Description
4140, 41L40, and 4140 annealed cold rolled bars are medium carbon alloy steels known for their high tensile strength, toughness, and excellent machinability. The cold rolling process enhances their dimensional accuracy, making them ideal for applications requiring precision, such as gears, shafts, axles, bolts, studs, crankshafts, oil field equipment, and various machine parts. The addition of lead in 41L40 bars further improves machinability for high-volume production runs.