1. sepiste ja stantsiste laminaarstruktuur, eelkõige söövitatud pinnas; 2. separaua struktuur, mille ferriitpõhimass sisaldab kiulist räbu; 3. valtsterase murdepinnas ilmnev peenteraline kiuline struktuur, 1. in forgings, a macrostructure revealed as laminations on an etched section or as a ropy appearance on a fracture surface; 2. in wrought iron, a microscopic structure consisting of elongated slag fibers embedded in a matrix of ferrite; 3. in rolled steel plate stock, a uniform, lamination-free fine-grained structure on a fractured surface