Hastelloy X Superalloy – UNS N06002 Bar, Sheet, Pipe & Custom ForgingsAs a leading nickel alloy X manufacturer and supplier, ZYTC Alloy offers this premium alloy in a comprehensive range of product forms – bars, sheets, plates, pipes, tubes, forgings, and custom sizes. Every shipment is fully traceable, documented, and compliant with international standards including ASTM, AMS, and ASME. Nickel Alloy X (UNS N06002 / 2.4665 / GH3536) is a nickel-chromium-iron-molybdenum solid-solution-strengthened superalloy renowned for its exceptional combination of high-temperature strength, oxidation resistance, and fabricability. It maintains excellent mechanical properties from cryogenic temperatures up to 1,205°C (2,200°F), making it a preferred material for gas turbine engines, industrial furnaces, and petrochemical applications. Unlike many precipitation-hardening alloys, Hastelloy X achieves its properties through solid-solution strengthening – no age hardening required. It exhibits good ductility even after prolonged exposure to high temperatures, with resistance to oxidation, carburization, and nitriding in various atmospheres. |  |  |
Technical SpecificationsChemical Composition (Typical Values)| Element | Content (%) | Element | Content (%) |
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| Nickel (Ni) | 47.0 – 52.0 (Balance) | Cobalt (Co) | 0.50 – 2.50 | | Chromium (Cr) | 20.50 – 23.0 | Manganese (Mn) | ≤ 1.0 | | Iron (Fe) | 17.0 – 20.0 | Silicon (Si) | ≤ 1.0 | | Molybdenum (Mo) | 8.0 – 10.0 | Carbon (C) | 0.05 – 0.15 | | Tungsten (W) | 0.20 – 1.0 | Phosphorus (P) | ≤ 0.040 | | Aluminum (Al) | ≤ 0.50 | Sulfur (S) | ≤ 0.030 | | Titanium (Ti) | ≤ 0.15 | Boron (B) | ≤ 0.008 |
Chemical composition conforms to ASTM B435, B572, and AMS 5536, 5754 specifications. Actual mill test report values are provided with every shipment. Physical Properties| Property | Value |
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| Density | 8.22 – 8.28 g/cm³ | | Melting Range | 1,260 – 1,355°C (2,300 – 2,470°F) | | Modulus of Elasticity (20°C) | ~205 GPa | | Thermal Conductivity (20°C) | ~9.1 – 9.8 W/m·K | | Electrical Resistivity | ~118 – 128 μΩ·cm | | Magnetic Properties | Non-magnetic in solution-annealed condition |
Values are typical and may vary based on product form and processing. Mechanical Properties – Annealed Condition| Property | Value |
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| Tensile Strength | 110 – 135 ksi (760 – 930 MPa) | | Yield Strength (0.2% Offset) | 49 – 55 ksi (340 – 380 MPa) | | Elongation | 45 – 50% | | Suggested Operating Range | -184°C to 1,205°C (-300°F to 2,200°F) |
Properties are typical for sheet and plate forms. Actual values may vary based on product form and heat treatment condition. 
Available Product FormsZYTC Alloy offers Hastelloy X in a wide variety of product forms to meet diverse industrial requirements. | Product Form | Size Range | Specifications |
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| Round Bar | 10mm – 350mm | Hot-rolled, forged, or peeled – ASTM B572, AMS 5754 | | Sheet | 0.5mm – 6mm thick | ASTM B435, AMS 5536 | | Plate | 6mm – 50mm thick | ASTM B435, AMS 5536 | | Seamless Pipe | OD 6mm – 300mm | ASTM B622, ASME SB622 | | Welded Pipe | Custom OD and wall thickness | ASTM B619, ASME SB619 | | Seamless Tube | OD 4mm – 150mm | AMS 5587, ASTM B622 | | Welded Tube | Custom sizes | AMS 5588, ASTM B626 | | Forgings | Rings, discs, blocks, flanges | Custom per drawing – AMS 5754 | | Welding Wire | ERNiCrMo-2 | AMS 5798, AWS A5.14 |
Sizes outside these ranges may be available upon request. Please contact us to discuss your specific requirements. Custom Processing ServicesZYTC Alloy provides comprehensive custom processing services to help you get exactly what you need – reducing your downstream operations and saving valuable time.  Standards| Standard | Specification |
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| ASTM B435 | Plate, Sheet, and Strip | | ASTM B572 | Bar and Wire | | AMS 5536 | Sheet, Strip, and Plate | | AMS 5754 | Bar, Forgings, and Rings | | AMS 5587 | Seamless Tube | | AMS 5798 | Welding Wire (ERNiCrMo-2) | | ASME SB435 | Pressure Vessel Applications | | UNS | N06002 | | DIN / EN | 2.4665 | | GB/T | GH3536 / GH536 | | NACE MR0175 | Sour Service (where applicable) |
Alternative or equivalent standards are available upon request. Please contact ZYTC Alloy with your specific requirements.
ApplicationsNickel alloy X's unique combination of properties – high-temperature strength, exceptional oxidation resistance, and good fabricability – makes it the material of choice for critical applications across multiple high-performance industries. Aerospace & AviationCombustion chambers, flame holders, turbine engine components (honeycomb seals, compressor vanes, combustor casings), transition ducts, afterburner components, and exhaust systems. Industrial Furnaces & Heat TreatmentRadiant tubes, retorts, muffles, furnace rollers, catalyst support grids, furnace baffles, heat-treating trays, and fixtures. Petrochemical & Chemical ProcessingEthylene cracking furnace tubes, reformer tubes, high-temperature reactor internals, flash dryer components, and pyrolysis tubing. Power GenerationGas turbine combustors, heat exchangers, and superheater tube bundles in waste heat recovery boilers. AutomotiveDiesel engine turbocharger housings and exhaust manifolds (for applications with high exhaust gas temperatures). Nuclear EngineeringHeat exchangers and core support structures for high-temperature gas-cooled reactors (HTGR) in helium environments.
Quality AssuranceQuality is at the core of everything we do at ZYTC Alloy. Our comprehensive quality assurance system ensures that every product leaving our facility meets or exceeds your expectations. Certifications & Compliance| Certification / Standard | Description |
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| AS9120B | Aerospace Quality Management System | | ISO9001:2015 | International Quality Management System | | ASTM B435 / B572 | Sheet, strip, plate, and bar standards | | AMS 5536 / 5754 | Aerospace material specifications | | ASME SB435 | Pressure vessel applications | | NACE MR0175 / ISO 15156-3 | Suitable for sour service environments (where applicable) | | EN 10204 Type 3.1 / 3.2 | Material certification document types |
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Minimum Order Quantities (MOQ)| Order Type | MOQ |
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| Stock items (bar/sheet/pipe) | No fixed MOQ – small quantities welcome | | Custom cut-to-length | No fixed MOQ | | Custom forgings | Please contact us to discuss | | Samples | Free samples – buyer pays freight |
Lead Times| Order Type | Typical Lead Time |
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| Stock items | 3 – 7 days | | Custom orders & forgings | 2 – 4 weeks | | Large volume orders | 4 – 6 weeks |
Expedited shipping options are available upon request. Payment Terms| Method | Terms |
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| T/T (Bank Transfer) | 30% deposit + 70% balance before shipment | | Other methods | Sample orders, small amounts via PayPal, Western Union |
Frequently Asked QuestionsWhat is the maximum service temperature for nickel alloy X?Nickel alloy X can operate from -184°C to 1,205°C (-300°F to 2,200°F) while maintaining good mechanical properties. Long-term service temperature can reach 1,095°C with short-term exposure up to 1,200°C. What are the equivalent standards for nickel alloy X?Nickel alloy X corresponds to UNS N06002, DIN/EN 2.4665, AMS 5536/5754, ASTM B435/B572, GB/T GH3536/GH536. Can Hastelloy X be welded?Yes. Hastelloy X offers excellent weldability with good resistance to cracking. Filler metal ERNiCrMo-2 (AWS A5.14) is commonly used. Welding can be performed using a variety of techniques including TIG and MIG. What forms does ZYTC Alloy supply nickel alloy X in?We supply nickel alloy X in round bar, sheet, plate, seamless pipe, welded pipe, tube, forgings (rings, discs, blocks, flanges), and welding wire. Custom sizes available. Do you provide mill test reports?Yes. Every shipment includes a complete, traceable Mill Test Report (MTR) with chemical composition and mechanical properties. Additional documentation is available upon request. What is your minimum order quantity?We have no fixed MOQ for standard stock items. Small quantities are welcome. Custom forgings are handled on a case-by-case basis. Do you offer custom sizes?Yes. We offer custom sizes, cut-to-length services, custom forgings, and machined parts based on your drawings or specifications. Do you ship internationally?Yes. We ship worldwide from Tianjin, China, to North America, Europe, Asia, the Middle East, and other regions. Request a QuoteGet your Hastelloy X quote today – we respond within 2 hours. Submit your requirements below and our team will provide a clear, competitive quote tailored to your specifications. Contact ZYTC AlloyReady to order? Contact us today. | Contact Method | Information |
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| Inquiry Form | Submit via form | | Email | daisy@zytcsteel.com | | Live Chat | Click the chat icon at the right to chat with our team in real time | | Phone | +86-17335753350 (WhatsApp/WeChat) | | Business Hours | Monday – Friday, 8:30 – 18:00 (Beijing Time) |
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