1、Designation: A323 05 (Reapproved 2010)Standard Specification forFerroboron1This standard is issued under the fixed designation A323; 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
2、 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 ferroboron.1.2 The values stated in inch-pound units are to be regardedas the standard. The SI units given in pa
3、rentheses are forinformation only.2. Referenced Documents2.1 ASTM Standards:2A1025 Specification for Ferroalloys and Other AlloyingMaterials, General RequirementsE371 Test Method for The Determination of Boron inFerroboron33. General Conditions for Delivery3.1 Materials furnished to this specificati
4、on shall conform tothe requirements of SpecificationA1025, 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 req
5、uirements 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 Table 1. The manufac-turer shall furnish an analysis of each lot showing the percent-age o
6、f each element specified.5. Sizing5.1 Ferroboron is available in various sizes such as: 2 in.(50.8 mm) by down, 1 in. (25.4 mm) by down,14 in. (6.35 mm)by down, and 20 mesh (0.841 mm) by down. The size shall beas specified in the order.6. Chemical Analysis6.1 The chemical analysis of the material sh
7、all be made inaccordance with Test Method E371. Where a method is notgiven in Test Method E371 for the analysis for a particularelement, the analysis shall be made in accordance with aprocedure agreed upon by the manufacturer and purchaser.7. Keywords7.1 ferroboron1This specification is under the ju
8、risdiction 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 1949. Last previous edition approved in 2005 as A323 - 05. DOI:10.1520/A03
9、23-05R10.2For 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 ASTM website.3Withdrawn. The last approved version of this histor
10、ical standard is referencedon www.astm.org.TABLE 1 Chemical RequirementsComposition, %Grade BoronACarbon Silicon Aluminummin max max max maxA1 12.0 14.0 1.5 2.0 0.5A2 12.0 14.0 1.5 2.0 4.0B1 17.5 19.0 1.5 2.0 0.5B2 17.5 19.0 1.5 2.0 4.0C1 19.0 24.0 1.5 2.0 0.5C2 19.0 24.0 1.5 2.0 4.0ABoron shall be
11、reported to the nearest 0.1 %.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of
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15、9428-2959,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.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).A323 05 (2010)2
