In the world of precision manufacturing, not all metals are created equal. For high-stress, high-temperature, and corrosive environments, cobalt and nickel alloys can be the materials of choice. At Custom Precision Technologies (CPT), we frequently work with these advanced alloys to meet the rigorous demands of industries like aerospace, defense, and marine.
This article explores:
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What cobalt and nickel alloys are
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Their key properties and applications
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How CPT supports fabrication and processing
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Why they matter for your next project
What Are Cobalt and Nickel Alloys?
Cobalt Alloys
Cobalt-based alloys are engineered for exceptional wear resistance, high-temperature strength, and corrosion resistance. The most well-known family of cobalt alloys is Stellite®, which includes various compositions for specific performance needs.
Common Cobalt Alloys Include:
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Stellite 6: Excellent wear and corrosion resistance
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L-605 (Alloy 25): High-strength aerospace alloy
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F-90: Used in orthopedic implants
Nickel Alloys
Nickel alloys are renowned for their heat resistance, oxidation resistance, and mechanical strength, especially under extreme conditions. These alloys are often used in jet engines, turbines, and chemical processing.
Popular Nickel Alloys:
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Inconel® (Alloys 625, 718): High-temperature strength and corrosion resistance
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Monel® (Alloy 400): Excellent seawater resistance
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Hastelloy® (C-276, C-22): Superior chemical resistance
Key Properties That Make These Alloys Stand Out
| Property | Cobalt Alloys | Nickel Alloys |
|---|---|---|
| High-Temperature Strength | ★★★★★ | ★★★★★ |
| Corrosion Resistance | ★★★★☆ | ★★★★★ |
| Wear Resistance | ★★★★★ | ★★★★☆ |
| Biocompatibility | ★★★★★ | ★★★☆☆ |
| Machinability | ★★★☆☆ | ★★☆☆☆ |
Common Applications by Industry
Aerospace
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Nickel Alloys: Turbine blades, engine components, fasteners
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Cobalt Alloys: High-wear components in engines and fuel systems
Marine
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Nickel Alloys: Pumps, valves, and exhaust systems for saltwater environments
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Cobalt Alloys: Wear-resistant bushings and impellers
Defense
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Both: Armor components, heat shields, jet propulsion systems
How CPT Supports These Materials
At CPT, we are equipped to handle these materials through:
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Waterjet Cutting: Effective for harder metals without introducing heat distortion
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Laser Cutting: Precision tolerances for thin-gauge sheets (nickel alloys especially)
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Welding & Forming: Certified techniques to maintain structural integrity in exotic alloys
Contact CPT for Your Alloy Project
Need a quote for a nickel alloy bracket, a cobalt bushing, or marine-grade exhaust flange? CPT is ready to help.
CPT works with both Hastelloy and Inconel. Contact us today at 954-975-5518 or visit our website to learn more.