Alloy steel is steel alloyed With Other elements in Amounts of Between 1 and 50% by weight to Improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. Low alloy steels are defined as having an alloy contents Between 1 and 4% and high alloy steels have 4 to 50% alloying contents. However, Most Commonly Refers to alloy steel low alloy steel.
These steels have Greater strength, hardness, hot hardness, wear resistance, hardenability, or toughness Compared to carbon steel. However, They May require heat treatment in order to Achieve Such properties. Common alloying elements are molybdenum, manganese, nickel, chromium, vanadium, silicon and boron