Alloy 105,Nimonic 105 Bar(Round bar, Flat bar),,E FORU

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

### **Product Data Sheet: Alloy 105 / Nimonic 105 Bar (Round Bar, Flat Bar)** **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 **round bar and flat bar**, this material provides exceptional **creep strength, excellent oxidation resistance, and outstanding structural integrity** at temperatures up to 950°C (1740°F). Nimonic 105 bar products are particularly suited for machining and fabrication into critical components where dimensional stability and mechanical reliability under extreme thermal and stress conditions are paramount. The bar form offers excellent machinability in the solution-treated condition while developing superior strength through subsequent aging treatment. --- #### **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. Product Forms & Characteristics** **Round Bar:** * **Diameter Range:** 5mm to 300mm (0.2" to 12") * **Applications:** Rotating components, shafts, fasteners, machined parts * **Advantages:** Uniform mechanical properties, excellent machinability **Flat Bar:** * **Size Range:** 3mm to 150mm thickness, 10mm to 300mm width * **Applications:** Structural supports, brackets, wear plates, fabrication components * **Advantages:** Good dimensional stability, easy to machine and fabricate --- #### **5. Key Characteristics** * **Excellent Machinability:** Can be readily machined in the solution-annealed condition * **Superior Creep Resistance:** Maintains mechanical integrity under prolonged stress at high temperatures * **Outstanding Oxidation Resistance:** Suitable for continuous service in oxidizing atmospheres up to 950°C * **Controlled Grain Structure:** Optimized microstructure for enhanced fatigue performance * **Precipitation Hardenable:** Achieves maximum strength through aging heat treatment * **Good Weldability:** Can be welded using appropriate procedures --- #### **6. Product Applications** Nimonic 105 bar is primarily used for machining and fabricating critical components in high-temperature environments: * **Aerospace & Gas Turbine Engines:** * **Turbine blades and vanes** (Round bar) * **Rotor discs and spacers** (Round bar) * **Shafts and spindle components** (Round bar) * **Structural supports and brackets** (Flat bar) * **Fasteners and bolting** (Round bar) * **Power Generation:** * **Gas turbine components** * **High-temperature valve stems** * **Rotor assemblies** * **Combustion chamber supports** * **Industrial Processing:** * **Heat treatment fixtures** * **High-temperature tooling** * **Extrusion screws and barrels** * **Furnace components** --- #### **7. International Standards** | Standard Type | Standard Number | Description | | :--- | :--- | :--- | | **Unified Numbering System** | **UNS N07105** | All product forms | | **Aerospace (SAE/AMS)** | **AMS 5800** | Bar, forgings, and rings (Solution heat treated, precipitation-hardenable) | | **British Standard** | **BS HR 6** | Bar specifications | | **European** | **EN 10302** | Nickel and cobalt alloys | | **Werkstoff Nr.** | **2.4634** | Material number | | **ASTM** | **ASTM B637** | Standard Specification for Precipitation-Hardening Nickel Alloy Bars, Forgings, and Forging Stock for High-Temperature Service | | **ISO** | **ISO 9723** | Nickel alloy bars for aerospace applications | --- **Summary** **Alloy 105 Bar (Nimonic 105, UNS N07105)** in both round and flat forms provides an optimal combination of machinability and high-temperature performance for critical rotating, structural, and fabricated components. Its exceptional creep strength and oxidation resistance at temperatures up to 950°C make it particularly suitable for gas turbine engine components and other high-stress applications in extreme thermal environments. Compliance with international standards including AMS 5800, ASTM B637, and BS HR 6 ensures consistent quality and reliability for aerospace, power generation, and industrial 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 2133 gallon liquid totes Special package is available on request.