- 4817 E. 355th St Willoughby, OH 44094
- Info@AmericanSpecialtyMetals.com
- 440-951-7600
Alloy Steel 4140ANN (Annealed) is a chromium-molybdenum alloy steel known for its exceptional toughness, good fatigue strength, and excellent wear resistance. This grade is annealed for improved machinability, making it ideal for a wide range of heat-treated applications across multiple industries, including aerospace, automotive, oil and gas, and tooling.
4140ANN offers a strong balance of mechanical properties that make it a top choice for demanding applications. Its annealed condition allows for:
Enhanced machinability while still maintaining high tensile strength
Uniform hardness and toughness, even after heat treatment
High fatigue and impact resistance, especially useful in rotating machinery
Excellent response to quenching and tempering
These characteristics make it suitable for components subjected to high stress or impact loads, such as gears, crankshafts, and heavy-duty shafts.
Automotive and Transportation
4140ANN is widely used in the automotive sector for axles, steering components, and drivetrain elements. Its ability to withstand impact and wear ensures longer service life under heavy loads.
Oil & Gas and Heavy Equipment
In the energy sector, this alloy is trusted for high-strength fasteners, downhole tools, and structural parts. It performs well in extreme environments thanks to its durability and resistance to stress corrosion cracking.
Tooling and Die Applications
Tool and die makers often rely on 4140ANN for form dies, draw dies, and die cast components. Its ability to be precision-machined and then heat-treated makes it a flexible material for die and mold construction.
At American Specialty Metal, we provide precision-cut 4140ANN alloy steel to meet your exact specifications. Whether you need round bars, flat bars, or custom-cut pieces for machining, we deliver materials that meet industry standards and exceed expectations.
440-951-7600
