AL 601™ Nickel-Base Alloy,DIN 2.4851;1

### **Product Datasheet: AL-601™ / INCONEL® 601 (UNS N06601)** **A Nickel-Chromium-Iron-Aluminum Alloy for High-Temperature Applications** --- #### **1. Overview** **AL-601™**, commercially known as **INCONEL® 601**, is a nickel-chromium-iron-aluminum alloy designed for excellent high-temperature strength and outstanding resistance to oxidation and other corrosive media. The aluminum addition in its composition provides exceptional oxidation resistance through the formation of a protective oxide scale at temperatures up to 1250°C (2280°F). This alloy combines high mechanical strength with good workability and weldability, making it suitable for a wide range of elevated temperature applications in thermal processing, power generation, and aerospace industries. --- #### **2. Chemical Composition (Typical Weight %)** | Element | Content (%) | Role in the Alloy | | :--- | :--- | :--- | | **Nickel (Ni)** | Balance (~58.0-63.0) | Provides the fundamental high-temperature strength and corrosion resistance | | **Chromium (Cr)** | ~21.0-25.0 | Confers excellent oxidation and carburization resistance | | **Iron (Fe)** | ~8.0-11.0 | Provides solid solution strengthening | | **Aluminum (Al)** | ~1.0-1.7 | Forms protective alumina scale for enhanced oxidation resistance | | **Copper (Cu)** | ≤ 1.0 | Residual element | | **Manganese (Mn)** | ≤ 1.5 | Improves hot workability | | **Carbon (C)** | ≤ 0.10 | Enhances high-temperature strength | | **Silicon (Si)** | ≤ 0.50 | Residual element | --- #### **3. Physical Properties (Typical)** | Property | Value / Condition | | :--- | :--- | | **Density** | 8.11 g/cm³ (0.293 lb/in³) | | **Melting Range** | 1360-1410 °C (2480-2570 °F) | | **Thermal Expansion Coefficient** | 14.2 μm/m·°C (20-1000°C) | | **Thermal Conductivity** | 11.8 W/m·K (at 100°C) | | **Modulus of Elasticity** | 203 GPa (29.4×10⁶ psi) at 20°C | | **Electrical Resistivity** | 1.18 μΩ·m | --- #### **4. Mechanical Properties (Annealed Condition)** **Room Temperature Properties:** * **Tensile Strength**: 655-760 MPa (95-110 ksi) * **Yield Strength (0.2% Offset)**: 275-345 MPa (40-50 ksi) * **Elongation**: 35-45% **Elevated Temperature Performance:** * Maintains excellent mechanical strength and oxidation resistance up to 1250°C (2280°F) * Good creep and rupture strength at temperatures up to 1150°C (2100°F) --- #### **5. Corrosion Resistance** AL-601 demonstrates superior performance in various demanding environments: * **High-Temperature Oxidation**: Outstanding resistance to scaling and oxidation up to 1250°C * **Carburizing Environments**: Excellent resistance to carburization in hydrocarbon atmospheres * **Sulfur-Bearing Atmospheres**: Good resistance to sulfur compounds at elevated temperatures * **Cyclic Oxidation**: Superior performance under thermal cycling conditions * **Nitriding Resistance**: Good resistance to nitriding atmospheres --- #### **6. Product Applications** **Thermal Processing Industry:** * Radiant tubes and furnace muffles * Heat treatment baskets and fixtures * Rollers and conveyor belts * Recuperators and heat exchangers **Aerospace Industry:** * Combustion chamber components * Afterburner parts * Turbine seals and rings * Exhaust system components **Power Generation:** * Heat exchangers and superheater tubes * Combustion cans and transition ducts * Thermal reactor systems **Other Applications:** * Petrochemical processing equipment * Waste incineration systems * Glass manufacturing components --- #### **7. International Standards** * **DIN/Werkstoff Nr.**: 2.4851 * **ASTM Specifications**: * **ASTM B-168**: Plate, Sheet, and Strip * **ASTM B166**: Rod and Bar * **ASTM B167**: Seamless Pipe and Tube * **Aerospace Material Specification**: * **AMS 5870**: Sheet, Strip, and Plate * **Additional Certifications**: * ASME Boiler and Pressure Vessel Code * ISO 6208 for wrought nickel alloys * Various European pressure equipment directives --- **Technical Note:** The information provided represents typical values and characteristics. Actual properties may vary based on manufacturing processes, heat treatment, and specific product form. For critical applications, consult the most recent edition of relevant material specifications and manufacturer's technical data. *Note: This datasheet describes AL-601 (UNS N06601) alloy. Please ensure proper material identification as this is different from AL-600 (UNS N06600) alloy.* *INCONEL is a registered trademark of Special Metals Corporation. AL-601 is understood to be a related trademark for this alloy composition.*

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 3381 gallon liquid totes Special package is available on request.