Alloy R41,Udimet alloy R41 Forgings,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 Forgings (UNS N07041)** **1.0 Product Overview** Udimet Alloy R41 Forgings (UNS N07041) represent the highest quality product form of this precipitation-hardenable nickel-chromium-cobalt superalloy. Through controlled forging processes, the material develops optimized grain flow and superior mechanical properties, making it ideal for the most demanding high-temperature structural applications. Forgings maintain exceptional strength, creep resistance, and oxidation stability at temperatures up to 980°C (1800°F), providing reliable performance in critical aerospace and industrial components. **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 | - | | 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 Typical Forging Properties (Solution Annealed & Aged)** - Tensile Strength: 1275-1410 MPa (185-205 ksi) - Yield Strength (0.2% Offset): 1070-1170 MPa (155-170 ksi) - Elongation: 10-18% - Reduction in Area: 15-25% - Hardness: 38-44 HRC **4.2 Elevated Temperature Capability** - Excellent creep rupture strength up to 980°C (1800°F) - Maintains 70% of room temperature strength at 870°C (1600°F) - Superior low-cycle fatigue performance - Outstanding thermal fatigue resistance **5.0 Heat Treatment** - **Solution Treatment:** 1065-1080°C (1950-1975°F) - **Forging Preheat:** 1095-1150°C (2000-2100°F) - **Aging Cycle:** 760°C/16h + 650°C/16h (1400°F/16h + 1200°F/16h) - **Stress Relief:** Applied after rough machining **6.0 Product Applications** **6.1 Aerospace & Defense** - Jet engine turbine disks and hubs - Turbine blades and vanes - Compressor disks and spacers - Afterburner components - Missile body sections **6.2 Power Generation** - Gas turbine rotor components - Turbine wheels and shafts - Compressor disks - High-temperature valve bodies - Nuclear reactor core components **6.3 Industrial Processing** - High-temperature fasteners - Chemical reactor components - Hot work tooling - Extrusion dies and components **7.0 Forging Processes** - **Open Die Forgings:** Large, simple shapes - **Closed Die Forgings:** Complex, near-net shapes - **Rolled Rings:** Circular components - **Isothermal Forgings:** Precision aerospace components - **Press Forgings:** Controlled deformation rates **8.0 International Standards & Specifications** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | ASTM International | ASTM B637 | Precipitation-Hardening Nickel Alloy Forgings | | AMS | AMS 5707 | Bars, Forgings, and Rings | | AMS | AMS 5712 | Forgings and Rings, Solution Treated | | ASME | SB637 | Boiler and Pressure Vessel Code | | ISO | ISO 13665 | Nickel Alloy Forgings | | UNS | N07041 | Unified Numbering System | **9.0 Available Forging Types** - **Disk Forgings:** 150 mm to 1500 mm diameter - **Shaft Forgings:** Up to 3000 mm length - **Ring Forgings:** 200 mm to 2500 mm OD - **Block Forgings:** Various dimensions - **Custom Shapes:** Engineered to customer requirements **10.0 Quality Assurance** - **Ultrasonic Testing:** Per ASTM A388 - **Liquid Penetrant Inspection:** Per AMS 2647 - **Microstructure Control:** Grain size, inclusion rating - **Mechanical Testing:** Longitudinal and transverse properties - **Traceability:** Full documentation from melt to finished forging **11.0 Manufacturing Advantages** - Optimized grain flow for superior fatigue performance - Reduced material waste compared to machining from bar - Improved mechanical properties through worked structure - Ability to produce complex geometries - Consistent quality through controlled processes **12.0 Machining Considerations** - Best machined in solution-annealed condition - Requires rigid equipment and positive rake tools - Adequate cooling essential - Final machining after aging treatment **13.0 Performance Characteristics** - Excellent structural integrity at high temperatures - Superior resistance to thermal shock - Good weldability for repair and fabrication - Outstanding corrosion and oxidation resistance Udimet Alloy R41 Forgings provide the ultimate combination of high-temperature strength, structural reliability, and performance consistency for critical rotating and stationary components in extreme environments. The forging process enhances the inherent properties of this premium superalloy, making it the material of choice for applications where failure is not an option.

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 2335 gallon liquid totes Special package is available on request.