ASTM A99-2003(2014) Standard Specification for Ferromanganese《锰铁的标准规格》.pdf
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1、Designation: A99 03 (Reapproved 2014)Standard Specification forFerromanganese1This standard is issued under the fixed designation A99; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parenthes
2、es indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers ten grades of ferromanganese,designated as follows:Standard ferromanganese Grade AGrade BGrade CMedium-carbon ferromanganese Gra
3、des A,B,C, and DNitridedLow-carbon ferromanganese Grade AGrade B1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documen
4、ts2.1 ASTM Standards:2A1025/A1025M Specification for Ferroalloys and Other Al-loying Materials, General RequirementsE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3. General Conditions for Delivery3.1 Materials furnished to this specification shall conform tothe requirements of Spec
5、ification A1025/A1025M, includingany supplementary requirements that are indicated in thepurchase order. Failure to comply with the general require-ments of Specification A1025/A1025M constitutes nonconfor-mance with this specification. In case of conflict between therequirements of this specificati
6、on and Specification A1025/A1025M, this specification shall prevail.4. Chemical Composition4.1 The material shall conform to the requirements as tochemical composition specified in Table 1.4.2 The manufacturer shall furnish an analysis of eachshipment showing the percentage of each element specified
7、5. Size5.1 The various grades are available in sizes as listed inTable 2.5.2 The sizes and friability ratings listed in Table 2 aretypical as shipped from the manufacturers plant. These alloysexhibit varying degrees of friability; therefore, some attritionmay be expected in transit, storage, and han
8、dling. A codesystem has been developed. Therefore, for this purpose, anumber rating for each product type is shown in the lastcolumn of Table 2. Definitions applicable to these codenumbers are given in Specification A1025/A1025M.6. Keywords6.1 ferroalloy; ferromanganese1This specification is under t
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