Alloy R41,Udimet alloy R41 Tube,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 Tube (UNS N07041)** **1.0 Product Overview** Udimet Alloy R41 Tube (UNS N07041) is a high-strength, precipitation-hardenable nickel-chromium-cobalt superalloy produced in tubular form. Specifically engineered for extreme service conditions, this alloy maintains exceptional mechanical properties and oxidation resistance at temperatures up to 980°C (1800°F). The tubular product form is optimized for applications requiring efficient fluid conveyance, structural members, and heat exchange in aggressive environments where pressure integrity and thermal stability are critical. **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 Strengthener | | Mo | 9.0-10.5 | Solid Solution Strengthener | | 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 Former | | B | 0.003-0.010 | Grain Boundary Strengthener | | 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 | RT | | Melting Range | 1320-1410°C | 2410-2570°F | - | | Electrical Resistivity | 1.23 μΩ·m | 48.6 μΩ·in | 21°C (70°F) | | Thermal Conductivity | 10.7 W/m·K | 74.0 Btu·in/(hr·ft²·°F) | 21°C (70°F) | | Mean CTE | 13.5 × 10⁻⁶/°C | 7.5 × 10⁻⁶/°F | 20-650°C (70-1200°F) | | Modulus of Elasticity | 216 GPa | 31.4 × 10⁶ psi | RT | **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: 12-25% - Hardness: 36-42 HRC **4.2 Elevated Temperature Properties** - Excellent creep rupture strength up to 980°C (1800°F) - Maintains 80% of room temperature strength at 870°C (1600°F) - Good fatigue resistance under thermal cycling conditions **5.0 Heat Treatment** - **Solution Treatment:** 1065-1080°C (1950-1975°F), rapid cool - **Aging Cycle:** 760°C/16h + 650°C/16h (1400°F/16h + 1200°F/16h) - **Stress Relieving:** Available for welded components **6.0 Product Applications** **6.1 Aerospace & Defense** - Jet engine hydraulic and fuel lines - Afterburner fuel injector tubes - Bleed air system components - Rocket propulsion system tubing - Aircraft structural members in high-temperature zones **6.2 Power Generation** - Heat exchanger tubing - Steam turbine bypass systems - Nuclear reactor instrumentation tubing - Combustion liner support elements **6.3 Oil & Gas** - Downhole instrumentation housings - High-pressure thermowells - Chemical injection lines - HP/HT wellhead components **6.4 Industrial Processing** - Heat treatment furnace radiant tubes - Pyroprocessing equipment - Chemical reactor tubing - Thermal processing fixtures **7.0 International Standards** | Standard Organization | Standard Number | Application | |----------------------|-----------------|-------------| | ASTM International | ASTM B622/B626 | Seamless & Welded Tube | | ASME | SB622/SB626 | Pressure Tube Applications | | AMS | AMS 5580 | Seamless Tubing Aerospace | | DIN | DIN 17751 | Nickel Alloy Tubes | | UNS | N07041 | Material Designation | | Werkstoff Nr. | 2.4972 | German Material Number | **8.0 Product Specifications** - **Size Range:** 0.5 mm to 150 mm OD (0.020" to 6") - **Wall Thickness:** 0.1 mm to 12 mm (0.004" to 0.5") - **Length:** Up to 15 meters (50 feet) continuous - **Tolerance:** To ASTM B622 or customer specifications **9.0 Manufacturing Processes** - **Seamless:** Extruded, pilgered, or drawn - **Welded:** EBW, GTAW, laser welded with cold working - **Surface Finish:** Pickled, polished, or descaled as required **10.0 Fabrication Notes** - **Welding:** GTAW with matching filler metal recommended - **Bending:** Minimum bend radius 3x OD (annealed condition) - **Machining:** Use positive rake carbide tools, heavy feeds - **Joining:** Suitable for brazing and mechanical joining **11.0 Quality Assurance** - 100% non-destructive testing (UT, ET, RT) - Hydrostatic/pneumatic pressure testing - Microstructure and grain size examination - Full material traceability and certification **12.0 Corrosion Performance** - Excellent oxidation resistance to 980°C (1800°F) - Good carburization and nitridation resistance - Suitable for sour gas environments with limitations - Maintains integrity in thermal cycling conditions Udimet Alloy R41 Tube represents the pinnacle of tubular product technology for ultra-demanding applications, offering an unmatched combination of high-temperature strength, corrosion resistance, and fabrication versatility for critical service conditions.

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 2330 gallon liquid totes Special package is available on request.