Bisnoc™ is a medium potency inoculant specifically for use in ductile iron production
where the nodularising agent contains rare earths. Bisnoc ™ may be used for thin to
medium section castings. The product is based on Elkem’s coated inoculant technology *.

Your Main Benefits

• Generates high nodule density
• Promotes ferrite
• Powerful chill reducer
• May be used on ductile irons produced with pure Mg methods that contain sufficient rare earths
• May be used on irons treated with MgFeSi when the nodulariser contains rare earths

Advantages of Bisnoc™

Pure magnesium nodularisation processes, such as converters and plunging, have a big negative effect on the inherent nucleation levels in cast iron and result in a “dead” iron which is often not responsive to conventional inoculants. The same can be said of the violent cored wire treatments and some MgFeSi alloys with very high magnesium. Regenerating active nuclei to promote graphite growth is essential and elements such as cerium and calcium can do this. However, the addition of bismuth to the inoculant has the additional effect of  promoting a very high nodule number (density). This results in increased ferrite content and a low tendency to the formation of iron  carbide.