1045 vs 4140 Steel: Strength, Properties and Differences
1045 vs 4140 steel is a common comparison when sourcing steel for shafts, gears and industrial machinery components. Both grades are used for mechanical parts, but 1045 is a medium carbon steel, while 4140 is a chromium-molybdenum alloy steel. Their main differences are chemical composition, strength, hardness and hardenability. The right choice depends on component […]