CEN on 28 July 1990. According to the Common CEN

8、KENELEC Rules, being part of the Internal Regulations of CEN, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United K

9、ingdom. CEN EN*itO*OOL 90 H 3404589 0034499 3 H Element Manganese Silicon Phosphorus Chromium Other alloying elements in total 2, Contents Page 1 Purpose 3 2 Definition 3 3 Sub-division of pig-irons 3 Annex A Sampling and preparation of samples intended for the determination of the chemical composit

10、ion of pig-irons 6 Limit) 0.5 to 1 ,O (1,5 to 3,5) II ( 0.5 to 0,7) 0.06 Q 3.0) Q 4,02) 1 ,o to 1,4 1 p to 2.0 Q 0.1 Q 0,OS O ,O3 0.1 to Op2) rlodular SG) base rlodular SG) base iigher nanganese? -ow :arbon Ither inalloyed ig-Iron Pig-Pl7 si Pig-Nod Pig-Nod Mn Pig- LC Pig - s P u (4.0 to 6,5) max. 1

11、.5 6.0 Q 0.30 0,05 3) to 30,02) (4 020) CEN EN*I10*001 90 3404589 OOII4500 b = Page 4 EN 10001 : 1990 Table 2. Classification and designation of pig-iron according to its chemical composition1) 9 13 4 % C total Other Pigiron class - No. 1.1 - - 1.2 - 2.1 2.2 2.3 - - - 2.4 2.5 3.1 - - - 3.2 - 3.3 I 4

12、 .O - 5.1 - 5.2 - max. Designation I Abbreviation (3.3 to 4.8) Pig-P2 Pig-P20 Pig-Pl si (0.5 to 1.5) Q 1.5 1.5 to 2.5 (0.3 to 4.5) Q 0,12 I Pig-P3 si 4) t- Pig-P6 Si I L 0,12 to0.5 I (3.3 to 4,5) I - I Pig-PI2 si (3.5 to 4.6) 31, 6) 3) S 3,02) 0,4 to 1.5 Q 0.30 I 0,06 I 2,o to 3.5 ;piegel iron Pig-M

13、n 1 Alloyed Ither alloyed Pig-SPA )ig-iron I I 8) The unbracketed values are those which determine the classification of the pig-iron. Values given in brackets indicate, for information only, the ranges in which actual confents of the elements concerned normally lie. ) By sub-dividing this range int

14、o various sub-ranges, the class of pig-iron concerned is normally further sub-divided into different grades. 3, No minimum values are specified for other elements. Depending, for example, on the raw materials used, the pig-iron may unintentionally contain elements other than those indicated in colum

15、ns 4 to 8 and in percentages, for some elements, may reach a value of about 0.5 %. The contents of these indicated elements should not be used in the classification of the pig-iron. 4, For these classes of foundry pig-iron, different terms such as low, medium, intermediate and high phosphorus, norma

16、l haematite and semi-haematite, Cleveland etc. are used in the various parts of the world and this partly in a very different sense. Consequently, it is recommended to renounce on the international level on such terms and to apply as designations in these caies only the abbreviations given in column

17、 3. 5, Normally used for either pearlitic nodular cast-iron or for malleable cast-iron. 6, A further characteristic of these pig-iron grades is that the contents of elements prejudicing the formation of nodular graphite and promoting the formation of carbide are low according to the intended use of

18、the grade concerned. 7, This class includes pig-iron that cannot be classified either in classes 1.1 to 3.3 or in classes 5.1 and 5.2. Other alloyed pig-iron includes: a) pig-iron with a silicon content between 4,O and 8,O %; b) pig-iron with a manganese content between 6.0 and 30.0 %, provided that

19、 it cannot be classified as Spiegel iron (see class 5.1 1; c) pig-iron for which a minimum content is specified for at least one of the elements not specified in columns 4 to 8; d) pig-iron whose content of at least one of the following elements is within the limits indicated below: Cr 0.3 Mo 0.1 Ni

20、 0,3 Ti 0,2 v 0.1 w 0.1 10.0 % up to the total content of 10,O % of other elements resulting from table 1 I I I UOJ! 6!d AApunoj I N a, C O m o 2 C a, I I I aelnow ap aiuoj I I LIY IWWUI . IJZW Page 6 EN I0001 : 1990 Annex A. Sampling and preparation of samples intended for the determination of the

21、chemical composition of pig-irons A.l Field of application This annex is applicable to pig-iron in the solid state, unless otherwise agreed at the time of ordering. NOTE. In the case of pig-iron in the liquid state, spacial regulations are to be agreed between the producer and the purchaser. A.2 Num

22、ber of pigs to be taken The number of pigs to be taken shall be representative of the batch. In cases of dispute, and if there has been no other agreement between the parties, the minimum number of pigs to be taken from each batch is given in the table below. I Mass of the batch t G 10 IO 20G 40 40

23、80d160 160 G 300 300 600 Minimum number of pigs to be taken 9 11 12 14 16 18 21 24 A.3 Selection of samples A.3.1 The samples are to be taken at random, preferably in accordance with one of the procedures described below, A.3.1 .I Case of pigs arranged in piles Throw a rope having a certain number o

24、f knots onto the pile, Take as samples the pigs touched by these knots. Repeat the operation until a sufficient number of pigs are obtained. A.3.1.2 Case of pigs being loaded or unloaded Throughout the loading or unloading operations, take pigs as samples so that the time intervals between pigs are

25、approximately equal. A.4 Preparation of the sample for analysis A.4.1 Chemical analysis A.4.1 .I Machineable pigiron A.4.1 .I .I Determination of elements other than carbon In the centre of each pig taken from the batch, drill a hole 12 mm to 14 mm in diameter. Remove the.first chips which may conta

26、in surface scale and other impurities. For the same reason, cease drilling approximately 2 mm from the opposite face of the pig (see figure 1, item 1). Then treat the chips in accordance with A.4.1.3. Dimensions in millimetres I 1 2a) Second hole for taking chips for the determination of the carbon

27、content when using procedure A (see A.4.1.1.2). 2b) Rapid solidification zone from which fragments are to be taken for the determination of the carbon content when using First hole for taking chips for the determination of elements other than carbon (see A.4.1.1.1). procedure B in accordance with A.

28、4.1.1.2. Figure 1. Selection of samples from machineable pigiron CEN EN*lO*O01 90 3404589 0034503 3 Page 7 EN 10001 : 1990 A.4.1 .I .2 Determination of carbon Apply one of the two procedures A or B below. In cases of dispute, apply procedure A. Procedure A In the centre of each pig taken from the ba

29、tch and on each side, drill a hole 12 mrn to 14 mm in diameter (where appropriate, use the hole drilled in accordance with A.4.1.1). Remove the scale and other impurities about the holes on both sides of the pigs. Then drill another hole coaxial with the first hole, 20 to 24 mm in diameter in such a

30、 way that large chips are obtained and collected in a suitable container (see figure 1, item 2a). Then treat these chips in accordance with A.4.1.3. A.4.1.3 Sample for analysis for the determination of the average The chips or fragments taken according to A.4.1.1 and A.4.1.2 are reduced using approp

31、riate equipment, that means wear-resistant and, if necessary, dust-tight, to a size appropriate for chemical analysis. That is: - in the case of carbon, about 1 to 2 mm, - in the case of other elements 0.20 mm. Mix equal quantities of the material originating from each of the pigs taken. From this m

32、ixture it is possible to obtain a sample for analysis by the usual quartering method. A.4.2 Spectrometric analysis Procedure B Using a gouge or a chisel, remove from the pigs small chips of suitable size (A.4.1.3) from the lower bulging face in the skin zone which solidifies rapidly, and is in pract

33、ice free from segregation to a thickness of 5 mm (see figure 1, item 2b). It should be checked that the chips are taken from a fractured surface or, if the pigs have not been broken, that the surface impurities have been previously removed, eng. by grinding. Then treat these chips in accordance with

34、 A.4.1.3. If use of spectrometric methods of analysis is provided for, the preparation of samples shall be carried out in accordance with methods giving identical results to those used for the chemical analysis. Rapidly cooled (white solidified) analysis samples taken in the liquid condition shall b

35、e preferred in order to avoid segregation. A.5 Methods of analysis A.4.1.2 Non-machineable pig-iron Break up each pig taken from the batch, for example with a pneumatic hammer, then reduce further until pieces of a suitable size for further reduction to A.4.1.3 are obtained. A.5.1 Use either chemical or spectrometric methods of analysis. A.5.2 For the chemical analysis, apply the corresponding European Standards as far as possible.