Alloy R41,Udimet alloy R41 Sheet,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 Sheet (UNS N07041)** **1.0 Product Overview** Udimet Alloy R41 Sheet (UNS N07041) is a high-strength, precipitation-hardenable nickel-chromium-cobalt superalloy supplied in thin sheet form. This product is specifically engineered for applications requiring exceptional strength-to-weight ratio, excellent oxidation resistance, and superior mechanical properties at temperatures up to 980°C (1800°F). The sheet form enables manufacturing of complex components through various forming processes while maintaining integrity in the most demanding thermal environments. **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 | | Si | 0.50 max | - | | Mn | 0.50 max | - | | Cu | 0.50 max | - | **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 | - | | Electrical Resistivity | 1.23 μΩ·m | 48.6 μΩ·in | 21°C | | Thermal Conductivity | 10.7 W/m·K | 74.0 Btu·in/(hr·ft²·°F) | 21°C | | Mean Coefficient of Thermal Expansion | 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 Typical Room Temperature Properties (Solution Annealed & Aged)** - Tensile Strength: 1240-1380 MPa (180-200 ksi) - Yield Strength (0.2% Offset): 1035-1140 MPa (150-165 ksi) - Elongation: 15-25% - Hardness: 36-42 HRC **4.2 Elevated Temperature Performance** - Excellent creep and stress rupture properties up to 980°C (1800°F) - Maintains structural integrity under thermal cycling conditions - Good fatigue resistance in high-temperature environments **5.0 Heat Treatment** - **Solution Annealing:** 1065-1080°C (1950-1975°F), rapid cool - **Aging Treatment:** 760°C/16 hours + 650°C/16 hours (1400°F/16h + 1200°F/16h) - **Stress Relieving:** Recommended after severe forming operations **6.0 Product Applications** **6.1 Aerospace & Defense** - Jet engine combustion chamber liners - Afterburner components and spray bars - Exhaust nozzle components - Heat shield elements - Aircraft structural components in high-temperature zones **6.2 Power Generation** - Gas turbine combustion sections - Heat exchanger components - Thermal protection systems - Exhaust system parts **6.3 Industrial Processing** - High-temperature furnace components - Heat treatment fixtures - Chemical processing equipment liners - Thermal processing system parts **7.0 International Standards & Specifications** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | ASTM International | ASTM B637 | Precipitation-Hardening Nickel Alloy Sheet | | AMS | AMS 5545 | Sheet, Strip, and Plate | | ASME | SB637 | Boiler and Pressure Vessel Code | | DIN | DIN 17752 | Nickel Alloy Sheet | | UNS | N07041 | Unified Numbering System | | Werkstoff Nr. | 2.4972 | German Material Number | **8.0 Available Sheet Specifications** - **Thickness Range:** 0.1 mm to 6.0 mm (0.004" to 0.250") - **Width Range:** Up to 1200 mm (48 inches) - **Length Range:** Up to 3000 mm (120 inches) - **Surface Finish:** Cold-rolled, annealed, pickled, or polished **9.0 Fabrication Characteristics** **9.1 Forming** - Good formability in solution-annealed condition - Suitable for deep drawing, bending, and stretching - Can be formed at room temperature for most applications - Hot forming possible for complex shapes **9.2 Welding** - Excellent weldability using GTAW process - Recommended filler metal: ERNiCrMo-XX series - Post-weld heat treatment required for optimum properties - Suitable for all fusion welding processes **9.3 Machining** - Best machined in solution-annealed condition - Requires positive rake angles and sharp tools - Adequate cooling and chip clearance essential - Can be sheared, punched, and blanked **10.0 Quality Assurance** - 100% dimensional verification - Surface inspection per applicable standards - Mechanical testing from representative samples - Full material traceability and certification - Compliance with aerospace quality requirements **11.0 Corrosion Performance** - Excellent oxidation resistance to 980°C (1800°F) - Good resistance to hot corrosion and sulfidation - Suitable for various corrosive environments - Maintains performance under thermal cycling conditions Udimet Alloy R41 Sheet provides an exceptional combination of high-temperature strength, oxidation resistance, and fabricability for demanding aerospace and industrial applications. Its superior performance in thin sections makes it ideal for weight-critical components operating in extreme thermal 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 2332 gallon liquid totes Special package is available on request.