Severe-Service Springs & Formed Components in Exotic Alloys
Elgiloy, Inconel, MP35N - engineered for heat, corrosion, pressure and fatigue cycling.
Engineered Spring Products (ESP) is a specialty spring manufacturer focused exclusively on severe service springs and formed components in exotic alloys. For over 40 years, we’ve supported engineers designing critical equipment for extreme environments — where heat, corrosion, high pressure, and cyclic fatigue can quickly cause failure.
We manufacture high-performance springs in Elgiloy®, Inconel®, MP35N®, and other corrosion- and temperature-resistant alloys, helping customers solve complex reliability challenges in LNG, hydrogen, petrochemical, subsea, power generation, and compression applications.
From early-stage design consultation through full-scale production, ESP engineers are directly involved at every step — reviewing drawings, validating material selection, optimizing manufacturability, and tightly controlling the production process. Our combined expertise in metallurgy, mechanical behavior, forming processes, and application performance ensures your components are built for durability, repeatability, and long service life.
At ESP, we don’t just produce parts — we help reduce engineering risk.
Engineering-First Collaboration
At ESP, we are more than a spring manufacturer — we are a technical partner to your engineering team.
Our engineers collaborate directly with yours from concept through production, ensuring material selection, stress considerations, corrosion resistance, and fatigue performance are aligned with real-world operating conditions before a part ever enters production.
Because we understand:
High-temperature creep and oxidation
Hydrogen embrittlement risks
Corrosion mechanisms in sour gas and subsea environments
High-cycle fatigue in compression equipment
We help identify potential failure modes early — improving reliability, protecting critical equipment, and lowering total lifecycle cost.
Whether you’re refining a legacy design or launching a new severe-service application, we ensure your component is:
Optimized for extreme operating conditions
Manufactured to tight tolerances
Designed for repeatability and long-term durability
Produced economically without compromising performance
Severe-Service Expertise That Reduces Risk
Severe-service applications demand more than conventional spring manufacturing. They require deep technical knowledge, disciplined process control, and expertise in high-performance alloys.
ESP specializes in:
Exotic alloy springs for extreme environments
Cobalt, nickel, and chromium-based materials
Precision-formed components for critical equipment
Applications exposed to heat, corrosion, pressure, and fatigue cycling
Our engineering team oversees the entire manufacturing process — from raw material sourcing and certification through forming, heat treatment, finishing, and final inspection — ensuring your springs meet or exceed specification.
We take the time to understand your application, operating environment, and performance requirements so we can deliver engineered solutions — not commodity parts.
Proven Engineering Support
Severe-service applications demand more than conventional spring manufacturing. ESP brings deep technical expertise and hands-on experience with high-performance alloys to help your team solve tough engineering challenges. From diagnosing field issues to recommending design or material improvements, we partner with you to optimize performance, reduce downtime, and extend the life of critical components.
Our collaborative approach has helped customers:
Prevent costly downtime
Improve safety margins in critical systems
Mitigate corrosion and fatigue-related failures
Extend component life in aggressive environments
Severe-service performance isn’t accidental — it’s engineered.
Products
ESP produces a variety of springs, washers, bow and leaf springs, and other springs and assemblies. We also work with specialty materials, making us a leader in elgiloy springs, MW35N springs, and springs for severe service.
For more information on the products we offer, view our product line card.
- Compression Springs
- Torsion Springs
- Extension Springs
- Belleville Springs and Washers
- Flat, Bow, & Drag Springs
- Garter Springs (continuous length, cut to length, and tapered end)
- Bolts (including MP35N & other specialty materials)
- Tubing Fabrication
- Custom Assemblies
Capabilities
Engineered Spring Products has a wide variety of coiling, machining, and forming capabilities. Some of the more commonly requested processes for our custom spring products are listed here. If you require manufacturing services not listed here, contact us for a custom quote.
- Cold Coiling (.008" - 1.5" wire diameter)
- CNC Milling and Machining
- Forming
- Light Fabrication of Assemblies
- Tool and Die
- Tensile Testing
- Shot Peening, NDT, & Other Finishes Available
- Tubing Fabrication
Quality & Compliance
Quality Engineering
ESP's quality levels set industry standards. ESP is fully documented and certified to be in compliance with ISO 9001. Our quality assurance and reliability procedures include:
Engineering reviews all incoming drawings
Automated shop floor control
Real-time order tracking
Incoming materials inspected, tested, and documented
Computer-controlled spring testers
Internal control and documentation of all manufacturing processes
Finishing inspection, hardness testing, passivating, tensile testing, and documentation
Need engineering support? Contact us to connect with an engineering expert.
Materials
Engineered Spring Products has a large stock of exotic materials that normally must be specially ordered for other manufacturing companies. Some of these materials include:
- Inconel 600, 625, X750, and 718
- Elgiloy (Nickel Cobalt Alloy)
- MP35N (Nickel Cobalt Alloy)
- Titanium - Beta C and 6-4
- Hastelloy C276
- A 286
- Large-Diameter Alloy Steel
- Stainless Steel (302, 316, and 17-7)
- Music Wire
- Chrome Silicon
- Brass
- Beryllium Copper
Request a Quote
Our springs are custom-made to your specs. Request a quote for the parts you need today. Quotes turnaround in 24-hours or less.