Where to Buy Alloy 825 Tubes and Fittings in the UAE
Alloy 825, also known as Incoloy 825 or UNS N08825, is a nickel-iron-chromium alloy valued for its strong corrosion resistance in sour, acidic, and chloride-rich oil and gas environments.
If you need Alloy 825 tubes and fittings in the UAE without long lead times, the key is choosing a supplier that can provide stock availability, full certification, and fast delivery across the region.
As an Alloy 825 tubes and fittings supplier in the UAE, Tensor helps businesses buy the right material, fully certified and ready for project use, with minimal procurement delay.
This guide covers what Alloy 825 is, the standards for tubes and fittings, and how to buy it faster in the UAE.
What Is Alloy 825?
Alloy 825 is a titanium-stabilised nickel-iron-chromium alloy with added molybdenum and copper. The high nickel content provides resistance to chloride stress-corrosion cracking, while molybdenum and copper improve resistance to reducing acids such as sulfuric and phosphoric acid.
It also offers strong resistance to pitting and crevice corrosion. Alloy 825 is designated as UNS N08825 and Werkstoff 2.4858, and it is listed in NACE MR0175 and ISO 15156 for sour oil and gas service.
| Property | Detail |
|---|---|
| Designation | UNS N08825 / Werkstoff 2.4858 |
| Type | Nickel-iron-chromium alloy with molybdenum, copper, and titanium |
| Nickel Content | Approximately 38% to 46% |
| Sour Service | Listed in NACE MR0175 / ISO 15156 |
| Key Resistance | Sulfuric and phosphoric acids, chloride stress-corrosion cracking, pitting, and crevice corrosion |
Why Choose Alloy 825 for Oil and Gas?
Alloy 825 is selected for applications where standard stainless steels may fail due to sour service, acid exposure, or chloride-rich environments.
Its combination of acid resistance, chloride stress-corrosion cracking resistance, and NACE compliance makes it suitable for sour wells, downhole and surface equipment, acid plants, seawater-exposed systems, and petrochemical applications.
Alloy 825 also offers improved aqueous corrosion resistance compared with Alloy 800 while remaining weldable and machinable using conventional methods.
Alloy 825 Tubes and Fittings Specifications
Tensor supplies Alloy 825 in the common product forms used on oil and gas and petrochemical projects, following recognised ASTM and ASME standards.
Common Alloy 825 product forms and standards include:
| Product Form | Standard | Typical Use |
|---|---|---|
| Seamless tube | ASTM B163 / B423 | Heat exchanger, condenser, and process applications |
| Welded tube | ASTM B704 / B705 | General service lines |
| Instrument tube | ASTM B725 | Small-bore precision lines |
| Seamless pipe | ASTM B423 | Process and pressure piping |
| Buttweld fittings | ASTM B366 | Elbows, tees, and reducers |
| Forged fittings and flanges | ASTM B564 | Threaded fittings, socket-weld fittings, and flanges |
Buttweld fitting dimensions commonly follow ASME B16.9 and ASME B16.28. Sizes may range from 1/2 inch to 24 inches across different schedules, depending on project requirements.
Applications of Alloy 825 Tubes and Fittings
Alloy 825 tubes and fittings are used in demanding environments where corrosion resistance, sour service suitability, and long-term reliability are important.
Common applications include:
- Sour oil and gas production involving H₂S conditions
- Downhole and surface equipment
- Heat exchangers, condensers, and process piping
- Sulfuric and phosphoric acid plants
- Pickling equipment
- Seawater and marine systems
- Chemical and petrochemical processing
How to Buy Alloy 825 Faster in the UAE
Lead time on nickel alloys is often lost during procurement, not manufacturing. To buy Alloy 825 faster, the required product form, standard, certification, and inspection scope should be clearly confirmed at the enquiry stage.
To reduce delays, follow these steps:
- State the exact standard along with the product form, such as Incoloy 825 seamless tube to ASTM B163
- Confirm the document scope upfront, including MTC, traceability, and dimensional checks
- Add PMI or NDT only when required by the inspection plan
- Confirm NACE MR0175 compliance and hardness limits early for sour service applications
- Source from a supplier that holds stock or can rapidly access stock and deliver across the UAE
What Certification Comes with Alloy 825?
Each Alloy 825 order should be supplied with the documentation required by the project. This may include mill test certificates to EN 10204 3.1, material traceability, NACE MR0175 compliance for sour service, and positive material identification where specified.
Defining the document pack at the beginning helps avoid costly scope changes that can increase price or extend lead time during procurement.
Alloy 825 Tubes and Fittings Supplier in the UAE
Tensor supplies Incoloy 825, UNS N08825 tubes and fittings across the UAE with full certification, NACE-compliant material for sour service, and fast regional delivery.
Backed by its trading division and engineering teams, Tensor helps businesses specify materials correctly, avoid procurement delays, and get project-ready material delivered to site.
Request a quote for Alloy 825 tubes and fittings, or explore Tensor’s full trading range.
FAQs
Alloy 825, also known as Incoloy 825 or UNS N08825, is a nickel-iron-chromium alloy with molybdenum, copper, and titanium. It offers strong resistance to acids, chloride stress-corrosion cracking, pitting, and sour oil and gas service conditions.
Yes. Incoloy 825, Alloy 825, UNS N08825, and Werkstoff 2.4858 refer to the same nickel-iron-chromium alloy. These names are commonly used interchangeably across suppliers, standards, and project specifications.
Alloy 825 tubes are commonly supplied to ASTM B163, ASTM B423, ASTM B704, ASTM B705, or ASTM B725. Buttweld fittings follow ASTM B366 with ASME B16.9 or B16.28 dimensions, while forged fittings and flanges are commonly supplied to ASTM B564.
Yes. Alloy 825 is listed in NACE MR0175 and ISO 15156 for sour H₂S service. For sour applications, the required hardness limits, material traceability, and supporting certification should be confirmed before ordering.
To get Alloy 825 delivered faster, mention the exact product form and standard, confirm the document pack upfront, check NACE compliance early, and source from a supplier that holds stock or can rapidly access stock with regional delivery.
Tensor supplies Incoloy 825 and UNS N08825 tubes and fittings across the UAE with full certification, NACE-compliant material for sour service, and fast regional delivery for oil and gas, marine, chemical, and petrochemical projects.
