1、Designation: A 99 03Standard Specification forFerromanganese1This standard is issued under the fixed designation A 99; 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 parentheses indicates the
2、 year of last reapproval. A superscriptepsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense. This specification replaces Federal SpecificationQQ-F-145.1. Scope1.1 This specification covers ten
3、 grades of ferromanganese,designated as follows:Standard ferromanganese Grade AGrade BGrade CMedium-carbon ferromanganese Grades A,B,C, and DNitridedLow-carbon ferromanganese Grade AGrade B1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses ar
4、e forinformation only.2. Referenced Documents2.1 ASTM Standards:A 1025 Specification for Ferroalloys, General Require-ments2E 11 Specification for Wire Cloth and Sieves for TestingPurposes3E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3E 32 Practi
5、ces for Sampling Ferroalloys and Steel Additivesfor Determination of Chemical Composition43. General Conditions for Delivery3.1 Materials furnished to this specification shall conform tothe requirements of Specification A 1025, including anysupplementary requirements that are indicated in the purcha
6、seorder. 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 1025, this specificationshall prevail.4. Chemical Composition4.1 The material shall
7、 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 are available in sizes as listed inTable 2.5.2 The sizes and friability ratings lis
8、ted 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 developed. Therefore, for this purpose, anumber rating for each product type is show
9、n 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 on Steel,Stainless Steel, and Related Alloys and is the direct responsibility of
10、SubcommitteeA01.18 on Castings.Current edition approved Sept. 10, 2003. Published October 2003. Originallyapproved in 1925. Last previous edition approved in 2000 as A 99 82 (2000).2Annual Book of ASTM Standards, Vol 01.02.3Annual Book of ASTM Standards, Vol 14.02.4Annual Book of ASTM Standards, Vol
11、 03.05.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.SUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall apply only when specified by the purchaser in thepurchase order or contract.S1. Chemical RequirementsThe
12、composition shall be further limited to the requirementsof Table S1 in addition to those of Table 1. The manufacturershall furnish an analysis of each shipment showing the per-centage of the elements specified.TABLE 1 Chemical RequirementsStandard Ferromanganese Medium Carbon Ferromanganese Nitrided
13、MediumCarbonFerroman-ganeseLow Carbon Ferro-manganeseGrade A Grade B Grade C Grade A Grade B Grade C Grade D Grade A Grade 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.
14、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 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 To
15、lerancesProduct Standard Sizes TolerancesAFriabilityRatingStandardferromanganeseGrades A, B, C8 3 4 in. (200 3 100 mm) 90 lb (40.8-kg) lump, max 10 % max passing 4-in. (100-mm) sieve 45 x 2 in. (125 3 50 mm) 10 % max retained on 5-in. (125-mm) sieve 10 % max passing 2-in. (50-mm) sieve4 3 1 in. (100
16、 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 retained 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) sieve
17、14 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. 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
18、-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 10 % max passing 2-in. (50-mm) sieve4 in. 3 down (100 mm 3 down) 10 % max retained on 4-in. (100-mm) sieve 12 % max passing14-in. (6.3-mm) sieve2 in. 3 down (50 mm 3 down) 10 % m
19、ax 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. 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)
20、 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 passing14-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) sieveASpeci
21、fications of sieve sizes used to define tolerances herein are as listed in Specification E 11.TABLE S1 Supplemental Chemical RequirementsComposition, max, %StandardFerroman-ganese, AllGradesMedium-CarbonFerroman-ganese, AllGradesLow-Car-bon Ferro-manganese,All GradesArsenic 0.30 0.15 0.10Tin 0.020 0
22、.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 onlyA99032ASTM 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 that
23、 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 reapprov
24、ed 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 fee
25、l 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 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).A99033
