CHOOSING THE RIGHT 4140 STEEL BAR: IMPACT OF HEAT TREATMENT AND SURFACE TREATMENT
Introduction to 4140 Steel: Composition and Characteristics When selecting materials for high-stress applications, 4140 steel stands out for its balanced properties of strength, toughness, and wear resistance. This low-alloy steel, rich in chromium and molybdenum, has a carbon content typically between 0.38% and 0.43%, contributing to its durability and machinability.