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INCONEL 660（UNSS66286） WIRE
Iron-Nickel-Chromium Precipitation-Hardenable Alloy for High Temperature Strength
INCONEL 660 wire is supplied for corrosion-resistant fasteners, springs, woven mesh, and also as welding wire/filler applications where compatibility with C-22 base metal is required. The alloy maintains excellent corrosion resistance in both oxidizing and reducing environments and is suitable for demanding chemical process and pollution-control services.
As a professional Chinese nickel-based alloy manufacturer, we supply INCONEL 660 in multiple product forms 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 |
Diameter | 0.5 – 20 mm | Wire in coils/spools; straight lengths by request (limited sizes). |
Form | Coil / Spool / Straight | Packaging per diameter and customer requirement. |
Surface finish | Bright / Pickled / Descaled | Surface condition per application (forming/welding). |
Packaging | Spools / Coils | Labeling and moisture-proof packing available. |
Tolerance | Per ASTM/EN or as agreed | Define diameter tolerance for precision wire. |
Straightness | As agreed | For straight wire, define straightness and cut length tolerance. |
Delivery condition | Solution annealed (standard) | Annealed & pickled/bright depending on finish. |
Dimension definition: DIA × COIL/SPOOL.
• Excellent resistance to pitting and crevice corrosion in chloride media
• Outstanding resistance to chloride stress corrosion cracking (SCC)
• Strong resistance to oxidizing and reducing acids in mixed process media
• Withstands wet chlorine gas, hypochlorite, and chlorine dioxide solutions
• High chromium content improves resistance to oxidizing media; suitable for use in the as-welded condition
• Good fabrication and welding performance for CPI equipment
Element | Ni | Cr | Mo | Fe | W | Mn | Si | C |
INCONEL 660 | Balance | 20.0–22.5 | 12.5–14.5 | 2.0–6.0 | 2.5–3.5 | ≤0.50 | ≤0.08 | ≤0.015 |
Extremely low carbon and silicon help maintain corrosion resistance in as-welded structures.
Property | Value |
Tensile Strength (Rm) | ≥ ≥ 930 MPa |
Yield Strength (Rp0.2) | ≥ ≥ 635 MPa |
Elongation | ≥ ≥ 12 % |
Hardness | ≤ 93 HRB |
Mechanical properties may vary slightly with product form and heat treatment condition.
Standard System | Specification |
ASTM / ASME | ASTM B574 / ASME SB-574 |
EN | EN 10204 |
UNS | N06022 |
DIN | 1.4980 |
JIS | NW 6022 |
Item | Range |
Diameter | 0.5 – 20 mm |
Form | Coil / Spool / Straight |
Surface Finish | Bright / Pickled / Descaled |
Packaging | Spools / Coils |
Delivery condition | Solution annealed (standard) |
Custom sizes, tight tolerances, and cut-to-length service are available upon request.
• Solution Annealed & Aged
• Turbine blades, discs and fasteners operating up to 700°C
• Jet engine components and exhaust systems
• High-temperature springs, bolts and shafts
• Gas turbines and steam turbine components
• Fasteners for high temperature service in automotive and marine engines
• Heat-resistant components in chemical and petrochemical plants
• Cryogenic structural applications requiring good strength and toughness
INCONEL 660 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-3 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 (INCONEL 660)
• Diameter × Length
• Quantity
• Surface finish / delivery condition
• Application environment
Our technical team will respond with datasheets, pricing, and delivery schedule promptly.
