Made with more carbon and manganese than other easy-to-machine carbon steels, 1144 carbon steel has a higher yield strength and hardness. Also known as Stressproof, these rods are stress-relieved to minimize warping during machining.

Also known as Fatigueproof, these rods have enhanced strength and resistance to breaking from repeated impact compared to High-Strength Easy-to-Machine 1144 Carbon Steel Rods.

A hardened surface makes these hex bars more impact and abrasion resistant than untreated bars. They’re also stress relieved to reduce the chance of warping during machining.

Also known as Nitriding 135, this steel can be hardened at lower temperatures than other heat-treatable alloys.