Avoiding micro porosity defects in iron castings

In this case, a leading grey and ductile iron foundry experienced some defects. They specialise in producing automotive, agricultural, earthmoving and engineering castings for the global market. Previously they worked with a competitor’s inoculants and nodularisers. They experienced issues with machining their cast products. 

This defect did not only cause high production costs, but also, was a major risk to the foundry’s reputation with their customer.