Alloy 105,Nimonic 105 Forgings,,E FORU

British Specs:BS HR3，American Specs:，German Specs:WS 2.4634,AFNOR NCKD 20ATv

### **Product Data Sheet: Alloy 105 / Nimonic 105 Forgings (UNS N07105)** **Overview** **Alloy 105** (commercially known as **Nimonic 105**) is a precipitation-hardenable nickel-chromium-cobalt superalloy specifically engineered for high-temperature service. In the form of **forgings**, this material delivers exceptional **creep strength, outstanding oxidation resistance, and superior structural integrity** at temperatures up to 950°C (1740°F). Nimonic 105 forgings are produced through controlled thermomechanical processes that refine the grain structure, enhance mechanical properties, and ensure metallurgical soundness. The forging process optimizes the alloy's inherent high-temperature capabilities, making it the preferred manufacturing route for critically stressed components in aerospace and power generation applications. --- #### **1. Chemical Composition** | Element | Content (%) (Typical) | Role in the Alloy | | :--- | :--- | :--- | | **Nickel (Ni)** | Balance | Austenitic matrix former; provides corrosion resistance and toughness | | **Chromium (Cr)** | 14.0 - 15.7 | Confers oxidation and hot corrosion resistance | | **Cobalt (Co)** | 18.0 - 22.0 | Solid solution strengthener; enhances high-temperature strength | | **Molybdenum (Mo)** | 4.5 - 5.5 | Provides solid solution strengthening and creep resistance | | **Aluminum (Al)** | 4.5 - 4.9 | Primary precipitation hardener (forms γ' phase, Ni₃Al) | | **Titanium (Ti)** | 0.9 - 1.5 | Secondary precipitation hardener; contributes to γ' formation | | **Carbon (C)** | 0.12 - 0.20 | Forms carbides for grain boundary strength | | **Boron (B)** | 0.005 - 0.015 | Strengthens grain boundaries and improves creep life | | **Zirconium (Zr)** | 0.05 - 0.15 | Enhances creep rupture properties | | **Manganese (Mn)** | 0.50 max | Controls sulfur content | | **Silicon (Si)** | 0.60 max | Improves oxidation resistance | | **Iron (Fe)** | 1.0 max | Residual element | --- #### **2. Physical Properties** | Property | Value / Condition | | :--- | :--- | | **Density** | 8.06 g/cm³ (0.291 lb/in³) | | **Melting Range** | 1330 - 1360°C (2425 - 2480°F) | | **Specific Heat** | 455 J/kg·K (0.109 Btu/lb·°F) @ 20°C | | **Thermal Conductivity** | 11.5 W/m·K (79.7 Btu·in/hr·ft²·°F) @ 20°C | | **Mean Coefficient of Thermal Expansion** | 12.8 × 10⁻⁶/°C (20-100°C) | | | 16.2 × 10⁻⁶/°C (20-800°C) | | **Electrical Resistivity** | 1.28 μΩ·m @ 20°C | | **Modulus of Elasticity** | 214 GPa (31.0 × 10⁶ psi) @ 20°C | | | 159 GPa (23.1 × 10⁶ psi) @ 800°C | --- #### **3. Mechanical Properties** **Typical Room Temperature Properties (Heat Treated Condition)** * **Tensile Strength:** 1000-1200 MPa (145-174 ksi) * **Yield Strength (0.2% Offset):** 700-850 MPa (102-123 ksi) * **Elongation:** 10-20% * **Reduction of Area:** 15-25% **Elevated Temperature Performance** * **Stress Rupture Strength (1000 hours):** * **850°C (1560°F):** ~120 MPa (~17.4 ksi) * **950°C (1740°F):** ~50 MPa (~7.3 ksi) --- #### **4. Forging Process & Capabilities** **Forging Types:** * **Open-Die Forgings:** For large, simple shapes * **Closed-Die Forgings:** For complex, near-net shapes * **Rolled Rings:** For circumferential components **Forging Temperature Range:** * **Hot Working:** 1050-1150°C (1920-2100°F) * **Solution Treatment:** 1150°C ± 10°C, followed by rapid cooling * **Aging Treatment:** 800-850°C for optimal precipitation hardening --- #### **5. Key Characteristics** * **Superior Structural Integrity:** Forging eliminates porosity and refines grain structure * **Enhanced Mechanical Properties:** Improved strength, ductility, and fatigue resistance * **Optimized Grain Flow:** Grain structure oriented to follow component contours * **Excellent Creep Resistance:** Maintains mechanical integrity under prolonged stress * **Outstanding Oxidation Resistance:** Suitable for continuous service in oxidizing atmospheres * **Thermal Stability:** Retains microstructure and properties during long-term exposure * **Good Machinability:** Can be machined using conventional methods with proper tooling --- #### **6. Product Applications** Nimonic 105 forgings are specified for the most critically stressed components: * **Aerospace & Gas Turbine Engines:** * **Turbine blades and vanes** * **Rotor discs and hubs** * **Compressor casings** * **Combustion chamber components** * **Shafts and spindle assemblies** * **Turbine spacers and rings** * **Power Generation:** * **Gas turbine rotor components** * **High-temperature bolting and fasteners** * **Valve bodies and stems** * **Turbine wheels and discs** * **Industrial & Marine Turbines:** * **Critical rotating components** * **High-stress structural parts** * **Special Applications:** * **Rocket engine components** * **Nuclear reactor fixtures** --- #### **7. International Standards** | Standard Type | Standard Number | Description | | :--- | :--- | :--- | | **Unified Numbering System** | **UNS N07105** | All product forms | | **Aerospace (SAE/AMS)** | **AMS 5800** | Bars, Forgings, and Rings (Solution heat treated, precipitation-hardenable) | | **ASTM** | **ASTM B637** | Standard Specification for Precipitation-Hardening Nickel Alloy Bars, Forgings, and Forging Stock | | **European** | **EN 10302** | Nickel and cobalt alloys | | **Werkstoff Nr.** | **2.4634** | Material number | | **ISO** | **ISO 9725** | Nickel alloy forgings for aerospace applications | | **OEM Specifications** | **Pratt & Whitney** | PWA, RPS, and other OEM-specific standards | | **OEM Specifications** | **General Electric** | GE, EDS, and other OEM-specific standards | --- **Quality Assurance** * Ultrasonic testing per ASTM A388 * Dye penetrant inspection * Magnetic particle inspection (when applicable) * Full traceability and certification * Heat treatment compliance records **Summary** **Alloy 105 Forgings (Nimonic 105, UNS N07105)** represent the premium product form for components demanding the highest levels of strength, reliability, and metallurgical soundness. The forging process imparts a uniform, refined microstructure that is essential for withstanding extreme centrifugal, thermal, and vibratory stresses encountered in jet engine and power turbine cores. Their proven performance under severe conditions, governed by strict international standards like AMS 5800 and ASTM B637, makes them a fundamental material for advanced engineering in aerospace and energy sectors. The combination of superior high-temperature properties and optimized forging technology ensures maximum component reliability and service life in the most demanding applications.

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 2140 gallon liquid totes Special package is available on request.