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इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 7199 (2008): Blast Furnace Stove Refractories [MTD 15: Refractories] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 7199:2008 WiTMm maT?wwTw?*me-E@lrv (W Fqpwi’w)’ lndian Standard BLAST FURNACE STOVE REFRACTORIES — SPECIFICATION (First Revision) ICS 81.080 (3BIS 2008 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 April 2008 Price Group 2 Refractories Sectional Committee, MTD 15 FOREWORD This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized “bythe Refractories Sectional Committee had been approved by the Metallurgical Engineering Division Council. This standard was first published in 1974. In the present revision following changes have been made in Table 1: t a) Requirements of 70 percent alumina bricks and silica bricks have been added, and i b) Bulk density and creep values have been provided. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressingtheresult of a test or anlaysis, shall be rounded off in accordance with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)’, The number of significant places retained inthe rounded off value should be the same asthat ofthe specified value inthis standard. - ...,.......—.-—-— ————,—. —....—.......“....,—-..- —.-——. . IS 7199:2008 Indian Standard BLAST FURNACE STOVE REFRACTORIES — SPECIFICATION (First Revision) 1SCOPE 3 SUPPLY OF MATERIAL This standard prescribes the requirements for blast 3.1 General requirements relating to the supply of furnace stove refractories. blast furnace stove retlactories shall be as laid down in IS 1387. 2 REFERENCES 3.2 The refractories shall becompact, ofhomogeneous The following standards contain provisions,which texture and reasonably free from cracks, voids and through reference in this text constitute provisions of other flaws. They shall be burnt evenly throughout this standard. At the time of publication, the editions and shall have suftlcient mechanical strength and no indicated were valid. All standards are subject to sotl comers. revision and parties to agreement based on this standard are encouraged to investigate the possibility 4 TOLERANCE ON SIZE of applying the most recent editions of the standards Unless otherwise agreed, the maximum variations indicated below: from specified dimensions to be allowed shall be as IS No. Title follows: a) Checker-Bricks (Hollow): 1335:1979 :Methods for direct determination of aluminainretiactory materials (first Width and length : + O _ 4 mm provided that at revision) least 50 percent of the 1387:1993 IGeneralrequirements forthe supply bricks in the offered lot Dfmetallurgical materials (second shall fall within the revision) tolerance + Omm 1527:1972 Methods of chemical analysis of -3 highsilica refractory materials (@t Height : +1.0 percent (for dry revision) process) 12107 Methods of chemical anlaysis of alumino-silicate refractory +1.5 percent (for plastic materials: process) (Part 1):1987 Determination of loss on ignition b) Checker-Bricks (Rectangular): (Part 2) :1987 Determination of silica Length +1 (Part 3): 1987 Determination of aluminium –2mm (Part 4): 1987 Determination of phosphorus Width and : +1 mm (Part 5): 1987 Determination of titanium thickness (Part 6) :1987 Determination of iron c) Other Bricks : AI.5 percent or *2 mm, (Part 7): 1987 Determination of manganese whichever is greater (Part 8): 1987 Determination of calcium and 5 TYPES magnesium Theblast furnace stoverefractories shallbeofalumina (Part 9): 1987 Determination of sodium and bricks and silica bricks. potassium by flame photometry (Part 10): 2001 Determination of iron, manganese, 6 CHEMICAL COMPOSITION calcium and magnesium by AAS Alumina, silica and iron oxide contents of alumina method 1 1S 7199:2008 andsilica bricks when determined in accordance with 8 MARKING 1S 12107 (Parts 1 to 10) and IS 1527 shall be as 8.1 Eachrefractory brick shallbe clearly marked with follows: 7Jpe 1 Type 2 ~pe 3 Type 4 Type 5 Silica Brick AltOJ, percent, Min 70 62 54 45 37 1.0Max FezO,,percent, Max 1.0 1.5 1.8 2.0 2.0 1.0Mm Alkali, percent, Max 0.5 0.6 0.6 0.6 1.6 CaO, percent, Max — — — 3.0 Si02, percent, Min — — . 95 NOTE—Thealuminacontentmayalsobedeterminedaccordingtothemethodsgivenin1S1335, 7 PHYSICAL REQUIREMENTS the manufacturer’s name or trade-mark and type of 7.1 The physicalrequirementsofblastfurnacestove the material. refractories shall conform to the values given in 8.2 BIS Certification Marking Table 1. The refractory bricks may also be marked with the 7.2 Cold Crushing Strength Standard Mark. For testing cold crushing strength of hollow 8.2.1 The use of the Standard Mark is governed by checker-bricks a 80-mm height test sample with fullcross-section becutfromthemiddle portion ofthe theprovisionsofBureau oflndian Standards Act, 1986 and Rules and Regulations made thereunder. The cylinder and be level led at both ends, making details of conditions under which the Iicence for the them parallel and shall be used as atest specimen. In useofStandardMarkmaybe granted tomanufacturers the case of spalling resistance of a Mckee Checker- orproducersmaybe obtainedfromtheBureauofIndian Bricks a quarter section test piece consisting of full length shall be taken as showninFig. 1. Standards. i FIG.1 TESTPIECEFORDETERMINATIONOFSPALLINGRESISTANCEOFMCKEECHECKER-BRICKS 2 Table 1Physical Requirements of Blast Furnace Stove Refractories (Foreword, and Clause 7.1) S1 Characteristic SilicaBrick No. A { > Checker Solid &&&&& (1) (2) (3) (4) (5) (6) (7) (8) (9) O pyrometricconeequivalent 1830 1830 1800 1730 1700 1700 1700 Referencetemperature“C,Mirr ii) Apparentporosity,percentbyvolume, 20 22 19 21 20 21 18 20 18 20 23 21 Max iii) Coldcrushingstrengtl,kgffcmz,~in 600 400 600 400 400 350 400 350 350 300 300 350 iv) Permanentlinearchangeafterreheating +0.5at1500”C +0.5at1500°C *0.5at1500”C +o.~atI450”C +0.5at1350”C +0.2at1500”C for2hatspecifiedtemperature,percent v) Refractorinessunderload 1650 1550 1480 1450 1350 1650 (ta~C,(2kgf7cm’) vi) Spallingresistance(smallprismtest) +30 cycles +30cycles +30cycles +30cycles +30 cycles IOOO”Ctoair vii) Bulkdensity,glee,Min 2.50 2.40 2.45 2.35 2.40 2.30 2.20 2.20 2.10 2.10 1.75 1.80 viii) Creepunder2kglcmzat 0.25at1500”C 0.25at1450”C 0.25at1350°C 0.25at12XYC 0.25at1200”C 0.20at1500°C specifiedtemperature (20to50h),percent,Mac ix) Truespecificgravity,g/cc,Ma Average,< 2.33 - Nosinglevalue.> — 2.34 - @ Residualquartz,pereent,average — 1.0 1.0 Residualquartz.percent,MUX — 1.5 1.5 NOTE— Forhandmouldedshapesphysicalrequirementsofapparentporositv,bulkdensityandcoldcrushingstrengthwillbesameasthatofcheckers. z .s .. .* - Bureau of Indian Standards BIS is a statutory institution established under the Bureau of Indian Standard~ Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright 131Shas the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission inwriting ofBIS.This doesnotpreclude the freeuse, inthe course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publications), BIS. Review of Indian Standards Amendments are issued to standards asthe need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments isreaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it istaken up for revision. Users of Indian Standards should ascertain that they are inpossession ofthe latestamendments oredition byreferring tothe latest issue of ‘BIS Catalogue’ and’ Standards: Monthly Additions’. This Indian Standard has been developed from Dot: No. MID 15 (4649). Amendments Issued Since Publication Amend No. Date of Issue Text Affected 4 BUREAUOFINDIANSTANDARDS Headquarters: Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telephones: 23230131,23233375,2323 9402 website :www.bis.org.in Regional Offices: Telephones Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg 23237617 NEW DELHI 110002 { 23233841 Eastern : 1/14 C.I.T. Scheme VII M, V.I.P. Road, Kankurgachi 23378499,23378561 KOLKATA 700054 { 23378626,23379120 Northern : SCO 335-336, Sector 34-A, CHANDIGARH 160022 2603843 { 2609285 Southern : C.I.T. Campus, IV Cross Road, CHENNAI 600113 2254 i216, 22541442 { 22542519,22542315 Western : Manakalaya, E9 MlDC, Marol, Andheri (Fwt) 128329295,28327858 MUMBAI 400093 128327891,28327892 Branches : AHMEDABAD. BANGALORE. BHOPAL.BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. PARWANOO. PATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM. VISAKHAPATNAM. PrintedatSimcoPrintingPress,Delhi