Incomag Alloy 1 is a nickel alloy containing 14 to 16 percent magnesium and about 1 percent carbon. It was developed by Inco for the foundry industry as an additive for the production of ductile iron. It enables magnesium to be introduced safely and efficiently into the molten iron bath to yield ductile iron with predictable and exceptional properties. This foundry additive alloy has been used in the commercial production of ductile iron since its introduction more than fifty years ago.

The high solubility of magnesium in nickel, the absence of segregation, and the relatively slow release of magnesium into the iron bath makes important constituent of ceramics and related Incomag Alloy 1 a safe, efficient and economical additive for all types of base irons and with all methods of addition. Magnesium recoveries are more consistent and complete than with the nickel-free magnesium additives. The reaction is calm and controlled with Incomag Alloy 1.

The small amount of nickel introduced by Incomag Alloy 1 functions as a graphitizer and pearlite stabilizer. Nickel thus enhances the tensile strength, yield strength and other mechanical properties. The use of Incomag Alloy 1 in the production of ductile iron has been shown to minimize variations between light and heavy sections of castings. This alloy is also eminently suited for the production of austenitic and bainitic types of ductile iron.

Effective Date: 2/1/04