4340 steel is suitable for making gears, especially heavy-duty gears that require high strength and toughness.
After quenching and tempering, 4340 steel exhibits uniform overall properties and excellent core strength and toughness, enabling it to withstand high loads, impact loads, and fatigue stresses, perfectly matching the core performance requirements of gears.
Furthermore, surface hardening processes can be combined to address the insufficient surface wear resistance of 4340 steel, fully meeting the requirements for gear applications.
4340 steel is highly suitable for core gears in heavy machinery, wind power, and aerospace transmission systems, maintaining stable performance even at low temperatures.