Alloy 86 is a nickel-chromium-molybdenum alloy distinguished by a controlled cerium addition that delivers exceptional cyclic oxidation resistance up to 1050°C (1922°F) . This alloy combines good formability, weldability, and ductility with high-temperature creep strength, making it a preferred material for combustion chambers, afterburners, and industrial furnace components requiring long-term stability in aggressive thermal environments . 1. Product Specifications & Physical DataZYTC Alloy supplies alloy 86 in mill forms suitable for aerospace sheet metal fabrications and high-temperature industrial equipment requiring verified performance in oxidizing atmospheres. Available Forms: Round bar, sheet, strip, plate, forging stock, wire, and extruded sections . Specifications: MSRR 7152 (Sheet), MSRR 7141 (Bar) .
| Chemical Composition (Weight %) | Nimonic® 86 Specification |
|---|
| Nickel (Ni) | 65 | | Chromium (Cr) | 25.0 | | Molybdenum (Mo) | 10.0 | | Carbon (C) | 0.05 max. | | Cerium (Ce) | 0.03 |
| Physical Properties | Metric | Imperial |
|---|
| Density | 8.54 g/cm³ | 0.309 lb/in³ | | Melting Point | 1357°C | 2475°F | | Modulus of Elasticity | 210 GPa | 30,500 ksi | | Thermal Expansion (20-100°C) | 12.7 µm/m·°C | 7.06 µin/in·°F |
| Mechanical Properties (Solution Annealed) | Metric | Imperial |
|---|
| Tensile Strength | 825 MPa | 120 ksi | | Yield Strength (0.2% offset) | 410 MPa | 59.5 ksi | | Elongation at Break | 42% | 42% |
2. Fabrication & Material ComparisonNimonic® 86 offers good fabricability with appropriate techniques, though its strength and work-hardening characteristics require consideration. Heat Treatment: Supplied in solution-annealed condition; annealing required after cold working to restore optimal microstructure . Typical solution treatment: 1150°C × 4 hours, air cool . Welding: Excellent weldability using GTAW, GMAW, submerged-arc, and SMAW processes. Matching filler metal recommended; for non-matching applications, Ni-Co-Cr-Mo rich filler acceptable . Forming: Good ductility permits conventional forming; powerful equipment recommended due to higher strength than common steels. Heavy-duty lubricants required . Cold Working: Standard tooling methods applicable; plain carbon steels not recommended due to galling potential. Soft die materials and heavy lubricants reduce galling . Machining: Work-hardens during machining; requires rigid setups, sharp tools, and positive feeds. Water-based coolants for high-speed operations; heavy lubricants for tapping, drilling, broaching .
Applications Aerospace & Gas Turbines: Combustion chambers, afterburner components, flame tubes, sheet metal fabrications in hot sections Industrial Furnaces: Heat-treating furnace components, radiant tubes, fixtures, structural parts Combustion Systems: Components exposed to direct flame and high-velocity hot gases
Contact ZYTC Alloy for certified Alloy 86 materials with complete traceability, technical datasheets, and competitive pricing on standard sizes or custom-fabricated components. Email:daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |
