FERRO SILICO MANGANESE: SPECIFICATIONS Mn: 60% Min Si: 14% Min C: 2.5%Max (we prefer 2% Max) P: 0.30% Max S: 0.03% Max Size: 10 - 50 mm (90% Min) Fine: Less than 1% Packing: Export Standard - In 50 KG bags Gunny Bags & 1MT Jumbo bag for the equivalent quantity to be sent With each consignment.