4140 steel
4140 steel, also known as "chrome-moly" or "chromoly steel," is a versatile alloy that combines chromium, molybdenum, and carbon to achieve remarkable strength and toughness. This steel alloy is renowned for its excellent impact resistance and moderate wear resistance. The composition of 4140 steel typically consists of approximately 0.40% carbon, 1% chromium, and 0.25% molybdenum, with additional iron and other elements. These components contribute to 4140 steel's outstanding mechanical properties, making it ideal for various applications.