Nimonic® 105 is a precipitation-hardenable nickel-cobalt-chromium superalloy with strategic molybdenum, aluminum, and titanium additions. It represents a significant advancement over Nimonic 100 series alloys, offering exceptional creep rupture strength and thermal fatigue resistance up to 950°C (1742°F). This alloy is specifically formulated for the most critically stressed rotating components in gas turbine engines, where prolonged exposure to extreme temperatures and stress demands material reliability .
1. Product Specifications & Physical DataZYTC Alloy supplies UNS N07105 in mill forms suitable for gas turbine blades, discs, and high-temperature fasteners requiring certified mechanical properties and complete material traceability. Available Forms: Round bar, flat bar, rod, billet, custom forgings, and sections . Specifications: Werkstoff Nr. 2.4634, DIN 17744, BS HR 21 (formerly DTD 5007 and DTD 5044) .
| Chemical Composition (Weight %) | Alloy 105 Specification |
|---|
| Nickel (Ni) | 51 | | Cobalt (Co) | 18.0 - 22.0 | | Chromium (Cr) | 14.0 - 15.7 | | Molybdenum (Mo) | 4.50 - 5.50 | | Aluminum (Al) | 4.50 - 4.90 | | Titanium (Ti) | 0.90 - 1.50 | | Iron (Fe) | 1.0 max. | | Manganese (Mn) | 1.0 max. | | Silicon (Si) | 1.0 max. | | Zirconium (Zr) | 0.15 max. | | Carbon (C) | 0.12 max. | | Boron (B) | 0.003 - 0.010 | | Copper (Cu) | 0.20 max. | | Sulfur (S) | 0.010 max. |
| Physical Properties | Metric | Imperial |
|---|
| Density | 8.01 g/cm³ | 0.289 lb/in³ | | Melting Point | 1327°C | 2420°F | | Modulus of Elasticity (RT) | 213 GPa | 30.9 × 10⁶ psi | | Thermal Conductivity (RT) | 11.8 W/m·K | 82 BTU·in/hr·ft²·°F |
| Mechanical Properties (Aged) | Temperature | Metric | Imperial |
|---|
| Tensile Strength | RT | ≥ 1150 MPa | ≥ 167 ksi | | Yield Strength (0.2% offset) | RT | ≥ 770 MPa | ≥ 112 ksi | | Elongation | RT | ≥ 25% | ≥ 25% | | Tensile Strength | 750°C (1380°F) | 1030 MPa | 149 ksi | | Yield Strength | 750°C (1380°F) | 690 MPa | 100 ksi | | Elongation | 750°C (1380°F) | 15% | 15% |
2. Fabrication & Material ComparisonNimonic® 105 requires precise multistage thermal processing to develop the optimized gamma-prime precipitate distribution responsible for its high-temperature strength. Heat Treatment : Stage 1: Solution anneal at 1149°C (2100°F) × 4 hours, air cool Stage 2: Intermediate treatment at 1056°C (1925°F) × 16 hours, air cool Stage 3: Precipitation hardening at 849°C (1560°F) × 16 hours, air cool Stage 4: Final air cool to establish microstructure
Welding: Weldable using GTAW (TIG) and GMAW (MIG) processes with matching filler metal. Post-weld full heat treatment necessary to restore parent metal properties. Pre-weld cleaning essential . Forming & Hot Working: Hot Working Range: 950-1150°C (1742-2102°F) Forging: Within hot working range with controlled strain rates Cold Working: Not typically performed; all forming done at elevated temperatures
Machining: Requires heavy-duty equipment due to high strength and work-hardening tendency. Carbide tooling with positive rake angles essential. Water-based coolants for high-speed operations; heavy lubricants for drilling and tapping. Rigid setups minimize chatter .
Applications Gas Turbine Engines: Turbine blades (rotor and stator), turbine discs, nozzle guide vanes, high-temperature fasteners Aerospace: Ring sections, casings, forged components for hot sections Power Generation: Industrial gas turbine blading, high-temperature bolting Automotive: High-performance racing engine valves and turbocharger components
Contact ZYTC Alloy for certified Alloy 105 (2.4634) materials with complete traceability, BS/AMS specifications, technical datasheets, and competitive pricing on standard sizes or custom-forged components. Email:daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |
