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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12475-4:1999 The Eu
2、ropean Standard EN 12475-4:1998 has the status of a British Standard ICS 81.080 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Classification of dense shaped refractory products Part 4: Special products Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:53 GMT+00:00
3、 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 June 1999 BSI 06-1999 ISBN 0 580 32322 6 BS EN 12475-4:1999
4、Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the English language version of EN 12475-4:1998. The UK participation in its preparation was entrusted by Technical Committee RPI/1, Refractory products and materials, to Subcommittee RPI/1/1, Samplin
5、g and physical testing of refractory materials, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Eur
6、opean developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI S
7、tandards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible f
8、or their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. Licensed Copy: sheffieldun sheffieldun, na, Sat
9、 Oct 28 08:57:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserv
10、ed worldwide for CEN national Members. Ref. No. EN 12475-4:1998 E EUROPEAN STANDARDEN 12475-4 NORME EUROPE ENNE EUROPA ISCHE NORM December 1998 ICS 81.080 Descriptors: refractory materials, shaped refractories, dense shaped refractory products, classifications, designation, chemical composition Engl
11、ish version Classification of dense shaped refractory products Part4: Special products Classification des produits re fractaires fac onne s denses Partie 4: Produits spe ciaux Klassifizierung dichter geformter feuerfester Erzeugnisse Teil 4: Sondererzeugnisse This European Standard was approved by C
12、EN on 5 December 1998. CEN members are bound to comply with 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 standar
13、ds 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 translation under the responsibility of a CEN member into its own language and notified to th
14、e Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United
15、Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 12475-4:1998 BSI 06-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 187, Refractory products and materials, the Secretariat of which is h
16、eld by BSI. 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 June 1999, and conflicting national standards shall be withdrawn at the latest by June 1999. EN 12475, Classification of dense shaped re
17、fractory products, consists of four parts: Part 1: Aluminasilica products; Part 2: Basic products containing less than 7 % residual carbon; Part 3: Basic products containing from 7 % to 30 % residual carbon; Part 4: Special products. According to the CEN/CENELEC Internal Regulations, the national st
18、andards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents
19、 Page Foreword2 1Scope3 2Normative references3 3Classification3 4Other refractory products7 5Designation of a special refractory product7 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12475-4:1998 BSI 06-1999 1) In preparation. 1
20、 Scope This part of EN 12475 establishes the classification and designation of dense shaped refractory products of special composition of the following series: a) oxide-based products: aluminachromic oxide; aluminachromic oxidezirconiasilica; zirconiasilica; aluminazirconiasilica; b) oxide and non-o
21、xide-based products: aluminacarbon; aluminasilicon carbidecarbon; c) non-oxide-based products: silicon carbide; carbon; d) further special products which are only designated but not classified, e.g. non-oxide products such as borides, nitrides or further combinations of the series listed above. 2 No
22、rmative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications listed hereafter. For dated references, subsequent amendments to or revisions of a
23、ny of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 955-2, Chemical analysis of refractory products Part 2: Products containing silica and/or alumina (wet
24、 method). prEN 955-3, Chemical analysis of refractory products Part 3: Chrome-bearing materials (wet methods). ENV 955-4, Chemical analysis of refractory products Part 4: Products containing silica and/or alumina (Analysis by Flame Atomic Absorption Spectrometry (FAAS) and Inductively Coupled Plasma
25、 Atomic Emission Spectrography (ICP). prEN 955-5, Chemical analysis of refractory materials XRF fused cast bead method. EN 993-3, Methods of test for dense shaped refractory products Part 3: Test methods for carbon-containing refractories. prENV 12698-11), Chemical analysis of silicon carbide refrac
26、tories Part 1: General methods for analysis of oxides, oxygen and nitrogen. prENV 12698-21), Chemical analysis of silicon carbide refractories Part 2: Products containing less than 25 % silicon carbide. prENV 12698-31), Chemical analysis of silicon carbide refractories Part 3: Products containing mo
27、re than 25 % silicon carbide. 3 Classification 3.1 Basis of classification Dense shaped special refractory products are classified according to the following six criteria: a) the type of product; b) the group determined by the content of its main chemical component(s); c) the principal raw material(
28、s); d) the state of the raw materials; e) the nature of the bond; f) any post-treatment. 3.2 Type of product The types of dense shaped special refractory product included in this classification are: a) aluminachromic oxide (ACr); b) chromic oxide (Cr); c) aluminachromic oxidezirconiasilica (ACrZS);
29、d) zirconia (Z); e) zirconiasilica (ZS); f) aluminazirconiasilica (AZS); g) aluminacarbon (AC); h) aluminasilicon carbidecarbon (ASC); i) silicon carbide (SiC); j) carbon (C). These product types shall be classified in accordance with Tables 1 to 8 by their chemical analysis, carried out on the calc
30、ined basis for oxide products and on the as-received state for non-oxide products. 3.3 Classification groups The classification groups of dense shaped special refractory products of the mentioned series shall be determined by the content of their main chemical component(s), with the designation show
31、n in Tables 1 to 8 and in accordance with the ranges given in Tables 1 to 8. 3.3.1 Classification of aluminachromic oxide and chromic oxide refractories The classification by product type and group of aluminachromic oxide and chromic oxide special refractories is given in Table 1. The two criteria f
32、or the group classification shall be the alumina and chromic oxide contents of the product types. 3.3.2 Classification of aluminachromic oxidezirconiasilica refractories The classification by product type and group of aluminachromic oxidezirconiasilica special refractories is given in Table 2. The t
33、wo main criteria for the group classification shall be the chromic oxide and alumina contents of the product types; limits on the total content of silica and zirconia are imposed on the various groups. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:53 GMT+00:00 2006, Uncontrolled Copy,
34、 (c) BSI Page 4 EN 12475-4:1998 BSI 06-1999 Table 1 Classification of aluminachromic oxide and chromic oxide special refractories Product typeGroupContents mass fraction % Al2O3Cr2O3 Aluminachromic oxideACr 90Al2O3$ 905 # Cr2O3 10 ACr 8080 # Al2O3 9010 # Cr2O3 15 ACr 7070 # Al2O3 8015 # Cr2O3 30 ACr
35、 5050 # Al2O3 7030 # Cr2O3 50 Chromic oxideCr 5010 # Al2O3 5050 # Cr2O3 90 Cr 90Al2O3 10Cr2O3$ 90 NOTEThe analysis is carried out on the calcined product in accordance with EN 955-2, prEN 955-3, ENV 955-4 or prEN 955-5. Table 2 Classification of aluminachromic oxidezirconiasilica special refractorie
36、s Product typeGroupContents mass fraction % Cr2O3Al2O3ZrO2+ SiO2 Aluminachromic oxidezirconiasilica ACrZS 1010 # Cr2O3 2520 # Al2O3 5525 # ZrO2+ SiO2 50 ACrZS 2525 # Cr2O3 4015 # Al2O3 6010 # ZrO2+ SiO2 50 ACrZS 4040 # Cr2O3 805 # Al2O3 3010 # ZrO2+ SiO2 30 NOTE 1The analysis is carried out on the c
37、alcined product in accordance with EN 955-2, prEN 955-3, ENV 955-4 or prEN 955-5. NOTE 2The ZrO2content includes HfO2. Table 3 Classification of zirconia and zirconiasilica special refractories Product typeGroupContents mass fraction % ZrO2Al2O3SiO2 ZirconiaZ 95ZrO2$ 95 Z 9090 # ZrO2 95 Z 7070 # ZrO
38、2 9010 # SiO2 25 ZirconiasilicaZS 6060 # ZrO2 7025 # SiO2 40 ZS 5050 # ZrO2 6030 # SiO2 50 ZS 3535 # ZrO2 50Al2O3 2025 # SiO2 50 NOTE 1The analysis is carried out on the calcined product in accordance with EN 955-2, ENV 955-4 or prEN 955-5. NOTE 2The ZrO2content includes HfO2. Table 4 Classification
39、 of aluminazirconiasilica refractories Product typeGroupContents mass fraction % ZrO2Al2O3SiO2 Aluminazirconiasilica AZS 55 # ZrO2 1560 # Al2O3 95SiO2 35 AZS 1515 # ZrO2 3050 # Al2O3 80SiO2 25 AZS 3030 # ZrO2 4030 # Al2O3 55SiO2 20 AZS 4040 # ZrO2 5030 # Al2O3 5525 # SiO2 40 NOTE 1The analysis is ca
40、rried out on the calcined product in accordance with EN 955-2, ENV 955-4 or prEN 955-5. NOTE 2The ZrO2content includes HfO2. 3.3.3 Classification of zirconia and zirconiasilica refractories The classification by product type and group of zirconia and zirconiasilica refractories is given in Table 3.
41、The primary criteria for classification shall be the zirconia content of the product type. For groups with lower content of zirconia, limits on silica and/or alumina are imposed on the various groups. 3.3.4 Classification of aluminazirconiasilica refractories The classification by product type and g
42、roup of aluminazirconiasilica special refractories is given in Table 4. The two main criteria for the group classification shall be the zirconia and alumina contents; limits on the silica content are imposed on the various groups. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:53 GMT+0
43、0:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 12475-4:1998 BSI 06-1999 Table 5 Classification of aluminacarbon special refractories Product typeGroupContents mass fraction % Al2O3C AluminacarbonAC 90/1Al2O3$ 901 # C 5 AC 90/5Al2O3$ 905 # C 10 AC 90/10Al2O3$ 9010 # C 15 AC 90/15Al2O3$ 9015 # C 20 A
44、C 90/20Al2O3$ 9020 # C 25 AC 90/25Al2O3$ 9025 # C 30 AluminacarbonAC 80/180 # Al2O3 901 # C 5 AC 80/580 # Al2O3 905 # C 10 AC 80/1080 # Al2O3 9010 # C 15 AC 80/1580 # Al2O3 9015 # C 20 AC 80/2080 # Al2O3 9020 # C 25 AC 80/2580 # Al2O3 9025 # C 30 AluminacarbonAC 70/170 # Al2O3 801 # C 5 AC 70/570 #
45、Al2O3 805 # C 10 AC 70/1070 # Al2O3 8010 # C 15 AC 70/1570 # Al2O3 8015 # C 20 AC 70/2070 # Al2O3 8020 # C 25 AC 70/2570 # Al2O3 8025 # C 30 AluminacarbonAC 60/160 # Al2O3 701 # C 5 AC 60/560 # Al2O3 705 # C 10 AC 60/1060 # Al2O3 7010 # C 15 AC 60/1560 # Al2O3 7015 # C 20 AC 60/2060 # Al2O3 7020 # C
46、 25 AC 60/2560 # Al2O3 7025 # C 30 AluminacarbonAC 50/150 # Al2O3 601 # C 5 AC 50/550 # Al2O3 605 # C 10 AC 50/1050 # Al2O3 6010 # C 15 AC 50/1550 # Al2O3 6015 # C 20 AC 50/2050 # Al2O3 6020 # C 25 AC 50/2550 # Al2O3 6025 # C 30 AluminacarbonAC 30/130 # Al2O3 501 # C 5 AC 30/530 # Al2O3 505 # C 10 A
47、C 30/1030 # Al2O3 5010 # C 15 AC 30/1530 # Al2O3 5015 # C 20 AC 30/2030 # Al2O3 5020 # C 25 AC 30/2530 # Al2O3 5025 # C 30 NOTE 1The analysis of alumina is carried out on the calcined product in accordance with EN 955-2, ENV 955-4 or prEN 955-5. NOTE 2The carbon content corresponds to the residual c
48、arbon content after carbonization, determined in accordance with EN 993-3. 3.3.5 Classification of aluminacarbon refractories The product type shall be classified into groups according to its alumina and carbon contents, and according to the presence or not of antioxidant additives. The product type
49、 without antioxidant additives shall be classified into groups according to Table 5. Two criteria shall be used for defining the group classification: 1) the alumina content of the product type, with each group generally covering ranges of alumina content of 10 %; 2) the residual carbon after carbonization, with each group covering ranges of residual carbon content of 5 % when the total carbon content is above 5 %. The product type with anti