Alloy 625 / UNS N06625
Nickel-chromium-molybdenum-niobium alloy combining high strength with broad corrosion resistance for demanding process, marine, oil & gas and power applications.
Request Alloy 625 QuoteAlloy 625 Can Be Supplied in Multiple Forms.
UNS N06625 can be reviewed in different product forms to match fabrication, machining and project requirements. Final availability depends on specification, dimensions, heat-treatment condition, quantity and inspection requirements.
Bar & Rod
Forged, rolled, peeled and machined bar supplied to project dimensions and finishing requirements.
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Pipe & Tube
Seamless pipe, straight tube and U-bend tube for process, pressure and heat-transfer service.
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Sheet & Plate
Plate and sheet for pressure equipment, vessels, exchangers, high-temperature service and fabrication.
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Wire
Alloy wire for welding, springs, heating, forming and engineered applications.
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Strip
Cold-rolled and precision strip for heat-resistant, electrical, spring and specialty component applications.
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Forgings
Custom forged bars, rings, blanks and near-net components for demanding mechanical and thermal service.
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Welding Materials
Nickel and nickel-alloy welding wire and specialty welding materials for compatible fabrication and repair.
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Machined Parts
Drawing-based components with material traceability, machining control and inspection support.
Request this form →Alloy 625 Overview
Alloy 625 is widely selected where resistance to pitting, crevice corrosion and aggressive media must be combined with useful mechanical strength. Our manufacturing route can support forged and finished products with project-specific heat treatment, testing and documentation.
Typical Product Standards
Common specifications include ASTM B446 for rod and bar, ASTM B443 for plate/sheet/strip, ASTM B444 for seamless pipe and tube, ASTM B704/B705 for welded tube/pipe, and ASTM B366 for fittings. Final supply is always reviewed against the purchase specification and edition required by the project.
Typical Applications
Oil & gas equipment, chemical and petrochemical processing, seawater and marine systems, pollution-control equipment, heat exchangers, power-generation components, fasteners, valves and engineered forgings.
Manufacturing & Inspection Support
Melting, forging, heat treatment, finishing, dimensional inspection, material verification and mechanical testing can be coordinated according to the order. CNAS-accredited testing is stated only where the requested test falls within the accredited scope of Jiangsu Xinhua Alloy Co., Ltd. Testing Center.
Alloy 625 FAQ
Can Alloy 625 be supplied as forged bar?
Yes. Forged bar and custom forged blanks can be reviewed against diameter, length, heat treatment, testing and tolerance requirements.
Can third-party inspection be arranged?
Yes. Witness and third-party inspection can be coordinated when specified in the purchase order.
What information should I send for a quotation?
Please provide grade, product form, standard, dimensions, quantity, heat-treatment condition, testing requirements and destination.
Composition, Mechanical Properties & Product Standards
Description
Specifications
| UNS | W.Nr |
| N06625 | 2.4856 |
| Grade | % | Ni | Cr | Mo | Nb | Fe | Al | Ti | C | Mn | Si | Co | P | S |
| 625 | Min | Bal. | 20 | 8 | 3.15 | |||||||||
| Max | 23 | 10 | 4.15 | 5 | 0.4 | 0.4 | 0.1 | 0.5 | 0.5 | 1 | 0.015 | 0.015 |
| Tensile Strength σb/MPa | Yield Strength σp0.2/MPa | Elongation σ5 /% |
| 760 | 345 | 30 |
| Bar | Forging | Sheet/Strip | Wire | Pipe |
| ASTM B446 | ASTM B564 | ASTM B443 | ASTM B446 | ASTM B444 ASTM B704 ASTM B705 |