Grain and Ground Carbon-Containing Materials
TУ 48-4802-7-87 Filter Powder
It is the powder collected after roasting and graphitizing furnaces which is used in antiscorning dressings in casting.
Out of graphitizing furnaces
Ash content, %, max.
Carbon content, %, min.
Granulometric content: remains on netting
No. 03, %, max.; remains on netting No. 016,