... is 90% min 2.1-4mm,Low sulfur,Low ash 3.High absorptivity in molten steel Casting and Steelmaking Calcined anthracite coal ... being used as the carbon additive of steel-smelting, and casting, the fixed carbon may achieve above 95%. Application: It may ... ,1-3mm,1-4mm,, 90%min,or at customer’s option;PackingIn 50kgs or 1MT big bag, or at customer’s option; Casting ...