Mitis Casting

A process invented by P Ostberg for producing malleable iron castings by melting wrought iron to which from 005 to 01 per cent of aluminum is added to lower the melting point usually in a petroleum furnace keeping the molten metal at the bubbling point until it becomes quiet and then pouring the molten metal into a mold lined with a special mixture consisting essentially of molasses and ground burnt fire clay also a casting made by this process called also wrought iron casting