ASTM_C_1547_-_02_2013.pdf

Designation:C154702(Reapproved 2013)Standard Classification forFusion-Cast Refractory Blocks and Shapes1This standard is issued under the fixed designation C1547;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This classification covers commercial fusion-cast refrac-tory blocks and shapes.Its purpose is to set forth the varioustypes and classes of these materials according to their miner-alogical compositions.These compositions are important todetermining their suitability for use in specified applications.This standard is not intended to cover commercial fused grainsor beads.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2.Referenced Documents2.1 ASTM Standards:2C1118 Guide for Selecting Components for Wavelength-Dispersive X-Ray Fluorescence(XRF)Systems(With-drawn 2011)3E1479 Practice for Describing and Specifying Inductively-Coupled Plasma Atomic Emission Spectrometers2.2 Other Document:“A Practical Guide for the Preparation of Specimens forX-Ray Fluorescence and X-Ray Diffraction Analysis,”Victor E.Buhrke,Ron Jenkins and Deane K.Smith,eds.,John Wiley&Sons,Inc.,New York,1998NOTE1Chemical analysis of refractory products are determined by acombination of x-ray fluorescence(XRF)and inductively coupled plasma(ICP)analyses using standard reference materials(SRM),includingvarious types of minerals and refractory materials which are availablefrom the National Institute of Standards and Technology and otherappropriate sources.3.Terminology3.1 For definitions of terms used in this classification,seeTerminology C71.4.Significance and Use4.1 This classification categorizes the defined types offused-cast refractory blocks and shapes into distinct classesbased on mineralogical composition.Such classes have histori-cally been useful for relating the defined types and classes withspecific industrial applications and for developing product orpurchasing specifications.5.Basis of Classification5.1 Fused alumina refractories are classified by the contentof soda,Na2O,as determined by chemical analysis and theresulting beta-(-)alumina(NaAl11O17)or beta-(-)alu-mina(NaMg2Al15O25)content as determined by quantitativex-ray diffraction(XRD)or by quantitative image analysis ofrepresentative polished sections.NOTE2Differential rates of solidification at the surface and theinterior of fusion cast shapes,result in different grain sizes.Likewise,thesegregation of one or more components may occur during solidification.Therefore the most representative specimens are small,rapidly cooledladles or shapes(no dimension 3 in.(75 mm)obtained by casting intometallic or graphite molds directly from the pouring stream of the fusionfurnace.5.2 Fused alumina-zirconia-silica(AZS)and high zirconiarefractory types are classified by the content of monocliniczirconia(ZrO2)as determined by chemical analysis or quanti-tative image analysis on representative polished sections.5.3 Fused aluminosilicate refractories are classified by theiralumina to silica(Al2O3:SiO2)ratios as determined by chemi-cal analysis and by the amount of monoclinic zirconia presentas determined by x-ray diffraction(XRD)or quantitative imageanalysis.5.4 Fused chromium-containing refractories are classifiedby the amount of chromia present by chemical analysis and byits mineralogical form as determined by x-ray diffraction(XRD)or by quantitative image analysis.1This classification is under the jurisdiction of ASTM Committee C08 onRefractories and is the direct responsibility of Subcommittee C08.92 on The JosephE.Kopanda Subcommittee for Editorial,Terminology and Classification.Current edition approved Sept.1,2013.Published September 2013.Originallyapproved in 2002.Last previous edition approved in 2007 as C1547 02(2007).DOI:10.1520/C1547-02R13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.5 Magnesia-containing fused refractories are classified bythe amount and type of MgO(periclase)and spinel phases(R2+R3+2O4,where