Alloy 25 / L605,Udimet L605 Foil,Shim,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 Foil & Shim Stock (UNS R30605) **Precision Thin-Gauge Material for High-Temperature Applications** --- #### 1. Overview & Designation Clarification **CORRECT DESIGNATIONS:** - **Alloy 25, L605, Haynes 25** - Cobalt-based superalloy - **UNS R30605** - Correct Unified Numbering System **DESIGNATION CORRECTION:** - "Udimet L605" - Incorrect designation - "UNS W73605" - Incorrect UNS number Alloy 25 Foil and Shim Stock represents the thin-gauge form of this premium cobalt-based superalloy, specifically engineered for precision sealing, spacing, and thermal management applications in extreme environments where conventional materials would fail. --- #### 2. Chemical Composition (Typical Weight %) | Element | Content (%) | Role in Thin-Gauge Products | |---------|-------------|----------------------------| | **Cobalt (Co)** | Balance | Provides base strength and wear resistance | | **Chromium (Cr)** | 19.0-21.0 | Oxidation and corrosion resistance | | **Tungsten (W)** | 14.0-16.0 | Solid-solution strengthening | | **Nickel (Ni)** | 9.0-11.0 | Improves ductility and formability | | **Iron (Fe)** | 3.0 max | Impurity control | | **Manganese (Mn)** | 1.0-2.0 | Enhances workability | | **Silicon (Si)** | 0.30-0.60 | Improves oxidation resistance | | **Carbon (C)** | 0.05-0.15 | Controlled for formability | --- #### 3. Physical Properties | Property | Foil (0.025-0.15mm) | Shim Stock (0.15-2.0mm) | |----------|---------------------|------------------------| | **Density** | 9.13 g/cm³ | 9.13 g/cm³ | | **Melting Range** | 1330-1410°C | 1330-1410°C | | **Thermal Conductivity** | 9.6 W/m·K | 9.6 W/m·K | | **CTE (20-100°C)** | 12.5 μm/m·K | 12.5 μm/m·K | | **Surface Finish** | 0.1-0.4 μm Ra | 0.2-0.8 μm Ra | | **Flatness Tolerance** | ±0.025mm | ±0.05mm | --- #### 4. Mechanical Properties **Foil Properties (Annealed):** - **Thickness Range**: 0.025-0.15 mm - **Tensile Strength**: 850-1050 MPa - **Yield Strength (0.2%)**: 350-500 MPa - **Elongation**: 40-50% - **Hardness**: 180-220 HV **Shim Stock Properties:** - **Thickness Range**: 0.15-2.0 mm - **Tensile Strength**: 900-1150 MPa - **Yield Strength (0.2%)**: 400-550 MPa - **Elongation**: 35-45% - **Hardness**: 200-250 HV **Special Characteristics:** - Excellent spring properties at high temperatures - Maintains dimensional stability under thermal cycling - Good creep resistance in thin sections - Consistent properties across entire coil --- #### 5. International Standards & Specifications | Standard | Description | Application | |----------|-------------|-------------| | **AMS 5537** | Sheet, strip, and foil | Aerospace applications | | **ASTM F90** | Wrought cobalt alloy | Material specification | | **ASME SB-574** | Thin sheet and foil | Pressure applications | | **UNS R30605** | Correct UNS designation | All forms | | **MIL-S-22499** | Shim stock | Military applications | --- #### 6. Product Applications **Aerospace & Defense:** - Turbine case seals and gaskets - Combustor section shims - Exhaust system seals - Thermal barrier mounting shims - Compressor blade tip seals **Power Generation:** - Gas turbine clearance control shims - Heat exchanger sealing elements - Boiler and furnace gaskets - Turbine casing alignment shims **Industrial Applications:** - High-temperature furnace gaskets - Chemical processing equipment seals - Heat treatment fixture spacers - Precision instrumentation shims **Electronics & Specialized:** - High-temperature electrical insulation - Vacuum furnace components - Semiconductor processing fixtures - Laboratory equipment shims --- #### 7. Product Specifications **Foil Products:** - **Thickness**: 0.025-0.15 mm (±0.005 mm) - **Width**: 50-600 mm (±0.1 mm) - **Condition**: Annealed or hard temper - **Surface**: Bright finish or special coatings **Shim Stock:** - **Thickness**: 0.15-2.0 mm (±0.01 mm) - **Sheet Size**: 300x300mm to 1200x2400mm - **Tolerance**: Commercial or precision grades - **Packaging**: Individual sheets or laminated packs **Special Configurations:** - Pre-cut shim packs - Laminated shim assemblies - Perforated materials - Embossed or corrugated patterns - Custom shapes and sizes --- #### 8. Fabrication & Handling **Forming Characteristics:** - Excellent for bending and light forming - Suitable for stamping and blanking - Can be welded using TIG and laser methods - Annealing recommended between severe forming operations **Storage & Handling:** - Store in clean, dry conditions - Protect from surface contamination - Handle with clean gloves - Stack flat to prevent deformation **Quality Assurance:** - 100% dimensional verification - Surface quality inspection - Lot traceability maintained - Certificates of compliance provided --- #### 9. Competitive Advantages - Maintains dimensional stability at extreme temperatures - Superior to nickel alloys in sulfidation resistance - Better oxidation resistance than iron-based superalloys - Excellent balance of strength and formability - Consistent performance across temperature range - Available in precision thicknesses --- **Important Note**: This datasheet provides accurate technical data for genuine **Alloy 25/L605/Haynes 25 Foil & Shim Stock (UNS R30605)**. Always verify material certifications against AMS 5537 for critical applications. Consult with our technical team for specific application requirements 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 2220 gallon liquid totes Special package is available on request.