Alloy Steel AISI 4330 Mod Vac Melt (AMS 6411/ AMS 6427)

4330V material is a high-strength low-alloy steel with excellent fatigue strength, toughness and corrosion resistance. Alloy 4330V is a NiCrMoV hardened and tempered high strength alloy steel for applications in the oil, gas and aerospace industries. Alloy 4330V is an high strength alloy that has exceptional low temperature impact properties.  

4330V materials usually need heat treatment to obtain excellent comprehensive properties. Common heat treatment methods include normalizing, quenching and tempering. Normalizing can improve the strength and hardness of the material, quenching can increase the toughness and corrosion resistance of the material, and tempering can adjust the hardness and toughness of the material. Parameters such as temperature, time and cooling rate during the heat treatment process need to be strictly controlled to ensure that the material has consistent performance.

Form & Specifications:

AMS 6411- Bar, Forging, Tubing

AMS 6427 - Bar, Forging, Tubing

Alloy 4340 MOD (Modified) is a high-strength, low-alloy steel known for its toughness and heat treatment capabilities. It is typically used in applications where high strength and toughness are required, along with good fatigue resistance. Here are some common applications of Alloy 4340 MOD

Aerospace and Aircraft Components: Alloy 4340 MOD is used in aerospace applications due to its high strength-to-weight ratio, toughness, and ability to withstand high stresses. It can be found in components such as landing gear, engine parts, gears, and structural elements of aircraft.

Oil and Gas Industry: In the oil and gas sector, Alloy 4340 MOD is used for components that require high strength, toughness, and resistance to fatigue and corrosion. It is used in downhole drilling tools, wellhead components, and shafts.

Automotive and Racing Industry: Alloy 4340 MOD is used in high-performance automotive applications where strength, durability, and fatigue resistance are critical. It can be found in crankshafts, connecting rods, gears, and other engine components.

Defense and Military Equipment: Due to its toughness and strength properties, Alloy 4340 MOD is used in the defense industry for applications such as armor plates, vehicle components, and military vehicle suspension systems.

Industrial Equipment: Alloy 4340 MOD is utilized in various industrial equipment and machinery where high strength and durability are required. It can be found in gears, shafts, fasteners, and other critical components.

Tooling and Die Making: In tool and die manufacturing, Alloy 4340 MOD is used for making dies, molds, and tooling that require high strength and toughness to withstand the stresses of forming and shaping operations.

Marine Applications: In marine environments, Alloy 4340 MOD is used for components such as shafts, propeller shafts, and other critical marine equipment that require high strength, toughness, and resistance to corrosion.

Overall, Alloy 4340 MOD is chosen for its excellent mechanical properties after heat treatment, including high tensile strength, good ductility, and impact resistance. Its versatility and performance characteristics make it suitable for a wide range of demanding applications across multiple industries.