Ключевые слова:
Metal sections, Rolling, Compositional tolerances, Channels (metal sections), Testing conditions, Sample location, Fine-grain material, Beams, Inspection, Bars (materials), Impact testing, Workability, Marking, Structural steels, Designations, Chemical composition, Mechanical testing, Weldability, Strips, Z-bars, Tensile testing, Surface texture, T-bars, Steels, Specimen preparation, Test specimens, Sheet materials, Angles (metal sections), Hot-working