Alloy 25 / L605,Udimet L605 Strip,UNS W73605,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 Strip (UNS R30605)** **Precision Cold-Rolled Cobalt-Based Superalloy Strip** --- #### **1. Overview & Designation Clarification** **CORRECT DESIGNATIONS:** - **Alloy 25, L605, Haynes 25** - Standard commercial names - **UNS R30605** - Correct Unified Numbering System designation - **AMS 5537** - Primary strip specification **DESIGNATION CORRECTION:** - "Udimet L605" is incorrect - Udimet alloys are nickel-based superalloys - "UNS W73605" is incorrect for this material Alloy 25 Strip is a precision cold-rolled cobalt-based superalloy supplied in strip form, characterized by exceptional dimensional accuracy, superior surface finish, and consistent mechanical properties. This product is engineered for applications requiring precise geometries, excellent formability, and reliable high-temperature performance in automated manufacturing processes. --- #### **2. Chemical Composition (Typical Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | **Cobalt (Co)** | Balance | Base matrix providing solid-solution strength and wear resistance | | **Chromium (Cr)** | 19.0 - 21.0 | Exceptional oxidation and hot corrosion resistance | | **Tungsten (W)** | 14.0 - 16.0 | Primary solid-solution strengthener | | **Nickel (Ni)** | 9.0 - 11.0 | Stabilizes FCC structure, improves 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 | Improves oxidation resistance | | **Carbon (C)** | 0.05 - 0.15 | Carbide formation for wear resistance | --- #### **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 9.13 g/cm³ (0.330 lb/in³) | | **Melting Range** | 1330 - 1410°C (2425 - 2570°F) | | **Thermal Conductivity** | 9.6 W/m·K (20°C) | | **Coefficient of Thermal Expansion** | 12.5 μm/m·K (20-100°C) | | **Specific Heat Capacity** | 420 J/kg·K (20°C) | | **Electrical Resistivity** | 0.92 μΩ·m | | **Magnetic Permeability** | Essentially non-magnetic | | **Surface Finish** | 0.2 - 0.8 μm Ra (standard) | --- #### **4. Mechanical Properties** **Strip (Annealed Condition):** - **Tensile Strength**: 900 - 1100 MPa (130 - 160 ksi) - **0.2% Yield Strength**: 400 - 550 MPa (58 - 80 ksi) - **Elongation**: 55 - 65% - **Hardness**: Rockwell B 85 - 100 - **Vickers Hardness**: 180 - 220 HV **Hard Temper (¼ Hard):** - **Tensile Strength**: 1150 - 1350 MPa (167 - 196 ksi) - **0.2% Yield Strength**: 800 - 1000 MPa (116 - 145 ksi) - **Elongation**: 25 - 35% - **Hardness**: Rockwell B 100 - 108 **High-Temperature Performance:** - **Maximum Service Temperature**: 1150°C (2100°F) in oxidizing atmospheres - **Creep Resistance**: Excellent up to 980°C (1800°F) - **Spring Properties**: Maintains elasticity at elevated temperatures --- #### **5. International Standards & Specifications** | Standard | Description | Product Form | |----------|-------------|---------------| | **AMS 5537** | Sheet, strip, and plate | Strip | | **ASTM F90** | Wrought cobalt-chromium-tungsten alloy | All forms | | **ASME SB-574** | Strip specifications | Strip | | **UNS R30605** | Correct UNS designation | All forms | | **EN 2.4964** | European material number | All forms | --- #### **6. Product Applications** **Electronics & Electrical:** - High-temperature electrical contacts - Spring contacts and connectors - Lead frames for high-power devices - Resistance heating elements **Automotive & Aerospace:** - Turbine blade seals and shrouds - Gaskets and sealing elements - Fuel nozzle components - High-temperature spring components **Industrial & Medical:** - Precision springs for high-temperature applications - Medical device components - Surgical instrument parts - Chemical processing equipment components **Specialized Applications:** - Bellows and expansion joints - Diaphragms for high-temperature service - Shim stock for precision alignment - Wear-resistant strips and guides --- #### **7. Strip Specifications** **Standard Dimensions:** - **Thickness**: 0.05 mm to 2.0 mm (0.002" to 0.080") - **Width**: 2 mm to 600 mm (0.08" to 24") - **Length**: Coils or cut lengths - **Tolerance**: ±0.005 mm (thickness), ±0.1 mm (width) **Available Conditions:** - **Annealed (Soft)**: Maximum formability - **¼ Hard**: Balance of strength and formability - **½ Hard**: Increased strength - **Full Hard**: Maximum strength - **Custom Tempers**: Available on request **Surface Finish Options:** - **Bright Finish**: Standard cold-rolled finish - **Satin Finish**: Uniform matte appearance - **Polished Finish**: Special high-gloss finish - **Special Coatings**: Available upon request --- #### **8. Fabrication Characteristics** **Stamping & Blanking:** - Excellent for precision stamping operations - Suitable for progressive die applications - Clean edges with minimal burring - Good dimensional stability **Forming & Bending:** - Excellent cold forming characteristics - Minimum bend radius: 1T (annealed condition) - Suitable for deep drawing operations - Good spring-back control **Welding & Joining:** - Good weldability with TIG and laser welding - Resistance welding suitable - Low heat input recommended - Use L605 filler material when needed **Heat Treatment:** - **Annealing Temperature**: 1175-1230°C (2150-2250°F) - **Stress Relieving**: 870-900°C (1600-1650°F) - **Atmosphere Control**: Recommended for best results --- #### **9. Quality Assurance** **Testing & Certification:** - Dimensional accuracy verification - Surface quality inspection - Mechanical properties testing - Chemical analysis certification - Full traceability maintained **Quality Standards:** - AMS 5537 compliance - Statistical process control maintained - SPC data available upon request - Customer-specific requirements accommodated - Certificates of Compliance provided **Special Quality Features:** - Consistent mechanical properties across entire coil - Uniform thickness control - Excellent surface quality - Tight dimensional tolerances - Clean, contamination-free surface --- **Important Note**: This datasheet provides accurate technical data for genuine **Alloy 25/L605/Haynes 25 Strip (UNS R30605)**. The designations "Udimet L605" and "UNS W73605" are incorrect and should not be used. Always verify material certifications against AMS 5537 or ASTM F90 for critical applications. Consult with our technical team for specific stamping, forming, and fabrication recommendations.

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 2216 gallon liquid totes Special package is available on request.