1、Designation:A32408(Reapproved 2013)Standard Specification forFerrotitanium1This standard is issued under the fixed designation A324;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 ind
2、icates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers four grades of ferrotitanium,designated A,B,C,and D.2.Referenced Documents2.1 ASTM Standards:2A1025 Specification for Ferroalloys and Othe
3、r 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 order.Failure to comply with the general require
4、ments 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 requirements are shown in Tables 1 and 2.5.Size5.1 The
5、 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-abl
6、e for rating relative friability of ferroalloys.A code systemhas been developed,for this purpose,and a number rating eachproduct type is shown in the last column of Table 4.Definitionsapplicable to these code numbers are given in SpecificationA1025.6.Chemical Analysis6.1 The chemical analysis of the
7、 material shall be inaccordance with a procedure agreed upon between the manu-facturer and the purchaser.7.Keywords7.1 ferrotitanium1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 o
8、n Castings.Current edition approved April 1,2013.Published April 2013.Originallyapproved in 1949.Last previous edition approved in 2008 as A32408.DOI:10.1520/A0324-08R13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual B
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11、e responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your comments will receive car
12、eful consideration at a meeting of theresponsible technical committee,which you may attend.If you feel that your comments have not received 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,
13、100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Individual reprints(single or multiple copies)of this standard 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
14、.astm.org).Permission rights to photocopy the standard may also be secured from the ASTM website(www.astm.org/COPYRIGHT/).TABLE 1 Chemical RequirementsGradeComposition,%TitaniumCarbon,maxSilicon,maxAluminum,maxA65.075.00.150.250.50B65.075.00.200.255.0C35.045.00.155.08.0D15.025.05.05.08.0TABLE 2 Supp
15、lementary Chemical RequirementsGradeComposition,%AMnPSCrNiMoCuCoVPbAsBiSnZnZrBNA0.500.0500.0501.00.0500.0500.150.0300.500.0100.0100.0100.0500.0100.100.0100.15B1.50.0500.0501.00.0500.250.200.0501.50.0300.0100.0100.0500.0200.500.0200.20C1.50.100.0501.00.0500.250.200.0501.50.0300.0100.0100.0500.0200.50
16、0.0200.20D1.50.100.0501.00.0500.250.200.0501.50.0500.0100.0100.0500.0200.500.0200.20AMaximum limits.TABLE 3 Size Requirements(All Grades)CategoryTolerances2 in.(50 mm)by down10%,max retained on USA Standard 2 in.(50 mm)Sieve10%,max passing USA Standard No.20(850 m)Sieve1 in.(25 mm)by down10%,max retained on USA Standard 1 in.(25.0 mm)Sieve10%,max passing USA Standard No.20(850 m)Sieve12in.(12.5 mm)by down10%,max retained on USA Standard12in.(12.5 mm)Sieve15%,max passing USA Standard No.30(600 m)
