1、Designation: A482 05 (Reapproved 2010)Standard Specification forFerrochrome-Silicon1This standard is issued under the fixed designation A482; 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 pa
2、rentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers several grades of ferrochrome-silicon.2. Referenced Documents2.1 ASTM Standards:2A1025 Specification for Ferroalloys and
3、Other AlloyingMaterials, General RequirementsE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE364 Test Methods for Chemical Analysis of Ferrochrome-Silicon33. General Conditions for Delivery3.1 Materials furnished to this specification shall conform tothe requirements of Specificatio
4、nA1025, 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
5、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
6、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
7、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
8、of ferroalloys. A code system1This 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, 2010. Published May 2010. Originallyapproved in 1963. Last
9、 previous edition approved in 2005 as A482 05. DOI:10.1520/A0482-05R10.2For 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 AST
10、M website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.TABLE 1 Chemical RequirementsElementComposition, %Grade A Grade BChromium 34.038.0 38.042.0Carbon, max 0.060 0.050Silicon 38.042.0 41.045.0Sulfur, max 0.030 0.030Phosphorus, max 0.030 0.030TABLE
11、2 Supplementary Chemical RequirementsComposition, max, percentElement Ferrochrome-Silicon (Grades Aand B)Nitrogen 0.050Manganese 0.75Nickel 0.50Vanadium 0.50Copper 0.050Molybdenum 0.050Columbium 0.050Tantalum 0.050Cobalt 0.10Aluminum 0.50Titanium 0.50Zirconium 0.050Arsenic 0.005Lead 0.005Tin 0.005Zi
12、nc 0.005Boron 0.005Antimony 0.005Silver 0.005Bismuth 0.0051Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.has been developed, therefore, for this purpose, and a numberrating each product type is shown in the last column of Table3. De
13、finitions 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 supplie
14、r, 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 pro
15、cedure agreed upon between themanufacturer and the purchaser.7. Keywords7.1 ferrochrome; ferrochrome siliconASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised t
16、hat determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapp
17、roved 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 careful consideration at a meeting of theresponsible technical committee, which you may attend. If you
18、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, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual r
19、eprints (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.astm.org). Permission rights to photocopy the standard may also be secured from the
20、 ASTM website (www.astm.org/COPYRIGHT/).TABLE 3 Standard Sizes and TolerancesProduct Standard Sizes TolerancesAFerrochrome-Silicon 75 lb by down75 lb by 1 in. (25.4 mm)90 lb lump, max90 lb lump, max 10% max, passing 1-in. (25.0-mm) sieve75 lb by 2 in. (50.8 mm) 90 lb lump, max 10% max, passing 2-in.
21、 (50-mm) sieve40 lb by down25 lb by down4 in. (101.6 mm) by down50 lb lump, max30 lb lump, max10% max, retained on 4-in. (100-mm) sieve3 in. (76.2 mm) by down 10% max, retained on 3 in. (75-mm) sieve3by12 in. (76.2 by 12.7 mm) 10% max, retained on 3-in. (75-mm) sieve 10% max, passing12 in. (12.5 mm)
22、 sieve2 in. (50.8 mm) by down 10% max, retained on 2-in. (50-mm) sieve2by14 in. (50.8 by 6.35 mm) 10% max, retained on 2-in. (50-mm) sieve 10% max, passing14 in. (6.3-mm) sieve34 in. (19.05 mm) by down 10% max, retained on34 in. (19.0-mm) sieveASpecifications of sieve sizes used to define tolerances herein are as listed in Specification E11.A482 05 (2010)2
