AISI4140

Alloy 4140 is typically used in the Oil and Gas industry in applications such as gears, pumps and drills. 4140 from Castle metals is available in round bar and hollow bar, with custom heat treating, cutting, boring and honing available.

This strong alloy is used for its good hardness penetration and hardness uniformity. Its high machinability and ability to maintain its properties at high temperatures make this alloy useful in many industries.
AISI4140