ASTM_A_482_-_A_482M_-_11_2016.pdf

Designation:A482/A482M11(Reapproved 2016)Standard Specification forFerrochrome-Silicon1This standard is issued under the fixed designation A482/A482M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers several grades of ferrochrome-silicon.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard.Thevalues stated in each system may not be exact equivalents;therefore,each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard.1.2.1 This specification is expressed in both inch-poundunits and in SI units;however,unless the purchase order orcontract specifies the applicable M specification designation(SI units),the inch-pound units shall apply.1.2.2 Within the text,the SI units are shown in brackets.2.Referenced Documents2.1 ASTM Standards:2A1025 Specification for Ferroalloys and Other AlloyingMaterials,General RequirementsE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE364 Test Methods for Chemical Analysis of Ferrochrome-Silicon(Withdrawn 2006)33.General Conditions for Delivery3.1 Materials furnished to this specification shall conform tothe requirements of Specification A1025,including any supple-mentary requirements that are indicated in the purchase order.Failure to comply with the general requirements of Specifica-tion A1025 constitutes nonconformance with this specification.In case of conflict between the requirements of this specifica-tion and Specification A1025,this specification shall prevail.4.Chemical Composition4.1 The various grades shall conform to the requirements asto chemical composition specified in Tables 1 and 2.4.2 The manufacturer shall furnish an analysis of eachshipment showing the percentage of each element specified inTable 1.4.3 The values shown in Table 2 are expected maximums.Upon request of the purchaser,the manufacturer shall furnishan analysis for any of these elements on a cumulative basisover a period mutually agreed upon between the manufacturerand the purchaser.5.Size5.1 The various grades are available in sizes as listed inTable 3.5.2 The sizes listed in Table 3 are typical as shipped fromthe manufacturers plant.These alloys exhibit varying degreesof friability;therefore,some attrition may be expected intransit,storage,and handling.A quantitative test is not avail-able for rating relative friability of ferroalloys.A code systemhas been developed,therefore,for this purpose,and a numberrating each product type is shown in the last column of Table3.Definitions applicable to these code numbers are given inSpecification A1025.6.Chemical Analysis6.1 The chemical analysis of the material shall be made inaccordance with the procedure for the ferroalloys as describedin Test Methods E364,or alternative methods,agreed upon bythe purchaser and supplier,that will yield equivalent results.6.2 If alternative methods of analysis are used,in case ofdiscrepancy,Test Methods E364 shall be used for reference.6.3 Where a method is not given in Test Methods E364 forthe analysis of a particular element,the analysis shall be madein accordance with a procedure agreed upon between themanufacturer and the purchaser.7.Keywords7.1 ferrochrome;ferrochrome silicon1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved Sept.1,2016.Published September 2016.Originallyapproved in 1963.Last previous edition approved in 2011 as A482/A482M 11.DOI:10.1520/A0482_A0482M-11R16.2For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 TABLE 1 Chemical RequirementsElementComposition,%Grade AGrade BChromium34.038.038.042.0Carbon,max0.0600.050Silicon38.042.041.045.0Sulfur,max0.0300.030Phosphorus,max0.0300.030TABLE 2 Supplementary Chemical RequirementsComposition,max,percentElementFerrochrome-Silicon(Grades Aand B)Nitrogen0.050Manganese0.75Nickel0.50Vanadium0.50Copper0.050Molybdenum0.050Columbium0.050Tantalum0.050Cobalt0.10Aluminum0.50Titanium0.50Zirconium0.050Arsenic0.005Lead0.005Tin0.005Zinc0.005Boron0.005Antimony0.005Silver0.005Bismuth0.005A482/A482M 11(2016)2 SUMMARY OF CHANGESCommittee A01 has identified the location of sele