Inconel 625 Welded Pipe Tube (UNS N06625 / W.Nr. 2.4856)
High-strength corrosion-resistant Welded Pipe Tube for marine and chemical processing
As a leading Chinese Inconel pipe supplier, SEATHER TECHNOLOGY manufactures and supplies a full range of high-quality Inconel 625 welded pipes and tubes in various sizes and specifications.
Inconel 625 (UNS N06625 / W.Nr. 2.4856) is a nickel-chromium-molybdenum alloy widely recognized for its excellent combination of high strength, superior fabricability (including outstanding weldability), and exceptional corrosion resistance. With a service temperature range from cryogenic conditions to 1800°F (982°C), it performs reliably in chemical processing, marine environments, heat exchangers, aerospace systems, and other demanding applications.
Inconel 625 welded pipe & tube is produced by forming and welding Inconel 625 strip or plate. For this reason, the quality of the raw material plays a decisive role in the final product performance. At SEATHER, we source our Inconel 625 strip and plate from reputable large-scale mills and utilize advanced forming, splitting, and welding technologies to ensure stable quality in every welded pipe and tube we manufacture.
For applications requiring enhanced corrosion resistance and mechanical performance, SEATHER also provides solution-annealed Inconel 625 welded pipe & tube, processed with our online solid-solution heat-treatment equipment. This ensures uniform grain structure, improved ductility, and stable microstructure for critical service environments.
Inconel 625 Welded Pipe Tube (UNS N06625) Specifications & Srtandard
- OD Range: Φ6 – Φ200mm
- Wall Thickness: Φ0.35 – Φ6mm
- Length: 50mm – 12000mm
- Customized size needs to be confirmed with our team
- Grades: 625 / UNS N06625 / W.Nr. 2.4856
- Standards: ASTM B704
ASTM B751
ASTM B705
ASTM B775
DIN 17751
ISO 6207 - Finish: Bright, Polishing, Mirror, Hairline, Pickled, Peeled, Black
- Brand: SEATHER TECHNOLOGY, Special Metals(SMC), HAYNES International, VDM Metals, ATI, etc.
Inconel 625 Welded Pipe Tube (UNS N06625) Applications & Usages
- Aircraft ducting and exhaust systems
- Engine thrust-reverser systems
- Turbine shroud rings
- Bellows, expansion joints
- Gaskets and damper seals
- Motorsport exhaust and clamps
- Weld overlay and spacers for heat recovery systems
- Furnace muffles
- Valve seats and components
Inconel 625 Welded Pipe Tube (UNS N06625) Drawing & Formula
Formula: m = (OD – THK) × THK (mm) × L (m) × ρ (g/cm³) × π ÷ 1000
OD = Outside Diameter, THK = Wall Thickness, L = Length
ρ = Density, π = 3.1415926…
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 Welded Pipe Tube (UNS N06625) Chemical Composition
| Grade | Standard | C | Si | Mn | P | S | Cr | Ni | Mo |
| 625 | ASTM B443 | ≤0.1 | ≤0.50 | ≤0.50 | ≤0.015 | ≤0.015 | 20.00-23.00 | ≥58.0 | 8.0-10.0 |
Inconel 625 Welded Pipe Tube (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 Welded Pipe Tube (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 |
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CNC Machining Services
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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 Welded Pipe Tube (UNS N06625)
When you choose to buy Inconel 625 Welded Pipe Tube (UNS N06625), there have some important points we need to know before we get started.
Pitting resistance equivalency numbers (PREN) for Inconel 625 Welded Pipe Tube
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 Welded Pipe Tube (UNS N06625)
When purchasing alloy welded pipe tube, it’s essential to have the right materials and information to ensure a smooth procurement process and to get the products that meet your needs.
Here’s what you need to provide:
1. Material: Specify the grade material, Alloy 625 (UNS N06625)
2. Size: Specify the Outer Diameter, Inner Diameter, Wall thickness, Length, Delivery State, finish, etc.
3. Quantity: Provide the exact number of products required for an accurate quotation.
4. Technical specifications: Include technical specifications and drawings. If there are unique design requirements, detailed drawings can be attached.
5. Quality standards: Specify quality standards and inspection requirements, such as the need for third-party inspection, material certification, and inspection reports.
6. Special requirements: Specify any special surface treatment, polishing, corrosion resistance requirements, etc.
7. Packaging requirements: If there are specific packaging needs, such as protective or anti-corrosion packaging, please specify.
8. Delivery time: Specify the expected delivery time and location.
By preparing the above information, you can streamline the process of purchasing alloys 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 welded pipe tube, 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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