Alloy 25 / L605,Haynes 25 Wire,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 Wire (UNS R30605)** **High-Temperature Cobalt-Based Superalloy Wire for Critical Applications** --- #### **1. Overview** **Alloy 25 Wire** (commercially known as **Haynes 25**, **L605**, or **UNS R30605**) is a solid-solution strengthened cobalt-chromium-tungsten-nickel superalloy supplied in wire form. This product is engineered to deliver exceptional high-temperature tensile and creep strength, outstanding oxidation resistance, and excellent fatigue performance in demanding environments. The wire form of L605 is manufactured through precision hot and cold drawing processes, followed by controlled heat treatment, to achieve consistent mechanical properties and surface quality. It is widely used in high-temperature fasteners, welding applications, spring components, and specialized industrial uses where reliability under extreme stress and temperature is critical. --- #### **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) | | **Specific Heat Capacity** | 420 J/kg·K (at 20°C) | | **Electrical Resistivity** | 0.92 μΩ·m | | **Magnetic Permeability** | Essentially non-magnetic | --- #### **4. Mechanical Properties** **Room Temperature Properties (Annealed Condition)**: - **Tensile Strength**: 950 - 1200 MPa (138 - 174 ksi) - **0.2% Yield Strength**: 450 - 600 MPa (65 - 87 ksi) - **Elongation**: 45 - 60% - **Reduction of Area**: 50 - 70% - **Hardness**: Rockwell B 95 - 105 **High-Temperature Performance**: - Excellent creep resistance up to **980°C (1800°F)** - Retains high tensile strength and oxidation resistance up to **1150°C (2100°F)** - Good stress rupture properties under sustained loads --- #### **5. International Standards & Specifications** | Standard Organization | Standard Designation | Description | |----------------------|----------------------|-------------| | **ASTM International** | **ASTM F90** | Wrought cobalt-20chromium-15tungsten-10nickel alloy | | **Aerospace (SAE/AMS)** | **AMS 5796** | Welding wire and rod specification | | **AWS** | **AWS A5.13** | Welding electrode and rod specification | | **Unified Numbering System** | **UNS R30605** | All product forms | | **European (EN)** | **2.4964** | Material number | --- #### **6. Product Applications** **Welding & Fabrication**: - **Welding Wire**: For joining and repairing L605 components using TIG, MIG, and SAW processes - **Cladding Applications**: Overlay welding for wear and corrosion protection - **Build-up and Hardfacing**: Restoration of worn components **Fastener and Spring Manufacturing**: - **High-Temperature Fasteners**: Bolts, studs, and nuts for turbine and exhaust systems - **Spring Wire**: Coil springs, retaining rings, and clip components for elevated temperature service - **Lock Wire**: Safety wiring for critical aerospace fasteners **Specialized Industrial Uses**: - **Thermocouple Wires**: High-temperature measurement systems - **Electrical Components**: Heating elements and resistance wires - **Filter Meshes**: High-temperature filtration systems - **Medical Devices**: Orthopedic cables and surgical wire --- #### **7. Available Wire Forms & Specifications** **Standard Sizes**: - **Diameter Range**: 0.5 mm to 10.0 mm (0.020" to 0.400") - **Tolerance**: ±0.025 mm to ±0.075 mm depending on diameter - **Spool Types**: 5 kg to 200 kg spools, coils, or straight lengths **Surface Conditions**: - **Bright Finish**: Clean, scale-free surface for welding and forming - **Oxidized Finish**: For certain high-temperature applications - **Special Coatings**: Available upon request **Temper Conditions**: - **Annealed**: Maximum ductility for forming and bending - **Hard Drawn**: Higher strength for spring and fastener applications --- #### **8. Fabrication & Welding Notes** **Welding Characteristics**: - Excellent weldability with matching composition filler metal - Suitable for all arc welding processes - Preheating generally not required - Post-weld heat treatment optional based on application **Forming and Machining**: - Good cold forming characteristics in annealed condition - Can be machined using conventional methods with positive rake tools - Work hardens during forming; intermediate annealing may be required **Heat Treatment**: - Annealing temperature: 1175-1230°C (2150-2250°F) - Stress relieving available for specific applications --- #### **9. Quality Assurance** - Certified to ASTM F90 and AMS 5796 specifications - Full chemical and mechanical property certification - Dimensional compliance verification - Surface quality inspection - Lot traceability maintained --- **Note**: This technical data sheet provides typical values and characteristics. Specific properties may vary depending on wire diameter, temper condition, and manufacturing process. Consult with our technical team for application-specific recommendations and performance verification.

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 2208 gallon liquid totes Special package is available on request.