Alloy X,Hastelloy X Forgings,UNS N06002,E FORU

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

### **Product Datasheet: Alloy X / Hastelloy® X Forgings (UNS N06002)** **Overview** **Alloy X**, commercially known as **Hastelloy® X**, is a nickel-chromium-iron-molybdenum superalloy specifically engineered for extreme high-temperature service. Designated as **UNS N06002**, this solid-solution strengthened nickel-based alloy offers exceptional oxidation resistance and high-temperature strength. The **forged** product form of Hastelloy X provides superior mechanical properties, enhanced grain structure, and improved directional strength compared to cast or wrought forms, making it ideal for the most demanding high-stress applications up to **1200°C (2200°F)**. --- ### **1. Chemical Composition** The chemical composition of Hastelloy X (UNS N06002) forgings conforms to the following specifications (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 for Hastelloy X forgings: | 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 mechanical properties for solution annealed Hastelloy X forgings: | Property | Typical Value | |----------|---------------| | **Tensile Strength** | 690 - 930 MPa (100 - 135 ksi) | | **Yield Strength (0.2% Offset)** | 345 - 655 MPa (50 - 95 ksi) | | **Elongation** | 35 - 55% | | **Reduction of Area** | 45 - 65% | | **Hardness (Rockwell B)** | 90 - 105 HRB | * **Forging Advantages**: - Superior grain flow characteristics - Enhanced fatigue resistance - Improved impact strength - Better overall mechanical properties compared to cast products - Elimination of porosity and internal defects --- ### **4. International Standards** Hastelloy X (UNS N06002) forgings comply with the following international standards: | Standard Body | Standard Designation | Specification | |---------------|----------------------|--------------| | **ASTM International** | **ASTM B564** | Nickel Alloy Forgings | | **ASME** | **ASME SB-564** | Pressure Vessel Components | | **Aerospace Material Specification** | **AMS 5759** | Bars, Forgings, and Rings | | **ASTM International** | **ASTM B472** | Forged or Rolled Alloy Pipe Flanges | | **European Standard** | **EN 10204** | Metallic Products - Types of Inspection Documents | --- ### **5. Product Applications & Forging Types** **Common Forging Types:** * **Open-Die Forgings**: Large components, custom shapes, and pre-forms * **Closed-Die Forgings**: Complex net-shape or near-net-shape components * **Rolled Rings**: Circular components for high-temperature applications * **Press Forgings**: High-volume production components **Industry Applications:** * **Aerospace & Defense:** * Jet engine turbine components * Afterburner parts * Rocket motor components * Aircraft structural components * **Industrial Furnace & Heat Treatment:** * Furnace rollers and rails * Heat treatment fixtures * Retort supports and hangers * Process hardware components * **Chemical & Petrochemical:** * High-temperature valve bodies * Pump casings and impellers * Reactor internals * Manifold systems * **Power Generation:** * Gas turbine components * Steam turbine parts * Nuclear reactor internals * High-temperature fasteners --- ### **6. Manufacturing Process** * **Forging Temperature**: 1149-1232°C (2100-2250°F) * **Solution Annealing**: 1177°C (2150°F) followed by rapid cooling * **Quality Control**: Ultrasonic testing, dye penetrant inspection * **Heat Treatment**: Full solution annealing for optimal properties * **Surface Finish**: Machined, ground, or as-forged surfaces available --- ### **7. Quality Assurance** * **Material Traceability**: Heat number tracking throughout manufacturing * **Non-Destructive Testing**: UT, PT, MT, RT as required * **Certification**: EN 10204 3.1/3.2 material certificates * **Compliance**: ASME, ASTM, and customer-specific requirements --- **Disclaimer:** *Hastelloy® is a registered trademark of Haynes International. This information is for reference purposes only. Mechanical properties may vary with forging size, shape, and heat treatment parameters. For critical applications, always consult the appropriate material specification and obtain certified test reports from the manufacturer. Proper forging techniques and heat treatment are essential to achieve the desired mechanical properties and microstructural characteristics.*

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 1867 gallon liquid totes Special package is available on request.