valtsitud süsinik- ja madallegeerteraste mikrostruktuuris kihiline jämedakoeline ferriidi ja tsementiidi segu (vrd teraperliit)
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Tööriistaterastes sellise olekus äärmiselt kõva ja raskesti töödeldav, eriti külmalt.
laminations of layers of ferrite and carbide (cementite) generally found in plain carbon and low alloy steels in the as-rolled (not heat treated) condition (compare: granular pearlite)
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In this condition, tool steel is generally fairly hard, and difficult to machine or to cold form.
