4340 steel is an ultra-high strength steel classified a medium-carbon, low-alloy steel. 4340 steel has high strength, ductility, toughness, creep resistance, and fatigue resistance relative to …

AISI 4340 steel (UNS G43400) is an ultra-high strength medium carbon low alloy steel, which combines deep hardenability, high ductility, toughness and strength, and has high fatigue …

A: Although 4340 and 4140 are both low-alloy steels, 4340 generally has higher strength and better fracture toughness. 4340 is often preferred in applications requiring a higher strength …

Steel 4340 is a medium-carbon nickel-chromium-molybdenum steel alloy with excellent tensile strength, toughness, and fatigue resistance.

Mar 3, 2025 · 4340 steel contains higher amounts of nickel, chromium, and molybdenum, making it stronger and more ductile than 4140 steel. 4340 steel is ideal for high-stress, heavy-duty …

Jul 13, 2023 · 4340 is an American standard carbon steel that is sought after for its high-strength properties. 4340 steel is ferromagnetic which means its magnetic properties will depend on the …

AISI 4340 (E4340) alloy steel is a medium carbon, low alloy steel known for its toughness and strength. Machining is done typically in the annealed condition. 4340 steel properties offer …