madalsüsinikteras nüüdiskõrgtugevate teraste perekonnast, mille tugevus tugineb peeneteralisel ferriit-beiniitsel maatriksil, milles muude faasidena sisalduvad samuti martensiit, perliit ja jääkausteniit (vt nüüdiskõrgtugev teras), a part of the advanced high-strength steels (AHSS) family which strength gain is achieved through extremely fine grain size and microstructure containing a small amounts of martensite, pearlite and retained austenite embedded in a ferrite-bainite matrix (see: advanced high-strength steel)