Nimonic® 90 Foil

Nimonic® 90 Foil is a thin, high-temperature nickel-chromium-cobalt alloy sheet engineered for places where ordinary steels oxidize, creep, or lose spring. The age-hardenable chemistry keeps strength and surface integrity in hot gas paths, while the alloy’s oxidation resistance helps foil parts survive repeated heat-up and cool-down. Designers in aerospace, power generation, and process heating use it for lightweight shims, flame shields, bellows and corrugated seals that must hold shape next to burners and exhaust streams. The material forms and spot-welds cleanly, allowing folded hems, stitched seams, and multi-layer laminates without excessive mass or thickness. It also serves as a clean barrier between hot hardware and sensors in instrumentation. Where composite or polymer films would soften, the foil retains resilience and spring for clips and fasteners, supporting quick assemblies. For research and production teams building compact, high-heat hardware, Nimonic 90 foil provides a practical path to durable thermal management and mechanical retention without moving to heavier plate or complex castings.