4140 Steel Castings

Applications demanding exceptional toughness, wear resistance, and strength under high stress make 4140 steel castings a trusted choice. As a versatile low-alloy steel, 4140 delivers a unique balance of hardness and ductility, making it a top-performing material for industries where reliability and performance are required.

Request a quote for direct pricing information on our precision 4140 carbon steel casting options or explore our steel castings photo gallery to view images of our most recent work.

4140 Steel Casting Advantages

Compared to other steel grades, 4140 stands out because it can be engineered to perform under extreme operating conditions without premature wear or failure. Its combination of toughness and adaptability makes it a cost-effective alternative to higher alloy steels, while still providing premium performance. Benefits include:

High tensile strength
Superior strength-to-weight ratio
Excellent impact resistance
Heat treatable
Outstanding toughness and fatigue strength
Good abrasion and wear resistance
Excellent dimensional stability

4140 Carbon Steel Casting Industrial Applications

Since investment casting produces near-net shape parts, combining it with 4140 steel allows manufacturers to create complex, durable components that would otherwise be expensive to machine from solid bar or plate. Typical industrial applications include:

Aerospace & Defense: landing gear components, brackets, couplings.
Automotive & Motorsports: gears, crankshafts, connecting rods, drive shafts.
Oil & gas / Energy: drilling tools, valves, pipeline fittings.
Industrial Machinery: shafts, spindles, machine tool parts, hydraulic components.

Additional Carbon Steel Casting Options

Aero Metals also produces precision castings in other popular carbon and low-alloy steels engineered for strength, toughness, and versatility. Common options include:

4130 Steel: Offers excellent structural integrity and weldability
4340 Steel: Known for excellent toughness and fatigue resistance
8620 Steel: Combines toughness, core strength, and surface hardness for superior durability

Other Popular Investment Cast Alloys we Offer

In addition to carbon steel, Aero Metals casts a wide range of specialty alloys to meet diverse performance requirements, including:

Why Choose Aero Metals for Your 4140 Carbon Steel Casting Needs?

Aero Metals has over 60 years of experience producing high-quality and high-volume investment castings. When you partner with us, you can take advantage of our many services and benefits:

In-house tooling, engineering, and prototyping support
Exceptional quality control and inspection standards
CNC machining for secondary operations
Experience with high-complexity and precision-critical parts
Reliable turnaround and competitive pricing
One-stop shop for design to finished casting

Discover Aero Metals 4140 Steel Castings Today

Aero Metals is proud to be your trusted source for premium 4140 steel castings. Contact us for more information, or request a quote today!

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