NIMONIC Alloy 86,Nickel-Chromium Alloy，1

### **Product Introduction: NIMONIC® Alloy 86** **NIMONIC® Alloy 86** is a nickel-chromium-based superalloy specifically designed for exceptional high-temperature performance and superior oxidation resistance. Developed as part of the renowned Nimonic series, this alloy maintains excellent mechanical properties and structural stability at elevated temperatures, making it particularly suitable for applications in aggressive thermal environments where both strength and corrosion resistance are critical requirements. The alloy's optimized composition provides outstanding resistance to oxidation, carburization, and other forms of high-temperature degradation, ensuring reliable long-term performance in demanding service conditions. Its balanced properties make it a preferred choice for critical components in aerospace, power generation, and industrial heating applications. --- ### **Chemical Composition** The chemical composition of Nimonic Alloy 86 is precisely controlled to achieve optimal high-temperature performance: | Element | Content (%) | | :--- | :--- | | **Nickel (Ni)** | Balance | | **Chromium (Cr)** | 24.0 - 26.0 | | **Cobalt (Co)** | 19.0 - 21.0 | | **Molybdenum (Mo)** | 3.5 - 4.5 | | **Titanium (Ti)** | 1.8 - 2.3 | | **Aluminum (Al)** | 1.5 - 2.0 | | **Carbon (C)** | 0.05 - 0.10 | | **Iron (Fe)** | 1.5 max | | **Silicon (Si)** | 0.5 max | | **Manganese (Mn)** | 0.5 max | | **Boron (B)** | 0.005 max | | **Zirconium (Zr)** | 0.05 - 0.15 | --- ### **Physical Properties** Nimonic Alloy 86 exhibits physical characteristics typical of advanced nickel-based superalloys: | Property | Value | | :--- | :--- | | **Density** | 8.25 g/cm³ | | **Melting Point** | 1360-1410 °C | | **Thermal Conductivity** | 11.8 W/m·K (at 20°C) | | **Electrical Resistivity** | 1.28 μΩ·m | | **Modulus of Elasticity** | 215 GPa | | **Coefficient of Thermal Expansion** | 13.2 μm/m·°C (20-1000°C) | | **Specific Heat Capacity** | 450 J/kg·K | | **Magnetic Response** | Essentially non-magnetic | --- ### **Mechanical Properties** The alloy demonstrates excellent mechanical performance across a wide temperature range: **Typical Mechanical Properties (Solution Treated and Aged):** - **Tensile Strength (RT):** 1100-1300 MPa - **Yield Strength (0.2% Offset, RT):** 750-900 MPa - **Elongation (RT):** 15-25% - **Hardness:** 35-42 HRC - **Creep Rupture Strength (850°C/1000h):** 180 MPa - **Fatigue Strength (800°C):** 350 MPa --- ### **Key Characteristics & Advantages** 1. **Exceptional High-Temperature Capability** - Maintains mechanical properties up to 950°C - Excellent creep and stress rupture strength - Good thermal fatigue resistance 2. **Superior Environmental Resistance** - Outstanding oxidation resistance up to 1100°C - Excellent resistance to carburization and sulfidation - Good hot corrosion resistance 3. **Microstructural Stability** - Long-term stability at elevated temperatures - Resistance to phase transformation and embrittlement - Maintains properties during prolonged exposure 4. **Manufacturing Flexibility** - Good hot workability - Can be forged, rolled, and formed - Suitable for conventional machining processes --- ### **Product Applications** **Aerospace Industry:** - Gas turbine blades and vanes - Combustion chamber components - Afterburner parts - Exhaust system assemblies **Power Generation:** - Gas turbine components - Heat exchanger parts - High-temperature fasteners - Turbine disks and shafts **Industrial Applications:** - Heat treatment fixtures - Industrial furnace components - Chemical processing equipment - Nuclear reactor components --- ### **International Standards** Nimonic Alloy 86 conforms to several international specifications: | Standard Type | Standard Number | Description | | :--- | :--- | :--- | | **AMS** | 5878 | Aerospace Material Specification | | **BS** | HR 507 | British Standard | | **DIN** | 17742 | German Standard | | **Werkstoff** | 2.4633 | Material Number | | **ISO** | 9725 | International Standard | --- ### **Heat Treatment** **Solution Treatment:** - Temperature: 1150-1180°C - Time: 2-4 hours - Cooling: Air cool or faster **Aging Treatment:** - Temperature: 800-850°C - Time: 8-16 hours - Cooling: Air cool --- ### **Summary** **NIMONIC Alloy 86** represents an advanced nickel-chromium superalloy offering an outstanding balance of high-temperature strength, oxidation resistance, and microstructural stability. Its sophisticated composition, featuring significant cobalt and molybdenum additions, provides enhanced performance capabilities for the most demanding high-temperature applications. The alloy's exceptional creep resistance and environmental durability make it particularly valuable for critical components in aerospace propulsion systems and power generation equipment. Compliance with major international standards ensures consistent quality and reliability, while its established manufacturing history provides confidence for engineers designing systems where material performance at extreme temperatures is paramount.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3312 gallon liquid totes Special package is available on request.