Ключевые слова:
Steels, Alloy steels, Internal combustion engines, Reciprocating engines, Engine valves, Classification systems, Designations, Instructions for use, Chemical composition, Mechanical testing, Tensile testing, Hardness, Hardness testing, Chemical analysis and testing, Martensitic steels, Austenitic steels, Mechanical properties of materials, Tensile strength, Elongation