Alloy 105,Nimonic 105 ,,E FORU

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

### **Product Data Sheet: Alloy 105 / Nimonic 105** **Overview** **Alloy 105** (commonly known as **Nimonic 105**) is a precipitation-hardenable nickel-chromium-cobalt superalloy developed for high-temperature service. It is characterized by **exceptional creep strength, excellent oxidation resistance, and good microstructural stability** at temperatures up to 950°C (1740°F). Originally developed as an advanced gas turbine blade material, Nimonic 105 offers superior stress rupture properties compared to earlier nickel-based superalloys. The alloy achieves its high-temperature strength through a combination of solid solution strengthening and precipitation hardening via the gamma prime (γ') phase. --- #### **1. Chemical Composition** | Element | Content (%) (Typical) | Role in the Alloy | | :--- | :--- | :--- | | **Nickel (Ni)** | Balance | Austenitic matrix former; provides corrosion resistance | | **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)** * **Tensile Strength:** 1000-1200 MPa (145-174 ksi) * **Yield Strength (0.2% Offset):** 700-850 MPa (102-123 ksi) * **Elongation:** 10-20% **Elevated Temperature Capability** * **Creep Rupture Strength (1000 hours):** * **850°C (1560°F):** ~120 MPa (~17.4 ksi) * **950°C (1740°F):** ~50 MPa (~7.3 ksi) --- #### **4. Product Applications** Nimonic 105 is primarily used in high-stress, high-temperature components in aerospace and industrial applications: * **Aerospace & Gas Turbine Engines:** * **Turbine blades and vanes** * **Rotor discs and spacers** * **Combustion chamber components** * **Afterburner parts** * **Power Generation:** * **Gas turbine components** * **High-temperature bolting and fasteners** * **Industrial Processing:** * **Heat treatment fixtures** * **High-temperature tooling** --- #### **5. International Standards** | Standard Type | Standard Number | Description | | :--- | :--- | :--- | | **Unified Numbering System** | **UNS N07105** | All product forms | | **Aerospace (SAE/AMS)** | **AMS 5800** | Bar, forgings, and rings | | **British Standard** | **BS HR 6** | Sheet, strip, and plate | | **European** | **EN 10302** | Nickel and cobalt alloys | | **Werkstoff Nr.** | **2.4634** | Material number | | **ISO** | **ISO 6207** | Nickel alloy specifications | --- **Summary** **Alloy 105 (Nimonic 105)** represents an important class of nickel-based superalloys optimized for high-stress applications at extreme temperatures. Its balanced composition provides an excellent combination of creep resistance, oxidation stability, and mechanical strength, making it particularly suitable for rotating components in gas turbine engines. The alloy's compliance with major international standards including AMS 5800 and BS HR 6 ensures consistent quality and reliability for critical aerospace and power generation 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 2131 gallon liquid totes Special package is available on request.