Alloy steels are defined by what characteristic?

Alloy steels are defined by what characteristic?

• A. have special properties resulting from the presence of metallic elements in larger amounts than are found in carbon steels
• B. are simply carbon steels with some trace elements
• C. are steel alloys with only non-metal additives
• D. cannot be heat treated

Answer: (B)

Alloy steels are defined by having substantial amounts of alloying elements added to steel to give it properties beyond what plain carbon steel offers. These elements—such as chromium, nickel, vanadium, molybdenum, and others—are included in amounts that significantly change strength, hardness, wear resistance, toughness, or corrosion resistance. In contrast, carbon steels derive most of their characteristics from carbon content, with other elements present only in small, incidental amounts. Because of the deliberate alloying, alloy steels can be engineered for specific performance, and many of them respond well to heat treatment to further tailor their properties.

Alloy steels are defined by having substantial amounts of alloying elements added to steel to give it properties beyond what plain carbon steel offers. These elements—such as chromium, nickel, vanadium, molybdenum, and others—are included in amounts that significantly change strength, hardness, wear resistance, toughness, or corrosion resistance. In contrast, carbon steels derive most of their characteristics from carbon content, with other elements present only in small, incidental amounts. Because of the deliberate alloying, alloy steels can be engineered for specific performance, and many of them respond well to heat treatment to further tailor their properties.