ASTM A99-03(2019)

Standard Specification for Ferromanganese

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