Alloy R41,Udimet alloy R41 Foil,Shim,UNS N07041,E FORU

British Specs:，American Specs: AMS 5545 Sheet, Strip and Plate AMS 5712 Bars and Forgings AMS 5713 Bars and Forgings AMS 5800 Welding Wire，German Specs:

**Technical Data Sheet: Udimet Alloy R41 Foil & Shim (UNS N07041)** **1.0 Product Overview** Udimet Alloy R41 Foil and Shim (UNS N07041) represent the thin-gauge product forms of this premium precipitation-hardenable nickel-chromium-cobalt superalloy. These precision-engineered materials combine exceptional high-temperature strength with precise dimensional control, making them ideal for critical sealing, spacing, and thermal management applications in extreme environments up to 980°C (1800°F). **2.0 Chemical Composition** | Element | Content (%) | Primary Function | |---------|-------------|------------------| | Ni | Balance | Austenitic Matrix | | Cr | 18.0-20.0 | Oxidation Resistance | | Co | 10.0-12.0 | Solid Solution Strengthening | | Mo | 9.0-10.5 | Solid Solution Strengthening | | Ti | 3.0-3.5 | Gamma Prime Former (Ni₃Ti) | | Al | 1.4-1.8 | Gamma Prime Former (Ni₃Al) | | Fe | 5.0 max | - | | C | 0.06-0.12 | Carbide Formation | | B | 0.003-0.010 | Grain Boundary Strengthening | **3.0 Physical Properties** | Property | Metric Value | Imperial Value | Condition | |----------|--------------|----------------|-----------| | Density | 8.25 g/cm³ | 0.298 lb/in³ | Room Temperature | | Melting Range | 1320-1410°C | 2410-2570°F | - | | Thermal Conductivity | 10.7 W/m·K | 74.0 Btu·in/(hr·ft²·°F) | 21°C | | Mean CTE | 13.5 × 10⁻⁶/°C | 7.5 × 10⁻⁶/°F | 20-650°C | | Modulus of Elasticity | 216 GPa | 31.4 × 10⁶ psi | Room Temperature | **4.0 Mechanical Properties** **4.1 Foil Properties (Thickness: 0.001" - 0.005")** - Tensile Strength: 1100-1300 MPa (160-190 ksi) - Yield Strength (0.2% Offset): 900-1100 MPa (130-160 ksi) - Elongation: 8-15% - Hardness: 32-38 HRC **4.2 Shim Properties (Thickness: 0.006" - 0.060")** - Tensile Strength: 1200-1350 MPa (175-195 ksi) - Yield Strength (0.2% Offset): 1000-1150 MPa (145-165 ksi) - Elongation: 10-20% - Hardness: 34-40 HRC **5.0 Product Specifications** **5.1 Foil Specifications** - **Thickness Range:** 0.025 mm to 0.125 mm (0.001" to 0.005") - **Width Range:** 50 mm to 300 mm (2" to 12") - **Standard Tolerance:** ±0.005 mm (±0.0002") - **Surface Finish:** Bright annealed, rolled finish **5.2 Shim Specifications** - **Thickness Range:** 0.15 mm to 1.5 mm (0.006" to 0.060") - **Width Range:** Up to 600 mm (24") - **Standard Tolerance:** ±0.01 mm (±0.0004") - **Available Forms:** Plain, pre-cut shapes, custom configurations **6.0 Manufacturing Processes** **6.1 Production Methods** - Precision cold rolling - Intermediate annealing - Surface conditioning - Slitting and shearing - Heat treatment in controlled atmosphere **6.2 Quality Control** - 100% thickness verification - Surface defect inspection - Dimensional accuracy checking - Mechanical property testing **7.0 Heat Treatment** **7.1 Standard Treatment** - Solution Annealing: 1065-1080°C (1950-1975°F) - Aging: 760°C/16 hours + 650°C/16 hours - Atmosphere controlled to prevent oxidation **7.2 Special Considerations** - Reduced aging times for thin sections - Special fixtures to prevent distortion - Controlled cooling rates **8.0 Product Applications** **8.1 Aerospace & Defense** - Turbine case sealing shims - Combustion chamber seals - Exhaust system gaskets - Thermal protection layers - Vibration dampening spacers **8.2 Power Generation** - Gas turbine clearance control shims - Heat shield components - High-temperature gaskets - Insulation spacers **8.3 Industrial Applications** - Furnace retort seals - Heat treatment fixture spacers - High-temperature gaskets - Thermal management components **9.0 International Standards & Specifications** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | ASTM International | ASTM B906 | Nickel Alloy Foil and Thin Strip | | AMS | AMS 5545 | Sheet, Strip, and Plate | | MIL Standard | MIL-R-20166 | Rolled Superalloy Sheet and Plate | | DIN Standard | DIN 17752 | Nickel Alloy Thin Sheet | | UNS | N07041 | Unified Numbering System | **10.0 Fabrication Characteristics** **10.1 Forming** - Good formability in annealed condition - Can be stamped, blanked, and formed - Suitable for deep drawing applications - Springback compensation required **10.2 Joining** - Weldable using GTAW and resistance methods - Braze compatible with nickel-based filler metals - Adhesive bonding possible with surface preparation **11.0 Quality Assurance** **11.1 Testing Requirements** - Dimensional verification - Surface quality inspection - Mechanical property testing - Chemical composition verification **11.2 Certification** - Mill Test Certificates per EN 10204 3.1 - Material traceability - Heat treatment certification - Compliance certificates **12.0 Packaging & Handling** **12.1 Special Packaging** - Interleaved with protective material - Moisture-proof wrapping - Rigid packaging to prevent damage - Clean room packaging available **12.2 Handling Requirements** - Clean glove handling recommended - Storage in controlled environment - Protection from mechanical damage - Avoidance of contamination Udimet Alloy R41 Foil and Shim products offer unparalleled performance for precision applications requiring high-temperature strength, oxidation resistance, and exact dimensional control. Their unique combination of properties makes them essential for critical sealing and spacing applications in the most demanding aerospace, power generation, and industrial environments.

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 2337 gallon liquid totes Special package is available on request.