1、Designation:A63608(Reapproved 2013)Standard Specification forNickel Oxide Sinter1This standard is issued under the fixed designation A636;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 parenthes
2、es indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers one grade of nickel oxidesinter,designated as 75 used for alloying in iron and steelmelting.2.Referenced Documents2.1 ASTM Standards
3、:2A1025 Specification for Ferroalloys and Other AlloyingMaterials,General Requirements3.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 or
4、der.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 Requirements4.1 The chemical requirem
5、ents are shown in Table 1.5.Sampling for Chemical Analysis5.1 The material shall be sampled in accordance withprocedures outlined below:5.1.1 The sample shall be taken by cutting across the entirestream at regular intervals during the time of movement of themass being sampled.The quantity to be take
6、n at each intervaland the number of such intervals shall be so proportioned thatthe total quantity taken shall amount to not less than 0.40%ofthe total material being sampled.5.2 Treatment of Sample:5.2.1 In the case of nickel oxide sinter 75,the samplerepresenting each shipment or lot shall be redu
7、ced in amountusing a riffle splitter or other suitable mechanical splitter to1000 g.This 1000-g sample shall be placed in an oven at 250F(121C)for12h to remove any traces of moisture,and thenpulverized to pass an 80-mesh screen using appropriate equip-ment to avoid sample contamination.Approximately
8、 250 g ofthis pulverized material shall be split out for copper and sulfurassays,using a riffle splitter or other suitable mechanicalsplitter.The unused portion of individual shipment(or lot)samples whose copper and sulphur assays are within specifi-cation shall be combined by weight into two,three,
9、or four lotcomposites.Approximately 250 g of the composited materialshall be split out,using a riffle splitter or other suitablemechanical splitter and analyzed for nickel.This nickel analy-sis shall apply to each shipment(or lot)comprising thecomposite.6.Keywords6.1 nickel;nickel oxide;sinter1This
10、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 April 1,2013.Published April 2013.Originallyapproved in 1970.Last previous edition approved in 2008 as
11、 A636-08.DOI:10.1520/A0636-08R13.2For 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.Copyright ASTM International,100
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15、ed a fair hearing you shouldmake your views known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted by ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Individual reprints(single or multiple copies)of this sta
16、ndard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail);or through the ASTM website(www.astm.org).Permission rights to photocopy the standard may also be secured from the ASTM website(www.astm.org/COPYRIGHT/).TABLE 1 Chemical RequirementsElementComposition,%Grade 75Nickel,min75.00Cobalt,max1.30Copper,max0.90Iron,max0.50Sulfur,max0.02A636 08(2013)2