Alloy X,Hastelloy X Other/Similar Specs,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 & Equivalent Specifications (UNS N06002)** **Overview** **Alloy X**, commercially known as **Hastelloy® X** and standardized as **UNS N06002**, is a nickel-chromium-iron-molybdenum superalloy designed for extreme high-temperature service. This datasheet covers the material under various international specifications and equivalent designations, providing a comprehensive reference for global procurement and engineering applications. The alloy maintains excellent performance in temperatures up to **1200°C (2200°F)** with outstanding oxidation resistance and high-temperature strength. --- ### **1. Chemical Composition** The standard chemical composition for UNS N06002 across all international specifications: | 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 | *Note: Minor variations in impurity elements may exist between different international standards.* --- ### **2. Physical Properties** Characteristic physical properties consistent across all product forms: | 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 annealed material: | Property | Typical Value Range | |----------|---------------------| | **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 | --- ### **4. International Standards & Equivalent Specifications** **United States Standards:** - **ASTM/ASME**: B435/SB-435 (Plate, Sheet, Strip) - **ASTM/ASME**: B572/SB-572 (Rod/Bar) - **ASTM/ASME**: B622/SB-622 (Seamless Tube) - **ASTM/ASME**: B564/SB-564 (Forgings) - **AMS**: 5759 (Bars, Forgings, and Rings) - **AWS**: A5.14 (Welding Electrodes) **European Standards:** - **EN 10095**: NiCr22Fe18Mo - **EN 10216-5**: Seamless Tubes - **EN 10269**: Fastener Materials - **DIN 2.4665**: Material Designation **Japanese Standards:** - **JIS G4902**: NCF 800H (Similar grade) - **JIS H4551**: Nickel Alloy Plate/Sheet **Other National Standards:** - **GB/T**: GH3536 (China) - **ISO 9724**: Nickel alloys for fasteners - **AFNOR**: NC22FeD (France) --- ### **5. Similar & Alternative Alloys** **Direct Equivalents:** - **W.Nr. 2.4665** (Germany) - **NC22FeD** (France) - **GH3536** (China) **Similar Performance Alloys:** - **Inconel 617** (UNS N06617) - Higher temperature capability - **Incoloy 800H** (UNS N08810) - Lower nickel content, good alternative - **Haynes 230** (UNS N06230) - Enhanced oxidation resistance --- ### **6. Global Applications** **Aerospace & Defense:** - Jet engine combustion chambers - Afterburner components - Rocket motor parts - Turbine components **Industrial Processing:** - Ethylene cracking furnace tubes - Heat treatment fixtures - Industrial furnace components - Process equipment **Power Generation:** - Gas turbine components - Heat exchanger tubing - High-temperature piping systems - Boiler components **Chemical Processing:** - Reactor vessels - Heat exchanger components - High-temperature piping - Process systems --- ### **7. Quality Certifications** Material is typically supplied with: - **EN 10204 3.1/3.2** Inspection Certificates - **Mill Test Certificates** - **PED 2014/68/EU** Compliance - **ASME Section VIII** Approval - **NORSOK** Approval (for offshore applications) --- ### **8. Special Notes** * **Weldability**: Excellent, using matching filler metals * **Heat Treatment**: Solution anneal at 1177°C (2150°F) * **Corrosion Resistance**: Outstanding oxidation resistance up to 1200°C * **Fabrication**: Good hot and cold working characteristics --- **Technical Note:** *This alloy is known by various commercial names including Hastelloy X, Alloy X, and NICROFER 4722 Co. While chemical compositions are generally consistent across international standards, users should verify specific requirements for their application and jurisdiction. Always consult the appropriate material standard and obtain certified test reports 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 1868 gallon liquid totes Special package is available on request.