1、Designation: A 99 03 (Reapproved 2009)Standard Specification forFerromanganese1This standard is issued under the fixed designationA99; 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:2A 1025 Specification for Ferroalloys and Other AlloyingMaterials, General RequirementsE11 Specification for Woven Wire Test Sieve Cloth andTest Sieves3. General Conditions for Delivery3.1 Materials furnished to this specification shall conform tothe requirements of Specificatio
5、n A 1025, including anysupplementary requirements that are indicated in the purchaseorder. Failure to comply with the general requirements ofSpecification A 1025 constitutes nonconformance with thisspecification. In case of conflict between the requirements ofthis specification and Specification A 1
6、025, this specificationshall 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 specified5. Size5.1 The various grades a
7、re 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 handling. A codesystem has been de
8、veloped. 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 A 1025.6. Keywords6.1 ferroalloy; ferromanganese1This specification is under the jurisdiction of ASTM Committee A01
9、 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved April 1, 2009. Published May 2009. Originallyapproved in 1925. Last previous edition approved in 2003 as A 99 03.2For referenced ASTM standards, visit the ASTM web
10、site, 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United Sta
11、tes.SUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall apply only when specified by the purchaser in thepurchase order or contract.S1. Chemical RequirementsThe composition shall be further limited to the requirementsof Table S1 in addition to those of Table 1. The manufacturers
12、hall furnish an analysis of each shipment showing the per-centage of the elements specified.TABLE 1 Chemical RequirementsStandard Ferromanganese Medium Carbon Ferromanganese NitridedMediumCarbonFerroman-ganeseLow Carbon Ferro-manganeseGrade A Grade B Grade C Grade A Grade B Grade C Grade D Grade A G
13、rade BManganese, % 78.0 to 76.0 to 74.0 to 80.0 to 80.0 to 80.0 to 80.0 to 75 to 80A85.0 to 80.0 to82.0 78.0 76.085.085.0 85.0 85.0 90.0 85.0Carbon, max, % 7.5 7.5 7.5 1.5 1.5 1.5 1.5 1.5AAs speci- 0.75fiedSilicon, max, % 1.2 1.2 1.2 1.5 1.0 0.70 0.35 1.5A2.0 5.0 to7.0Phosphorus,max, %0.35 0.35 0.35
14、 0.30 0.30 0.30 0.30 0.3 0.20 0.30Sulfur, max, % 0.050 0.050 0.050 0.020 0.020 0.020 0.020 0.020 0.020 0.020Nitrogen, % 4% minABased on metallic content.TABLE 2 Standard Sizes and TolerancesProduct Standard Sizes TolerancesAFriabilityRatingStandardferromanganeseGrades A, B, C8 3 4 in. (200 3 100 mm)
15、 90 lb (40.8-kg) lump, max 10 % max passing 4-in. (100-mm) sieve 45x2in.(1253 50 mm) 10 % max retained on 5-in. (125-mm) sieve 10 % max passing 2-in. (50-mm) sieve4 3 1 in. (100 3 25 mm) 10 % max retained on 4-in. (100-mm) sieve 10 % max passing 1-in. (25-mm) sieve2 314 in. (50 3 6.3 mm) 10 % max re
16、tained on 2-in. (50-mm) sieve 10 % max passing14-in. (6.3-mm) sieve38 in. 3 12 mesh (9.5 3 1.4 mm) 5 % max retained on38-in. (9.5-mm) sieve 5 % max passing No. 14 (1.4-mm) sieve14 in. 3 down (6.3 mm 3 down) 5 % max retained on14-in. (6.3-mm) sieve8 mesh 3 down (2.36 mm 3 down) 5 % max retained on No
17、 8 (2.36-mm) sieve20 mesh 3 down (0.85 mm 3 down) 5 % max retained on No. 20 (0.85 mm) sieveMedium-carbonferromanganeseGrades A, B, C, and D8 3 4 in. (200 3 100 mm) 90-lb (40.8-kg) lump, max 10 % max passing 4-in. (100-mm) sieve 4125 3 2 in. (125 3 50 mm) 10 % max retained on 5-in. (125-mm) sieve 1
18、0 % max passing 2-in. (50-mm) sieve4in.3 down (100 mm 3 down) 10 % max retained on 4-in. (100-mm) sieve 12 % max passing14-in. (6.3-mm) sieve2in.3 down (50 mm 3 down) 10 % max retained on 2-in. (50-mm) sieve 15 % max passing No. 8 (2.36-mm) sieve8 mesh 3 down (2.36 mm 3 down) 5 % max retained on No.
19、 8 (2.36-mm) sieveMedium-carbonferromanganeseNitrided gradeBriquetted only 4Low-carbonferromanganeseGrades A and B6 3 2 in. (150 3 50 mm) 10 % max retained on 6-in. (150-mm) sieve 10 % max passing 2-in. (50-mm) sieve 54 314 in. (100 3 6.3 mm) 10 % max retained on 4-in. (100-mm) sieve 5 % max passing
20、14-in. (6.3-mm) sieve8 mesh 3 down (2.36 mm 3 down) 5 % max retained on No. 8 (2.36-mm) sieve20 mesh 3 down (0.85 mm 3 down) 5 % max retained on No. 20 (0.85-mm) sieveASpecifications of sieve sizes used to define tolerances herein are as listed in Specification E11.TABLE S1 Supplemental Chemical Req
21、uirementsComposition, max, %StandardFerroman-ganese, AllGradesMedium-CarbonFerroman-ganese, AllGradesLow-Car-bon Ferro-manganese,All GradesArsenic 0.30 0.15 0.10Tin 0.020 0.010 0.010Lead 0.050 0.050 0.020Chromium 0.50 0.50 0.50Carbon 0.10 or 0.50 or 0.70 for Grade A onlyA 99 03 (2009)2ASTM Internati
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25、s, 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 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).A 99 03 (2009)3
