Common Materials for Spring-Energized Seals

Advanced Materials for Demanding Environments

Handa stocks standard and specialty materials of all types. Below are some commonly requested materials used to manufacture spring energizer products. If your application requires alternate materials, contact us for custom quote information.

Material	Description	Key Strengths	Typical Applications
Elgiloy®	High-strength, corrosion-resistant cobalt-based alloy; strain-hardened	Excellent resistance to chloride, seawater, and sour gas (H₂S) Outstanding fatigue life Non-magnetic Exceptional elastic recovery	Medical devices, aerospace seals, energy, subsea and harsh chemical environments
Inconel® 718	Precipitation-hardened nickel alloy with superior strength and thermal stability	High mechanical strength up to ~700 °C Excellent cryogenic ductility down to −253 °C Creep and relaxation resistance under stress	Turbomachinery, aerospace seals, cryogenic and high-load sealing applications
Inconel® 625	Solid-solution strengthened alloy with excellent corrosion resistance	Exceptional resistance to acids, seawater, and chloride pitting Oxidation and creep resistance up to ~980 °C Non-magnetic, weldable	Chemical process equipment, offshore oil & gas, heat exchangers, dynamic seals
Hastelloy® C-276	Highly corrosion-resistant alloy, ideal for aggressive chemical environments	Excellent resistance to oxidizing and reducing acids Handles Cl₂, HCl, H₂SO₄, and wet chlorine Non-magnetic	Acid processing, chemical reactors, flue gas scrubbers, high-acid sealing systems
MP35N®	Ultra-high strength alloy; combines strain hardening and aging	Tensile strength >2000 MPa Outstanding fatigue and corrosion resistance Biocompatible & non-magnetic	Aerospace, deep-sea, high-pressure seals, medical implants
316L Stainless Steel	Austenitic stainless steel with excellent general corrosion resistance	Good resistance to chlorides and oxidation Weldable, low cost, food/medical grade Non-magnetic in annealed state	Food-grade seals, water treatment, general-purpose spring applications
17-7PH Stainless Steel	Precipitation-hardened stainless steel with moderate corrosion resistance	Reasonable strength after aging treatment Cost-effective Limited fatigue resistance	Pumps, industrial valves, standard dynamic seal springs

Each material is selected based on your application’s pressure, media, temperature, and compliance requirements.