Presence of iron in Al-Si cast alloys is common problem mainly in secondary (recycled) aluminium alloys. Better understanding of iron

influence in this kind of alloys can lead to reduction of final castings cost. Presented article deals with examination of detrimental iron

effect in AlSi10MgMn cast alloy. Microstructural analysis and ultimate tensile strength testing were used to consider influence of iron to

microstructure and mechanical properties of selected alloy