Custom Slit Incoloy 800 Precision Foil (0.05-0.8mm) for Thermal Shields

In demanding thermal management environments, material integrity under sustained cyclic heating is paramount. Our Custom Slit Incoloy 800 Precision Foil is manufactured through advanced vacuum melting, precision multi-roll cold reduction, and state-of-the-art continuous bright annealing.

The austenitic nickel-iron-chromium matrix is metallurgically balanced to maintain stable mechanical properties and high ductility under prolonged thermal exposure up to 1100°C (2012°F). Unlike standard commercial grade foils, our precision slitting line ensures uniform slit edges, zero camber, and minimal residual stress, making it the ideal raw material for multi-layer insulation (MLI) blankets, corrugated thermal baffles, encapsulated exhaust heat shields, and diffusion barrier membranes.

Our manufacturing process ensures that each master coil of Custom Slit Incoloy 800 Precision Foil exhibits superior physical, thermal, and mechanical consistency across both longitudinal and transverse directions.

• Protective Oxide Layer Formation: High chromium content promotes the rapid growth of a dense, adherent chromia (Cr2O3) scale that self-heals under thermal cycling, preventing surface spalling and embrittlement.
• Neutral Gas & Carburizing Stability: Resists carbon penetration and internal oxidation in dirty exhaust gases and industrial furnace atmospheres.

• Uniform Grain Size Refinement: Tight control over final annealing cycle produces a homogenous austenitic grain structure, eliminating orange-peel effects during deep drawing, stamping, and micro-corrugation.
• Burr-Free Slitting Quality: Custom slit edges reduce tooling wear during high-speed stamping and eliminate micro-crack propagation points during severe bending.

• Reflective Surface Integrity: Bright annealed surface finish reflects high-temperature radiant heat, enhancing the thermal barrier efficiency of multi-layer insulation blankets.
• Minimal Thermal Expansion Distortion: Stable coefficient of thermal expansion prevents buckling, warping, or delamination when welded to adjacent structural assemblies.

The unique thermal and mechanical balance of Custom Slit Incoloy 800 Precision Foil solves critical heat shielding challenges across high-reliability industries:

• Exhaust Manifold & Turbocharger Shields: Formed into embossed, multi-layer outer skins and inner heat reflectors to isolate 900°C+ radiant heat from sensitive electronics and wiring harnesses.
• Catalytic Converter Enclosures: Provides long-term fatigue resistance against road vibrations and severe exhaust thermal shocks.

• Aero-Engine Nacelle Insulation Blankets: Serves as the high-temperature metallic cladding encapsulating ceramic fiber insulation in thrust reversers and pylon structures.
• Auxiliary Power Unit (APU) Firewalls: Thin, lightweight barrier foils providing fireproof containment and thermal reflection.

• Furnace Insulation & Baffle Seals: Slit strips utilized for expansion joint seals, heating element radiation shields, and high-temperature conveyor linings.
• Nuclear & Power Plant Insulation Modules: Radiation reflection foil in steam generator insulation packages where structural stability and corrosion resistance are mandatory.

• 1,200 Tons Monthly Capacity: Scalable manufacturing infrastructure ensuring guaranteed supply chain continuity for global OEMs and volume tiered programs.
• Ultra-Narrow Slitting Expertise: In-house high-precision slitting capabilities offering widths down to 5.0mm with tight camber tolerances and custom spool/coil packing.
• Full Batch Traceability: 100% material traceability from primary raw element batching, vacuum induction melting, to multi-stage cold rolling and final slitting inspection.
• Dedicated Engineering Support: Tailored temper customization, custom coil OD/ID dimensions, and application-specific edge preparation to optimize your automated stamping lines.

Answer: While standard austenitic stainless steels undergo accelerated oxidation, scale spalling, and sigma-phase embrittlement above 750°C, Custom Slit Incoloy 800 Precision Foil maintains exceptional metallurgical stability and continuous protective scale integrity up to 1100°C. Its nickel-iron-chromium composition ensures higher creep-rupture strength, reduced thermal fatigue cracking under cyclic loading, and superior resistance to carburizing exhaust atmospheres.

Answer: We supply precision foil thicknesses ranging from 0.05 mm to 0.80 mm with tight gauge tolerances down to ±0.002 mm. Slit widths are available from 5.0 mm up to 650 mm. Custom width tolerances can be held to ±0.05 mm, with custom edge conditioning (slit, deburred, or rounded) engineered to eliminate micro-burrs and prevent tool jamming during automated stamping.

Answer: To protect ultra-thin precision coils, every slit coil is interleaved with protective phase paper or film, secured with circumferential strapping, individually sealed in moisture-proof barrier packaging with desiccants, and cushioned in custom-engineered export wooden crates or heavy-duty steel spools.

Answer: Yes. Through programmable continuous vacuum bright annealing, we precisely regulate grain size and yield strength to deliver fully soft annealed material with elongation exceeding 30%. This guarantees defect-free deep drawing, intricate micro-embossing, and multi-ply crimping without intermediate stress-relief annealing.