Alloy 25 / L605,Haynes 25 Forgings,UNS R30605,E FORU

British Specs:，American Specs:AMS 5537 Sheet AMS 5759 Bar & Rod AMS 5796 Welding wire AMS 5797 Covered welding rod，German Specs:

### **Technical Data Sheet: Alloy 25 / L605 / Haynes 25 Forgings (UNS R30605)** **Premium Quality High-Temperature Forged Components** --- #### **1. Overview** **Alloy 25 Forgings** (commercially known as **Haynes 25**, **L605**, or **UNS R30605**) represent the highest quality wrought product form of this cobalt-chromium-tungsten-nickel superalloy. Through controlled thermomechanical forging processes, these components achieve superior mechanical properties, refined grain structure, and optimized material integrity for the most demanding high-temperature applications. The forging process enhances the alloy's inherent characteristics, providing improved fatigue resistance, better structural reliability, and elimination of casting defects. This makes L605 forgings the preferred choice for critical rotating components, structural supports, and safety-critical parts in aerospace, power generation, and industrial applications where failure is not an option. --- #### **2. Chemical Composition (Typical Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | **Cobalt (Co)** | Balance | Base matrix providing solid-solution strength and inherent wear resistance | | **Chromium (Cr)** | 19.0 - 21.0 | Provides exceptional oxidation and hot corrosion resistance | | **Tungsten (W)** | 14.0 - 16.0 | Primary solid-solution strengthener for high-temperature strength | | **Nickel (Ni)** | 9.0 - 11.0 | Stabilizes the FCC structure, improving ductility and fabricability | | **Iron (Fe)** | 3.0 max | Impurity control | | **Manganese (Mn)** | 1.0 - 2.0 | Enhances hot workability and sulfur control | | **Silicon (Si)** | 0.30 - 0.60 | Acts as deoxidizer and improves oxidation resistance | | **Carbon (C)** | 0.05 - 0.15 | Forms carbides for wear resistance and grain boundary strength | --- #### **3. Physical Properties** | Property | Value / Condition | |----------|-------------------| | **Density** | 9.13 g/cm³ (0.330 lb/in³) | | **Melting Range** | 1330 - 1410°C (2425 - 2570°F) | | **Thermal Conductivity** | 9.6 W/m·K (at 20°C) | | **Coefficient of Thermal Expansion** | 12.5 μm/m·K (20-100°C)
17.8 μm/m·K (20-1000°C) | | **Specific Heat Capacity** | 420 J/kg·K (at 20°C) | | **Electrical Resistivity** | 0.92 μΩ·m | | **Magnetic Permeability** | Essentially non-magnetic | | **Forging Temperature Range** | 1150-1200°C (2100-2190°F) | --- #### **4. Mechanical Properties** **Room Temperature Properties (Heat Treated Condition)**: - **Tensile Strength**: 1000 - 1300 MPa (145 - 188 ksi) - **0.2% Yield Strength**: 500 - 700 MPa (73 - 102 ksi) - **Elongation**: 45 - 55% - **Reduction of Area**: 50 - 65% - **Hardness**: Rockwell B 98 - 108 - **Impact Strength**: 80 - 100 J (Charpy V-notch) **Elevated Temperature Properties**: - **Creep Rupture Strength (870°C/1600°F)**: 100+ hours at 100 MPa - **Stress Rupture (980°C/1800°F)**: Maintains significant load-bearing capability - **Thermal Fatigue Resistance**: Excellent performance under cyclic conditions --- #### **5. International Standards & Specifications** | Standard Organization | Standard Designation | Description | |----------------------|----------------------|-------------| | **ASTM International** | **ASTM F90** | Wrought cobalt-20chromium-15tungsten-10nickel alloy | | **Aerospace (SAE/AMS)** | **AMS 5759** | Bars, forgings, and rings | | **ASME** | **SB-574** | Forged or rolled alloy components | | **Unified Numbering System** | **UNS R30605** | All product forms | | **European (EN)** | **2.4964** | Material number | --- #### **6. Product Applications** **Aerospace & Defense**: - Gas turbine engine components - Turbine blades and vanes - Afterburner components - Missile structural components - Rocket engine parts **Power Generation**: - Gas turbine disks and seals - Steam turbine components - High-temperature fasteners - Valve bodies and stems - Turbine buckets and blades **Industrial & Medical**: - Chemical processing equipment - High-temperature tooling - Medical implant components - Nuclear reactor components - Specialized machinery parts --- #### **7. Forging Capabilities & Processes** **Forging Methods**: - Open-die forgings - Closed-die forgings - Precision forgings - Ring rolling - Upset forgings **Available Forms**: - **Billet Size**: 50mm to 500mm diameter - **Ring Size**: Up to 3000mm diameter - **Disk Forgings**: Various configurations - **Custom Shapes**: Per customer specifications - **Weight Range**: 1kg to 2000kg **Heat Treatment**: - Solution annealing: 1175-1230°C (2150-2250°F) - Rapid cooling for optimal properties - Stress relieving available - Full heat treatment certification --- #### **8. Quality Assurance & Testing** **Non-Destructive Testing**: - Ultrasonic testing per AMS 2630 - Liquid penetrant inspection per AMS 2647 - Magnetic particle inspection (where applicable) - Radiographic examination **Destructive Testing**: - Tensile testing at room and elevated temperatures - Impact testing - Hardness surveys - Microstructural examination - Grain size determination **Certification & Documentation**: - Mill certification to ASTM F90 - Heat treatment certification - Chemical analysis report - Mechanical test reports - Non-destructive testing reports - Full traceability from melt to final product --- **Note**: This technical data sheet provides typical values and characteristics. Specific mechanical properties may vary depending on forging size, configuration, and heat treatment parameters. Consult with our engineering team for application-specific recommendations and detailed technical support.

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 2205 gallon liquid totes Special package is available on request.