Alloy 825 / UNS N08825
Nickel-iron-chromium alloy with molybdenum, copper and titanium for corrosion resistance in reducing and oxidizing environments.
Request Alloy 825 QuoteAlloy 825 Can Be Supplied in Multiple Forms.
UNS N08825 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 →Overview & Key Features
Alloy 825 is used where resistance to sulfuric and phosphoric acids, chloride stress-corrosion cracking and localized attack is important. It is commonly supplied for chemical processing, oil & gas, pickling, pollution control and heat-transfer equipment.
Applications
Chemical processing equipment, acid production and handling, oil & gas components, heat exchangers, pickling equipment, marine and pollution-control systems.
Manufacturing & Inspection
Project supply can include controlled melting, forging, heat treatment, finishing, chemistry and mechanical verification, dimensional inspection and documentation according to the applicable purchase specification.
FAQ
Which product forms are available?
Availability can include bar, pipe, tube, plate, sheet, strip and forged products depending on dimensions and order requirements.
Can testing be specified by the buyer?
Yes. Testing, inspection and documentation requirements should be stated in the inquiry and are reviewed against the applicable standard and accredited scope where relevant.
Composition, Mechanical Properties & Product Standards
Description
Specifications
| UNS | W.Nr |
| N08825 | 2.4858 |
| Grade | % | Ni | Cr | Fe | C | Mn | Si | Cu | Mo | Al | Ti | P | S |
| 825 | Min | 38 | 19.5 | Bal. | 1.5 | 2.5 | 0.6 | ||||||
| Max | 46 | 23.5 | 0.05 | 1 | 0.5 | 3 | 3.5 | 0.2 | 1.2 | 0.03 | 0.03 |
| Tensile Strength σb/MPa | Yield Strength σp0.2/MPa | Elongation σ5 /% |
| 550 | 220 | 30 |
| Bar | Forging | Sheet/Strip | Wire | Pipe |
| ASTM B408 | ASTM B564 | ASTM B409 | ASTM B408 | ASTM B407 ASTM B514 |