Product Specification Fesi80 Fesi75 Fesi72 DeSi65 ProductSpecificationFesi75Si:75% Min, Al:2.0%Max, C:0.2%Max, S:0.02% ... Max, P:0.04% Max, Fesi75Si:75% Min, Al:1.5% Max, C:0.2% Max, S:0.02% Max ... , P:0.04% Max, Fesi72Si:72% Min, Al:2.0% Max, C:0.2% Max, S:0.02 ... % Max, P:0.04% Max, Fesi65Si:65% Min, Al:2.0% Max, C:0.2% Max S:0.02 ...