Ключевые слова:
Steels, Unalloyed steels, Structural steels, Grades (quality), Designations, Steelmaking, Chemical composition, Strength of materials, Impact strength, Tensile strength, Yield strength, Weldability, Testing, Test specimens, Marking, Rolling, Sheet materials, Bars (materials), Metal sections, Strips, Sampling methods, Inspection, Testing conditions, Sample location, Hot-working, Elongation, Semi-finished products