Inconel 625 Flange (UNS N06625 / W.Nr. 2.4856)
High-strength corrosion-resistant alloy Flange for marine and chemical processing
As a leading Chinese manufacturer of Inconel pipe fittings, SEATHER TECHNOLOGY produces a full range of high-quality Inconel 625 (UNS N06625 / W.Nr. 2.4856) flanges engineered for demanding industrial applications.
Inconel 625 (UNS N06625 / W.Nr. 2.4856) is a nickel-chromium-molybdenum alloy renowned for its exceptional strength, excellent weldability, and outstanding corrosion resistance. With reliable performance from cryogenic temperatures up to 1800°F (982°C), it is widely used in aerospace components, petrochemical instrumentation, marine engineering, and high-purity fluid systems.
Flanges serve as critical components for connecting pipelines, valves, pumps, and other equipment. SEATHER’s 625 flanges are precision-manufactured to ensure reliable, leak-free connections with our 625 pipes and tubes, providing excellent mechanical integrity under high pressure and extreme corrosion conditions. If you are sourcing 625 piping, our matching flange products will be the ideal complement for your system.
To meet various installation and structural requirements, SEATHER TECHNOLOGY supplies 625 flanges in multiple types, including:
- Threaded Flange
- Slip-On Welding Flange
- Blind Flange
- Socket Welding Flange
- Lap Joint Flange
- Welding Neck Flange
With advanced production technology, strict quality control, and full customization options, SEATHER ensures that each 625 flange delivers precision, durability, and exceptional performance for your critical piping systems.
Inconel 625 Flange (UNS N06625) Specifications & Srtandard
- NPS: 1/2 ~ 48″
- SCH: 5 ~ XXS
- Classification: TH (Threaded) flange, SO (Slip-On Welding) flange, BL (Blind) flange, SW (Socket Welding) flange, LJ (Lapped) flange, WN (Welding Neck) flange
- Customized size needs to be confirmed with our team
- Pressure Level: 150 – 2500lbs
- Grades: 625 / UNS N06625 / W.Nr. 2.4856
- Standards: ASTM B462
ASME B16.5
MSS SP-25 - Brand: SEATHER TECHNOLOGY, Special Metals(SMC), HAYNES International, VDM Metals, ATI, etc.
Inconel 625 Flange (UNS N06625) Applications & Usages
- Aerospace
- Automotive
- Marine
- Chemical Processing
- Power Generation
- Nuclear
What is Inconel 625 (UNS N06625)
Nickel alloy 625 is widely used in marine applications due to its outstanding corrosion resistance. Its ability to withstand localized corrosion (pitting and crevice corrosion), chloride ion stress corrosion, and its excellent fatigue strength make it ideal for marine components such as propeller blades, exhaust systems, and fasteners.
Additionally, alloy 625 is extensively employed in the aerospace industry for its superior high-temperature tensile properties and creep strength. It is commonly used in aircraft piping systems, engine exhausts, fuel and hydraulic lines, and heat exchanger tubes. Its high-temperature resistance also makes it valuable in heat treatment equipment and the chemical industry.
Inconel 625 Flange (UNS N06625) Chemical Composition
| Grade | Standard | C | Si | Mn | P | S | Cr | Ni | Mo |
| 625 | ASTM | ≤0.1 | ≤0.50 | ≤0.50 | ≤0.015 | ≤0.015 | 20.00-23.00 | ≥58.0 | 8.0-10.0 |
Inconel 625 Flange (UNS N06625) Mechanical Properties
| Element | Yield Strength (0.2%Offset) | Melting Point | Density | Tensile Strength | Elongation |
| 625 | MPa – 276 | 1350 °C (2460 °F) | 8.44 g/cm3 | MPa – 690 | Min 30 % |
Inconel 625 Flange (UNS N06625) Physical Properties
| Melting Range | Specific Heat, 20°C (J/(g.K)) | Magnetic Permeability (20°C) | Thermal Conductivity, 20°C (W/(m.K)) | Curie Temperature (°C) |
| 1350 °C (2460 °F) | 410 | ＜1.001 | 9.9 | -196 |
Metal Cutting Service
Custom Metal Cutting Services For Diverse Industries
CNC Machining Services
Custom CNC machining parts in nickel alloy and stainless steel delivery in as fast as 3 days
Sheet Metal Fabrication
SEATHER’s custom sheet metal fabrication services offer a fast and cost-effective solution for your projects.
Metal Welding Service
Seather provides some of the best solutions ranging from custom metal welding and related services.
More Information About Inconel 625 Flange (UNS N06625)
When you choose to buy Inconel 625 Flange (UNS N06625), there have some important points we need to know before we get started.
Pitting resistance equivalency numbers (PREN) for Inconel 625 Flange (UNS N06625)
Inconel 625 PREN: 40.8
The pitting resistance equivalency number uses the alloy’s chemical makeup to guess its power against pitting corrosion. You check how much chromium, molybdenum, tungsten, and nitrogen are in the alloy. These elements help keep the steel safe. The most used formula is:
PREN = CR% + 3.3 x (MO% + 0.5 x W%) + 16 x N%How to Purchase Inconel 625 Flange (UNS N06625)
When purchasing alloy flanges, it’s essential to have the right materials and information to ensure a smooth procurement process and to get the products that meet your project needs.
Here’s what you need to provide:
1. Material: Specify the flange material, such as nickel alloy 625. You can refer to standards such as ASTM and ASME.
2. Type: Determine the type of flange needed, such as butt welding flange, threaded flange, slip-on flange, blind flange, etc.
3. Size: Specify the flange’s nominal diameter (DN) and pressure rating (PN).
4. Quantity: Provide the exact number of flanges required for an accurate quotation.
5. Technical specifications: Include technical specifications and drawings. If there are unique design requirements, detailed drawings can be attached.
6. Quality standards: Specify quality standards and inspection requirements, such as the need for third-party inspection, material certification, and inspection reports.
7. Special requirements: Specify any special surface treatment, coating, corrosion resistance requirements, etc.
8. Packaging requirements: If there are specific packaging needs, such as protective or anti-corrosion packaging, please specify.
9. Delivery time: Specify the expected delivery time and location.
By preparing the above information, you can streamline the process of purchasing flanges and ensure that you receive high-quality products that meet your requirements.
Conclusion
We have introduced our products briefly. If you want to know more about it, you can check the article here Inconel Alloy 625: Composition, Properties and Applications.
If you need to purchase alloy flange, please get in touch with us immediately.
Trademark Notices:
Inconel®, Incoloy®, and Monel® are registered trademarks of Special Metals Corporation.
Hastelloy® is a registered trademark name of Haynes International, Inc.
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