This specification covers standards for silicomanganese of Grades A, B, and C. Materials shall conform to manganese, silicon, carbon, phosphorus, and sulfur contents, as well as supplemental requirements of arsenic, tin, lead, chromium, nickel, and molybdenum. The material shall also conform to standard sizes and tolerances.

1.1 This specification covers grades of silicomanganese.

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.