High-Temperature Resistant Springs
Specialty superalloy springs engineered for continuous performance in severe thermal environments from -200°C to +800°C.
High-Temperature Spring Engineering Overview
Elevated operating temperatures degrade conventional spring steels rapidly: tensile strength drops, the shear modulus decreases, and materials suffer severe stress relaxation, thermal creep, and accelerated surface oxidation. Conversely, cryogenic operating environments risk low-temperature embrittlement and catastrophic brittle failure. TOSTA develops engineered high-temperature spring series utilizing aerospace-grade nickel, cobalt, and titanium superalloys, ensuring stable load retention, dimensional stability, and fatigue endurance across continuous operating ranges from -200°C to +800°C.
High-Temperature Alloy Material Solutions
Nimonic 90 (UNS N07090)
Cobalt-strengthened precipitation-hardenable nickel-chromium superalloy delivering exceptional creep resistance, stress rupture strength, and structural integrity under extreme heat.
Inconel X-750 (UNS N07750)
Precipitation-hardened nickel-chromium alloy offering outstanding oxidation and relaxation resistance in high-temperature gas turbine exhaust valves and pressure vessels.
Inconel 718 / GH4169 (UNS N07718)
Niobium-modified nickel superalloy with superior yield and tensile strength after precipitation aging; excellent fatigue and weldability in turbomachinery and rocket engines.
Nichrome (NiCr 80/20)
High-resistivity nickel-chromium alloy with excellent surface oxidation stability and non-magnetic characteristics in industrial furnace fixtures and heating elements.
Titanium Alloy (Ti-3Al-2.5V / Grade 5)
High strength-to-weight ratio, complete non-magnetic performance, and exceptional corrosion resistance for high-efficiency aerospace and marine thermal systems.
High-Temp Spring Steel (60Si2MnA / 51CrV4)
Cost-effective alloy spring steel with balanced mechanical resilience for medium-temperature automotive powertrains and industrial tooling.
Austenitic Stainless Steel (AISI 302 / 316)
Standard corrosion-resistant spring alloy suitable for mild thermal environments requiring chemical passivity and hygienic compliance.
Typical Application Scenarios
Require Custom High-Temperature Springs?
Please provide your peak operating temperature, working stroke, required load, and installation envelope. Our materials specialists will configure the optimal superalloy and precipitation hardening schedule.