Standard Active Last Updated: Nov 05, 2019 Track Document
ASTM A99-03(2019)

Standard Specification for Ferromanganese

Standard Specification for Ferromanganese A0099-03R19 ASTM|A0099-03R19|en-US Standard Specification for Ferromanganese Standard new BOS Vol. 01.02 Committee A01
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This specification covers standards for ferromanganese (Grades A, B, and C), medium-carbon ferromanganese (Grades A, B, C, D, and nitrided) and low-carbon ferromanganese (Grades A and B). The ferroalloys shall conform to manganese, carbon, silicon, phosphorus, sulfur, and nitrogen contents specific to different material grades. Materials shall also adhere to content limits of arsenic, tin, lead and chromium. The material shall be available in standard sizes, tolerances, and friability ratings.


1.1 This specification covers ten grades of ferromanganese, designated as follows:

Standard ferromanganese

Grade A


Grade B


Grade C

Medium-carbon ferromanganese

Grades A, B, C, and D



Low-carbon ferromanganese

Grade A


Grade B

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Book of Standards Volume: 01.02
Developed by Subcommittee: A01.18
Pages: 3
DOI: 10.1520/A0099-03R19
ICS Code: 77.100