Nodularisers Suppliers

Magnesium is the principal element in FeSiMg alloys responsible for creating the necessary conditions for the graphite phase to grow from the liquid into the required spheroidal form. The level of magnesium can be selected from a range between 5% to 10%. Several choice factors include treatment method used, degree of acceptable reactivity and economy of addition rate.

Calcium is an element which retards the rate of reaction of magnesium with the liquid iron and thereby improves magnesium recovery and reduces the reaction violence. In excessive amounts, calcium can produce slag.

Rare-earth elements (Ce, La...) are required in order to counteract the deleterious effect of certain trace elements on the iron graphite shape, notably Pb, Sb, and Bi. The decision of whether to use a nodulariser containing rare earth elements is generally determined by the quality and consistency of the raw materials used as melt stock. An additional important benefit is the improvement in nodule count and reduction in fading effect. Where high purity charge materials are used, the presence of rare earth elements in the treatment alloy can be unnecessary and even detrimental (causing "chunky graphite" forms).

Ferro Silicon Magnesium alloy are available in variety of Mg % (6- 8% and 8-10%), & Size (5mm-15mm, 10mm-25mm, 5mm-25mm)