High-Performance Superalloy Sheet Nimonic 75 0.5-3.0mm for Aerospace Flame Tubes

Engineered for demanding thermal environments, our precision cold rolled Nimonic 75 superalloy sheet (thickness 0.5–3.0mm) delivers exceptional oxidation resistance up to 1000°C, high mechanical durability, and superior cold formability for aerospace combustion flame tubes, gas turbine casings, and industrial furnace ducting.

Nimonic 75 (Ni-Cr-Ti solid solution alloy) is engineered to maintain high structural integrity and creep-rupture resistance under continuous thermal cycles. Produced via advanced Vacuum Induction Melting (VIM) coupled with Electroslag Remelting (ESR), our superalloy sheet exhibits exceptional metallurgical cleanliness, uniform grain structure, and minimal non-metallic inclusions.

The addition of titanium, combined with a high chromium matrix (~20% Cr), forms a dense, self-healing chromium oxide passive layer that resists oxidation, carburization, and thermal degradation at sustained temperatures reaching 1000°C (1832°F). Through multi-pass precision cold rolling and protective-atmosphere bright annealing, our Nimonic 75 sheets offer superior surface finish, tight flatness tolerances, and optimal ductility for complex deep drawing, rolling, and automated welding operations in aerospace manufacturing.

• Thickness Range: 0.5 mm – 3.0 mm (Custom precision micro-tolerances within ±0.015 mm)
• Width Range: 100 mm – 1250 mm (Cut-to-length sheets or continuous cold rolled coils)
• Length Range: 500 mm – 4000 mm (Custom laser-cut sheet blanks available upon request)
• Surface Finish: 2B, Bright Annealed (BA), or Precision Polished / Ra ≤ 0.4 µm

• Superior High-Temperature Oxidation Resistance:
  Forms an adherent, protective chromium-rich oxide film that prevents scaling, hot-gas erosion, and internal oxidation in continuous thermal exposure up to 1000°C.

• Exceptional Cold Workability & Ductility:
  With elongation exceeding 35%, our cold rolled sheets allow severe deep drawing, spinning, roll-forming, and edge bending without intermediate annealing or micro-cracking.

• High Thermal-Mechanical Fatigue Strength:
  Engineered to withstand cyclic thermal shocks and rapid temperature variations without structural distortion, crucial for aerospace propulsion combustion zones.

• Outstanding Weldability & Fabrication Versatility:
  Readily joinable using standard TIG (GTAW), MIG (GMAW), resistance spot welding, and laser welding methods with zero post-weld heat treatment cracking tendencies.

• Strict Dimensional Uniformity & Surface Integrity:
  Multi-stand precision rolling ensures consistent gauge across the entire sheet width, clean edges free from burrs, and defect-free surfaces meeting cleanroom aerospace inspection standards.

• Aerospace Flame Tubes & Combustion Chamber Liners:
  Serving as the primary thermal shielding material in aircraft turbojets, turboprops, and gas turbine flame cans exposed to direct combustion flames and thermal gas streams.

• Gas Turbine Exhaust Ducts & Transition Pieces:
  Used in turbine exhaust fairings, thermal baffles, annular ducting, and afterburner components subjected to cyclic thermal stresses.

• Industrial Furnace Fixtures & Heat Shielding:
  High-temperature muffle tubes, annealing furnace retorts, radiant tube baffles, and heat-treatment basket liners.

• Nuclear & Petrochemical Thermal Systems:
  Specialized heat exchangers, high-temperature gas piping, and catalyst support grids operating under continuous corrosive heat.

• Laser & High-Temperature Sensor Enclosures:
  Thermal sensor protective shielding, thermocouple protection sleeves, and high-temperature diagnostic housing components.

• Ultra-Pure Vacuum Melting Process:
  Double-melted (VIM + ESR) to ensure ultra-low gas content (O, N, H), precise chemical uniformity, and elimination of segregation.
• 100% Non-Destructive Testing (NDT):
  Full ultrasonic testing (UT), surface eddy current examination, and 100% PMI spectroscopic verification on every production lot.
• Full Traceability & Material Certification:
  Complete chemical, mechanical, and microstructural batch analysis provided with 3.1 inspection documentation and full raw material lineage tracking.

• Massive Scaled Production Capacity:
  With an advanced specialized manufacturing infrastructure delivering an output capacity of 1,200 tons/month, DLX ensures continuous supply chain stability and rapid bulk project delivery.
• Full-Chain Vertical Integration:
  From vacuum induction melting, hot forging, precision cold rolling, protective atmosphere bright annealing, to multi-axis slitting, we oversee 100% of the manufacturing process internally.
• Custom Dimension & Form Factor Flexibility:
  Offering customized sheet dimensions, custom strip slitting, tight thickness tolerance management, and pre-cut blanks tailored to your engineering blueprints.
• Global B2B Project Engineering Support:
  Our dedicated metallurgical engineering team works directly with aerospace component manufacturers, gas turbine OEMs, and precision fabricators to recommend optimal heat treatments, stamping parameters, and fabrication methods.