Silicon Manganese -Type 1

Manganese %	60-65
Silicon%	14%Min
Carbon%	2.0 Max
Phosphorus%	.35 Max
sulphur%	0.05 Max

Silicon Manganese -Type 2

Manganese%	65 – 70
Silicon %	15% Min
Carbon%	2.0 Max
Phosphorus%	.35Max
Sulphur%	0.05 Max

Silicon Manganese-Type 3

Manganese%	58 – 60
Silicon %	13-15%
Carbon%	2.5 Max
Phosphorus%	.35Max
Sulphur%	0.05 Max