Alloy X,Hastelloy X ,UNS N06002,E FORU

British Specs:，American Specs:AMS 5755 Bar and Forgings AMS 5786 Welding Wire，German Specs:

### **Technical Datasheet: Alloy X / Hastelloy® X (UNS N06002)** **Alloy X**, commercially known as **Hastelloy® X**, is a nickel-chromium-iron-molybdenum alloy specifically designed for exceptional high-temperature performance. Registered under the unified numbering system as **UNS N06002**, this solid-solution strengthened nickel-based superalloy offers an outstanding combination of high-temperature strength, oxidation resistance, and fabricability, making it a preferred choice for the most demanding elevated temperature applications. --- ### **1. Chemical Composition** The typical chemical composition of Hastelloy X (UNS N06002) is as follows (balance is Nickel): | Element | Content (%) | | :--- | :--- | | **Nickel (Ni)** | Balance | | **Chromium (Cr)** | 20.5 - 23.0 | | **Iron (Fe)** | 17.0 - 20.0 | | **Molybdenum (Mo)** | 8.0 - 10.0 | | **Cobalt (Co)** | 0.5 - 2.5 | | **Tungsten (W)** | 0.2 - 1.0 | | **Carbon (C)** | 0.05 - 0.15 | | **Manganese (Mn)** | ≤ 1.00 | | **Silicon (Si)** | ≤ 1.00 | | **Phosphorus (P)** | ≤ 0.040 | | **Sulfur (S)** | ≤ 0.030 | | **Boron (B)** | ≤ 0.010 | * **Functional Role of Key Elements:** * **Ni (Nickel)**: Forms the austenitic matrix, providing fundamental corrosion resistance and microstructural stability at high temperatures. * **Cr (Chromium)**: Enables formation of a protective chromium oxide layer (Cr₂O₃), delivering exceptional oxidation resistance. * **Mo & W (Molybdenum & Tungsten)**: Provide solid-solution strengthening, significantly enhancing high-temperature creep resistance and strength. * **C (Carbon)**: Contributes to elevated temperature strength through solid solution strengthening. --- ### **2. Physical Properties** Characteristic physical properties at room temperature: | Property | Metric Value | Imperial Value | | :--- | :--- | :--- | | **Density** | 8.22 g/cm³ | 0.297 lb/in³ | | **Melting Point** | 1260 - 1355 °C | 2300 - 2475 °F | | **Specific Heat (20°C)** | 455 J/kg·K | 0.109 Btu/lb·°F | | **Thermal Conductivity (20°C)** | 11.9 W/m·K | 82.7 Btu·in/hr·ft²·°F | | **Mean Coefficient of Thermal Expansion (20-1000°C)** | 14.0 μm/m·°C | 7.8 x10⁻⁶ in/in·°F | | **Modulus of Elasticity** | 205 GPa | 29.7 x 10⁶ psi | --- ### **3. Mechanical Properties** Typical room temperature mechanical properties for annealed material: | Property | Typical Value | | :--- | :--- | | **Tensile Strength** | ≥ 655 MPa (95 ksi) | | **Yield Strength (0.2% Offset)** | ≥ 310 MPa (45 ksi) | | **Elongation (in 50mm)** | ≥ 40% | | **Reduction of Area** | ≥ 50% | * **High-Temperature Performance**: Hastelloy X retains excellent mechanical properties and exhibits outstanding resistance to oxidation, carburization, and sulfidation at temperatures up to 1200°C (2200°F). It shows remarkable creep rupture strength and thermal fatigue resistance. --- ### **4. International Standards** Hastelloy X (UNS N06002) is covered by numerous international standards: | Standard Body | Standard Designation | Product Form | | :--- | :--- | :--- | | **ASTM International** | **ASTM B435** | Plate, Sheet, and Strip | | **ASTM International** | **ASTM B572** | Rod/Bar | | **ASTM International** | **ASTM B622** | Seamless Pipe and Tube | | **ASTM International** | **ASTB B564** | Forgings | | **ASME** | **ASME SB-435, SB-572, etc.** | For pressure vessel components | | **Aerospace Material Specification** | **AMS 5759** | Bars, Forgings, and Rings | | **European Standard** | **EN 10095 / NiCr22Fe18Mo** | Heat resisting steels and nickel alloys | --- ### **5. Product Applications** Hastelloy X is specified for the most demanding high-temperature applications across multiple industries: * **Aerospace & Defense:** * Gas turbine engine components (combustion cans, liners, transition ducts) * Afterburner components * Jet engine exhaust systems * Rocket motor components * **Industrial Furnace & Heat Treatment:** * Radiant tubes, retorts, and muffles * Heat treatment fixtures and baskets * Furnace rolls and rails * Heat exchanger components * **Chemical & Petrochemical Processing:** * Ethylene cracking furnace tubes * Reformer components * High-temperature reactor internals * Process piping and transfer lines * **Power Generation:** * Gas turbine components (combustion cans, transition pieces) * Heat recovery steam generator systems * High-temperature bolting and fasteners * **Industrial Gas Turbines:** * Combustion chambers * Transition ducts * Hot gas path components --- ### **6. Key Characteristics** * **Excellent oxidation resistance** to 1200°C (2200°F) * **Good carburization and sulfidation resistance** * **Exceptional high-temperature strength** * **Good fabricability and weldability** * **Outstanding thermal fatigue resistance** * **Excellent stress-rupture properties** --- **Disclaimer:** *Hastelloy® is a registered trademark of Haynes International. This information is for reference purposes only and based on typical industry data. For specific design and procurement, always consult the relevant material standards and the manufacturer's technical data sheets for certified properties. Performance in specific applications should be verified through appropriate testing.*

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 1858 gallon liquid totes Special package is available on request.