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HASTELLOY X（UNSN06002） Sheet / Plate
Nickel-Chromium-Iron-Molybdenum Alloy for High-Temperature & Oxidation Resistance
HASTELLOY X sheet/plate is a nickel-chromium-iron-molybdenum alloy designed for high-temperature strength and oxidation resistance, with proven performance in furnace and gas-turbine environments. It also shows good resistance to stress-corrosion cracking in some petrochemical applications.
As a professional Chinese nickel-based alloy manufacturer, we supply HASTELLOY X sheet and plate with stable chemistry, consistent mechanical properties, and flexible dimensional customization for global industrial users.
Typical supply range (custom sizes and tolerances available upon request):
Item | Range / Options | Notes |
Thickness | 0.5 – 50 mm | Sheet typically ≤ 6 mm; Plate typically ≥ 6 mm (project-defined). |
Width | Up to 2000 mm | Slitting available; define tolerance if critical. |
Length | Up to 6000 mm | Cut-to-length (shearing) by agreement; define tolerance if critical. |
Surface finish | 2B / No.1 / BA / Polished | PVC protective film optional for surface-critical parts. |
Edge | Mill edge / Slit edge | Deburring / edge conditioning available. |
Flatness / tolerance | Per ASTM/EN or as agreed | Define flatness for welded assemblies and heat exchangers. |
Delivery condition | Solution annealed (standard) | Pickled/bright depending on thickness/finish. |
Dimension definition: THK × WIDTH × LENGTH.
• Excellent high-temperature strength and oxidation resistance
• Good fabricability and weldability for complex fabricated structures
• Good resistance to carburizing and nitriding furnace atmospheres
• Resistant to stress-corrosion cracking in certain petrochemical environments
• Suitable for oxidizing, reducing, and neutral atmospheres in furnace service
Element | Ni | Cr | Mo | Fe | W | Mn | Si | C |
HASTELLOY X | Balance | 20.5–23.0 | 8.0–10.0 | 17.0–20.0 | 0.2–1.0 | ≤1.0 | ≤1.0 | 0.05–0.15 |
Nominal/typical chemistry is shown. Typical additions include Co (0.5–2.5 wt.%) and minor elements such as B (≤0.008) to support high-temperature performance.
Property | Value |
Tensile Strength (Rm) | ≈ 783 MPa |
Yield Strength (Rp0.2) | ≈ 376 MPa |
Elongation | ≈ 46 % |
Hardness | ≈ 86–92 HRB |
Mechanical properties may vary slightly with product form and heat treatment condition.
Standard System | Specification |
ASTM / ASME | ASTM B435 / ASME SB-435 |
EN | EN 10204 |
UNS | N06002 |
DIN | 2.4665 |
JIS | NW6002 |
Item | Range |
Thickness | 0.5 – 50 mm |
Width | up to 2000 mm |
Length | up to 6000 mm |
Surface Finish | 2B / BA / No.1 / Polished |
Edge | Mill edge / Slit edge |
Custom sizes, tight tolerances, and cut-to-length service are available upon request.
• Solution Annealed
• Bright Annealed / Pickled (where applicable)
• Gas turbine combustion zone components (transition ducts, combustor cans, flame holders)
• Afterburners, tailpipes, and cabin heaters
• Industrial furnace components (baffles, trays, fixtures, radiant parts)
• Retorts, muffles, and catalyst support grids
• Tubing/plates for pyrolysis operations and flash drier components
HASTELLOY X can be fabricated and welded using standard nickel-alloy practices.
Common welding methods include:
• GTAW (TIG)
• GMAW (MIG)
• SMAW
Matching filler metals such as ERNiCrMo-2 are typically recommended.
• EN 10204 3.1 Material Test Certificate
• Chemical composition analysis
• Mechanical testing (tensile, hardness)
• PMI / XRF testing available
• Dimensional inspection
• Third-party inspection on request (BV, SGS, TUV, DNV)
• PVC protective film on surface (where applicable)
• Wooden pallets or export-grade crates
• Seaworthy packaging for long-distance shipment
• Global delivery by sea, air, or multimodal transport
• Professional nickel-based alloy manufacturer in China
• Stable raw material sourcing and melting control
• Wide stock and fast production cycle
• Competitive pricing for global projects
• Experience with international EPC, OEM, and distributors
For quotation or technical consultation, please provide:
• Required grade (HASTELLOY X)
• Thickness × Width × Length
• Quantity
• Surface finish / delivery condition
• Application environment
Our technical team will respond with datasheets, pricing, and delivery schedule promptly.
