malm, mis on töödeldud sulaolekus magneesiumi ja tseeriumiga, mille tulemusena saadakse sferoidaalse või mügara kujuga grafiit; tuntud ka sitke malmina, kuna omab mõõdetaval määral ka sitkust (vt keragrafiit, mügargrafiit, grafiitmalm; vrd liblegrafiitmalm, kompaktgrafiitmalm, tempermalm), a cast iron that has been treated while molten with an element such as magnesium or cerium to induce the formation of free graphite as nodules or spherulites, which imparts a measurable degree of ductility (see: spheroidal graphite, nodular graphite, graphitic cast iron; compare: flake graphite cast iron, compacted graphite cast iron, malleable cast iron)