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
Nitrided
Low-carbon ferromanganese	Grade A
Grade B

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.