Alloy X,Inconel HX Tube,UNS N06002,E FORU

British Specs:，American Specs:AMS 5536 Sheet, Strip and Plate AMS 5754 Bar and Forgings AMS 5798 Welding Wire AMS 5587 Seamless Tube AMS 5588 Welded Tube，German Specs:

### **Product Datasheet: Alloy X / Inconel® HX Tube (UNS N06002)** **Alloy X** (commercially known as **Inconel® HX** and standardized as **UNS N06002**) is a nickel-chromium-iron-molybdenum superalloy specifically formulated for extreme high-temperature service. It offers an exceptional combination of high strength, outstanding resistance to oxidation, carburization, and a wide range of corrosive atmospheres up to 1200°C (2200°F). The **tube** product form of Inconel HX is designed for critical applications involving heat exchange, the conveyance of aggressive media, and as structural components in high-temperature environments. It is available in both **seamless** and **welded** forms, offering versatility for different pressure, temperature, and corrosion requirements. --- ### **1. Chemical Composition** The typical chemical composition of Inconel HX (UNS N06002) tube 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 | * **Key Role of Elements:** * **Ni (Nickel):** Provides the austenitic matrix, ensuring exceptional corrosion resistance and microstructural stability at high temperatures. * **Cr (Chromium):** Imparts superior resistance to oxidation and sulfidation, essential for furnace atmospheres. * **Mo & W (Molybdenum & Tungsten):** Act as potent solid-solution strengtheners, significantly enhancing high-temperature creep and tensile strength. * **C (Carbon):** Contributes to elevated temperature strength. --- ### **2. Physical Properties** Typical physical properties for Inconel HX tube 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 for Annealed Condition)** Mechanical properties for tube are typically verified through tests on specimens from the tube or separately finished bars. The following are typical minimum values for the annealed condition. | Property | Typical Value | | :--- | :--- | | **Tensile Strength** | ≥ 655 MPa (95 ksi) | | **Yield Strength (0.2% Offset)** | ≥ 310 MPa (45 ksi) | | **Elongation (in 50mm)** | ≥ 40% | * **High-Temperature Performance:** Alloy X tube retains excellent mechanical strength and resistance to creep (deformation under sustained load) at elevated temperatures, making it ideal for pressurized and load-bearing applications in thermal processing equipment. --- ### **4. International Standards (Tubular Products)** Inconel HX (UNS N06002) tube is covered by the following key international standards, with a clear distinction between seamless and welded forms. | Standard Body | Standard Designation | Title / Scope | | :--- | :--- | :--- | | **ASTM International** | **ASTM B622 / B622M** | Standard Specification for **Seamless** Pipe and Tube | | **ASTM International** | **ASTM B626 / B626M** | Standard Specification for **Welded** Tube | | **ASTM International** | **ASTM B619 / B619M** | Standard Specification for **Welded** Pipe (from welded tube) | | **ASME** | **ASME SB-622 / SB-626 / SB-619** | Equivalent ASTM standards adopted for ASME Boiler and Pressure Vessel Code use. | | **Aerospace Material Specification** | **AMS 5759** | Bars, Forgings, and Rings (may be applicable for tube fittings) | | **European Standard** | **EN 10216-5** | Seamless steel tubes for pressure purposes - Technical delivery conditions Part 5: Stainless steel tubes | | **UNS** | **N06002** | Unified Numbering System | --- ### **5. Product Applications** Inconel HX tube is specified for the most demanding high-temperature applications where resistance to both pressure and environment is critical. * **Industrial Furnace & Heat Treatment:** * **Radiant Tubes:** The premier application; used in carburizing, neutral hardening, and annealing furnaces for carrying combustion gases. * **Heat Exchanger Tubes:** In recuperators and convectors to preheat combustion air using high-temperature exhaust gases. * **Muffles & Retorts:** As sealed containers to protect workloads from furnace atmospheres. * **Thermocouple Protection Sheaths:** For housing temperature sensors in corrosive and high-temperature environments. * **Chemical & Petrochemical Processing:** * **Ethylene Cracking Furnace Tubes:** A critical application where tubes withstand extreme temperatures, internal pressure, and a severe carburizing environment. * **Reformer Tubes:** In hydrogen and ammonia plants for steam-methane reforming processes. * **Transfer Line Exchangers:** For cooling high-temperature process streams. * **Power Generation:** * **Superheater and Reheater Tubes:** In specialized high-temperature boilers and heat recovery steam generators (HRSGs). * **Gas Turbine Components:** For certain high-temperature air or gas circuits. * **Aerospace & Nuclear:** * **High-Temperature Fluid Conveyance Systems.** * **Structural Components in high-temperature sections of jet engines.** --- **Disclaimer:** *Inconel® is a registered trademark of Special Metals Corporation, a PCC company. This information is for reference purposes and is based on typical industry data. The selection of seamless vs. welded tube is critical and depends on the specific application requirements, including pressure, temperature, and corrosion factors. Always consult the relevant material standard and the manufacturer's certified test report 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 1849 gallon liquid totes Special package is available on request.