ASTM A483-04

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A 483 – 04
Standard Specification for
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Silicomanganese
This standard is issued under the fixed designation A 483; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers grades of silicomanganese.
2. Referenced Documents
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2.1 ASTM Standards:
A 1025 Specification for Ferroalloys, General Requirements
E 11 Specification for Wire Cloth and Sieves for Testing Purposes
3. General Conditions for Delivery
3.1 Materials furnished to this specification shall conform to the requirements of Specification A 1025, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements of
Specification A 1025 constitutes nonconformance with this specification. In case of conflict between the requirements of this
specification and Specification A 1025, this specification shall prevail.
4. Chemical Composition
4.1 The various grades shall conform to the requirements as to chemical composition specified in Tables 1 and 2.
4.2 The manufacturer shall furnish an analysis of each shipment showing the percentage of each element specified in Table 1.
4.3 Upon request of the purchaser, the manufacturer shall furnish an analysis for the elements specified in Table 2 on a
cumulative basis over a period mutually agreed upon by the manufacturer and the purchaser.
5. Size
5.1 The various grades are available in sizes as listed in Table 3.
5.2 The sizes listed in Table 3 are typical as shipped from the manufacturer’s plant. These alloys exhibit varying degrees of
friability; therefore, some attrition may be expected in transit, storage, and handling.
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This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel, and RelatedAlloys and is the direct responsibility of SubcommitteeA01.18
on Castings.
Current edition approved Oct. 1, 2004. Published October 2004. Originally approved in 1963. Last previous edition approved in 2000 as A 483 - 64 (2000).
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For referencedASTM standards, visit theASTM website, www.astm.org,
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