 | Inconel 718 is a widely utilized precipitation-hardenable nickel-chromium alloy featuring outstanding creep-rupture strength at continuous operating temperatures up to 700°C (1290°F). Thanks to its balanced mechanical properties and environmental resistance, this alloy is the preferred material for manufacturing precision spring products, including wave springs, retaining rings, compression springs and custom wire-form springs. As a professional Chinese nickel alloy supplier, ZYTC Alloy delivers high-performance custom Inconel 718 springs designed to withstand the harshest working conditions across aerospace, energy, marine and heavy industrial sectors. Compared with ordinary spring materials, Alloy 718 maintains stable mechanical performance under extreme temperature fluctuations, cyclic load and corrosive media, making it a reliable choice for mission-critical components where operational failure is unacceptable. |
Why Choose Inconel 718 Springs?ZYTC Alloy supplies high-performance Inconel 718 springs engineered specifically for the most challenging industrial applications. Compared to conventional alloy springs, the core advantages include: Stability Across Extreme Temperatures: Inconel 718 springs maintain their performance integrity across a broad temperature range, from cryogenic -200°C up to 650°C. After a full age-hardening heat treatment (soaking at 720°C for 8 hours, furnace cooling to 620°C, with a total aging time of 18 hours), the tensile strength reaches no less than 220 ksi (1515 MPa), ensuring ample load-bearing capacity under high-temperature, high-pressure conditions. Excellent Stress Relaxation Resistance: NASA research has demonstrated that Inconel 718 springs exhibit outstanding resistance to stress relaxation during prolonged exposure at 540°C (approximately 1000°F). Over test periods extending to 2000 hours, the average load loss rate is only 6%, significantly extending maintenance intervals and service life. Comprehensive Corrosion Resistance: With a composition of 50–55% nickel, 17–21% chromium, along with niobium (Nb) and molybdenum (Mo) strengthening elements, Inconel 718 effectively resists salt spray, hydrogen sulfide, and high-temperature oxidation. This makes it an ideal choice for marine engineering, sour gas and oil wells, and chemical processing equipment.
ZYTC Alloy's Technical Capabilities and Product SpecificationsAs a leading nickel-based alloy supplier in China, ZYTC Alloy provides materials that fully comply with international standards such as AMS 5662,AMS 5663, ASTM B637, and NACE MR0175. We possess complete manufacturing capabilities ranging from precision forming to specialized heat treatment. | Technical Parameter | Inconel 718 Spring Specifications |
|---|
| Wire Diameter Range | 0.05 mm to 50 mm | | Spring Types | Compression springs, wave springs, retaining rings, custom-shaped springs | | Typical Tensile Strength | ≥ 1515 MPa (220 ksi, aged condition) | | Modulus of Elasticity (E) | 200 GPa (at 20°C) | | Modulus of Rigidity (G) | 80 GPa (at 20°C) | | Density | 8.19 g/cm³ | | Maximum Continuous Service Temperature | 650°C |
|  |
Technical Parameters of Inconel 718| Technical Item | Parameter Data |
|---|
| Nominal Chemical Composition | Ni: 50.0 – 55.0%Cr: 17.0 – 21.0%Cb(Nb): 4.75 – 5.5%Mo: 2.8 – 3.3% | | Density | 0.296 lb./in³ (8.19 g/cm³) | | Modulus of Elasticity (20°C / 70°F) | 29.0 × 10³ ksi | | Modulus of Rigidity (20°C / 70°F) | 11.6 × 10³ ksi | | Coefficient of Thermal Expansion | 7.7 µin/in·°F (70°F ~ 600°F)13.9 µm/m·°C (20°C ~ 300°C) | | Electrical Resistivity | 47.5 µΩ·in (121 µΩ·cm) | | Thermal Conductivity | 79 Btu-in/ft²hr·°F (12.0 W/m-K) | | Minimum Production Size | 0.002 in (0.0500 mm) | | Continuous Maximum Operating Temperature | 650°C (1200°F) |
Industry ApplicationsZYTC Alloy's Inconel 718 springs are widely deployed across the following sectors: Aerospace & Defense: Jet engine components, fasteners, missile systems. Oil & Gas: Downhole tools, valves, wellhead equipment. Energy & Power Generation: Nuclear reactor components, gas turbine springs. Marine Engineering: Subsea equipment, corrosion-resistant pumps and valves.
Our technical team can provide customized spring designs and material heat treatment protocols tailored to your specific operating parameters—including load, temperature, and media—ensuring that your mission-critical applications perform reliably without compromise. Request Your QuotationIf you require high-strength, corrosion-resistant Inconel 718 springs for extreme operating environments, reach out to ZYTC Alloy now. We offer professional engineering support and efficient global delivery. 📧 daisy@zytcsteel.com
📲 WhatsApp: +86 17335753350 |
