4140 is a widely used medium carbon steel containing chromium and molybdenum, it commonly known as "chromoly". A general purpose alloy, offering the right combination of strength, toughness and hardness with good machinability.

Material: Steel
Shape: Round Rod
Alloy: 4140
Temper: Annealed
Diameter: 1.250 (1-1/4 inch)
Finish: Hot Rolled
Specifications: AMS-S-5626
Tolerances: Diameter: (+/-0.011) | Length: (-0/+0.875)