Mn Metal Lumps 97% Mn 97.0% min C 0.020% max S 0.05% max P 0.05% max Si 0.15% max Fe: 1.20% max Size: 10-50 mm 90% min Mn Metal Lumps 95% Mn 95.0% min C 0.04% min Si 0.2% min Fe 2.5% min P 0.005% min S 0.05% max Ni 0.01% max Cu 0.005% max Al+Ca+Mg 0.3% max