Alloy R41,Udimet alloy R41 Fittings,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 Fittings (UNS N07041)** **1.0 Product Overview** Udimet Alloy R41 Fittings (UNS N07041) are precision-engineered components manufactured from precipitation-hardenable nickel-chromium-cobalt superalloy. These fittings are designed for high-performance fluid and gas systems operating under extreme conditions of temperature, pressure, and corrosive environments. The fittings maintain exceptional mechanical properties and oxidation resistance at temperatures up to 980°C (1800°F), making them ideal for critical applications in aerospace, power generation, and chemical processing industries. **2.0 Chemical Composition** | Element | Content (%) | Primary Function | |---------|-------------|------------------| | Ni | Balance | Austenitic Matrix | | Cr | 18.0-20.0 | Oxidation/Corrosion 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 | - | | 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 Standard Properties (Solution Annealed & Aged)** - Tensile Strength: 1240-1380 MPa (180-200 ksi) - Yield Strength (0.2% Offset): 1035-1140 MPa (150-165 ksi) - Elongation: 12-20% - Hardness: 36-42 HRC - Impact Strength: 20-35 J (15-25 ft-lb) **4.2 Pressure Ratings** - Maximum Working Pressure: 690 bar (10,000 psi) at 540°C (1000°F) - Burst Pressure: 3-4 × working pressure - Temperature-Pressure rating per ASME B16.34 **5.0 Heat Treatment** - **Solution Treatment:** 1065-1080°C (1950-1975°F) - **Aging Cycle:** 760°C/16h + 650°C/16h (1400°F/16h + 1200°F/16h) - **Stress Relieving:** Applied after machining operations **6.0 Product Applications** **6.1 Aerospace & Defense** - Jet engine fuel system fittings - Hydraulic system connectors - Bleed air system components - Missile propulsion system fittings - Spacecraft fluid handling components **6.2 Oil & Gas** - High-pressure wellhead fittings - Chemical injection fittings - Downhole tool connections - HP/HT field components **6.3 Power Generation** - Steam turbine bypass fittings - Boiler feed system components - Nuclear reactor instrumentation fittings - Gas turbine fuel system connections **7.0 Available Fitting Types** - **Butt Weld Fittings:** Elbows, tees, reducers, caps - **Socket Weld Fittings:** Unions, elbows, tees - **Threaded Fittings:** NPT, BSPT, BSPP connections - **Flanged Components:** Orifice flanges, blind flanges - **Special Fittings:** Instrumentation, manifold blocks **8.0 International Standards & Specifications** | Standard Organization | Standard Number | Application | |----------------------|-----------------|-------------| | ASTM International | ASTM B366 | Wrought Alloy Fittings | | ASME | B16.9 / B16.11 | Factory-Made Wrought Buttwelding / Socket Welding Fittings | | MSS | SP-79 / SP-97 | Socket Welding & Threaded Fittings | | AMS | AMS 5754 | Superalloy Forgings | | ISO | ISO 13665 | Nickel Alloy Pipe Fittings | | UNS | N07041 | Material Designation | **9.0 Manufacturing Processes** - **Forging:** Hot die forging for superior grain structure - **Machining:** CNC precision machining from bar stock - **Quality Control:** 100% dimensional verification - **Surface Treatment:** Passivation, pickling, or special coatings **10.0 Testing & Certification** - **Non-Destructive Testing:** Liquid penetrant, ultrasonic, radiographic - **Pressure Testing:** Hydrostatic and pneumatic tests - **Material Verification:** PMI (Positive Material Identification) - **Documentation:** Certificates of Compliance per EN 10204 3.1/3.2 **11.0 Design Features** - **Wall Thickness:** Schedule 10S to XXS available - **Size Range:** 1/8" to 12" NB (DN6 to DN300) - **Pressure Class:** 1500 lb to 4500 lb ratings - **End Connections:** Buttweld, socket weld, threaded, flanged **12.0 Corrosion Performance** - Excellent oxidation resistance to 980°C (1800°F) - Superior resistance to sulfidation and hot corrosion - Good performance in sour service environments - Excellent resistance to stress corrosion cracking **13.0 Installation & Maintenance** - **Welding:** GTAW with ERNiCrMo-XX filler recommended - **Handling:** Proper alignment and avoidance of excessive force - **Inspection:** Regular NDT during service life - **Re-torquing:** Recommended after initial heat cycles Udimet Alloy R41 Fittings provide unmatched reliability for critical high-temperature, high-pressure applications where conventional stainless steels and lower-grade nickel alloys prove inadequate. Their superior strength, corrosion resistance, and manufacturing precision make them the preferred choice for the most demanding fluid system applications across multiple industries.

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 2334 gallon liquid totes Special package is available on request.