Alloy X,Hastelloy X Fittings,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 Fittings (UNS N06002)** **Overview** **Alloy X**, commercially known as **Hastelloy® X**, is a nickel-chromium-iron-molybdenum superalloy designed for extreme high-temperature service. Designated as **UNS N06002**, this solid-solution strengthened nickel-based alloy offers exceptional oxidation resistance and high-temperature strength. **Hastelloy X fittings** are precision-engineered components designed to maintain system integrity under thermal cycling, pressure stresses, and aggressive chemical environments, performing reliably at temperatures up to **1200°C (2200°F)**. --- ### **1. Chemical Composition** The chemical composition of Hastelloy X (UNS N06002) fittings 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)**: Provides austenitic matrix stability and corrosion resistance * **Cr (Chromium)**: Forms protective oxide layer for oxidation resistance * **Mo & W (Molybdenum & Tungsten)**: Enhance solid-solution strengthening and creep resistance * **C (Carbon)**: Contributes to elevated temperature strength --- ### **2. Physical Properties** Characteristic physical properties for Hastelloy X fittings: | 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 Hastelloy X fittings: | Property | Typical Value | |----------|---------------| | **Tensile Strength** | 655 - 895 MPa (95 - 130 ksi) | | **Yield Strength (0.2% Offset)** | 310 - 620 MPa (45 - 90 ksi) | | **Elongation** | 40 - 60% | | **Hardness (Rockwell B)** | 85 - 100 HRB | * **High-Temperature Performance**: Hastelloy X fittings maintain excellent mechanical integrity and show outstanding resistance to oxidation, carburization, and sulfidation at temperatures up to 1200°C (2200°F). --- ### **4. International Standards** Hastelloy X fittings conform to these international standards: | Standard Body | Standard Designation | Fitting Type | |---------------|----------------------|--------------| | **ASTM International** | **ASTM B366** | Wrought Alloy Fittings | | **ASME** | **ASME SB-366** | Pressure Vessel Fittings | | **ASME B16.9** | **ASME B16.9** | Factory-Made Wrought Buttwelding Fittings | | **ASME B16.11** | **ASME B16.11** | Forged Steel Fittings, Socket-Welding and Threaded | | **MSS** | **MSS SP-43** | Wrought Stainless Steel Fittings | --- ### **5. Product Applications & Types** **Common Fitting Types:** * **Butt-Weld Fittings**: Elbows (45°, 90°, 180°), Tees, Reducers, Caps * **Socket-Weld Fittings**: Unions, Elbows, Tees, Couplings * **Threaded Fittings**: Nipples, Couplings, Elbows, Tees * **Flanges**: Slip-on, Weld Neck, Blind, Socket Weld * **Special Fittings**: Instrumentation connectors, thermowell fittings **Industry Applications:** * **Chemical & Petrochemical Processing:** * Ethylene cracking furnace transfer lines * Reformer unit piping systems * High-temperature reactor connections * Corrosive chemical processing lines * **Power Generation:** * Gas turbine exhaust systems * High-temperature steam lines * Heat recovery steam generator systems * Boiler and superheater connections * **Industrial Furnace & Heat Treatment:** * Radiant tube connections * Combustion system piping * Heat exchanger manifolds * Process gas handling systems * **Aerospace & Defense:** * Engine test stand piping * High-temperature hydraulic systems * Exhaust ducting components --- ### **6. Fabrication & Quality Assurance** * **Manufacturing Process**: Hot forging, machining, and heat treatment * **Heat Treatment**: Solution annealed at 1177°C (2150°F) * **Testing**: 100% dimensional inspection, PMI verification * **Certification**: EN 10204 3.1/3.2, NACE MR0175 compliant * **Surface Treatment**: Pickling and passivation available --- ### **7. Pressure-Temperature Ratings** Hastelloy X fittings maintain excellent pressure containment capabilities across their entire temperature range, with derating factors applied according to ASME B16.34 for elevated temperature service. --- **Disclaimer:** *Hastelloy® is a registered trademark of Haynes International. Fitting performance depends on proper design, installation, and adherence to applicable codes and standards. Always consult the appropriate material specification and obtain certified documentation from the manufacturer for critical applications.*

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 1866 gallon liquid totes Special package is available on request.