Inconel 625 Alloy Tubes & Pipes Supplier & Manufacturer
(UNS N06625) Inconel 625 alloy tubes and pipes are widely used in high-temperature, high-pressure, and corrosive environments where standard stainless steel materials fail.
As a professional Inconel 625 tube and pipe supplier, Huaxiao Metal provides seamless and welded Inconel 625 pipes with stable quality, global export experience, and competitive pricing.
Our Inconel 625 alloy products comply with ASTM B444 / ASME SB444 standards and are suitable for use in the oil & gas, chemical processing, marine engineering, aerospace, and power generation industries.
Available Inconel 625 Tube & Pipe Specifications
- Standards: ASTM B444 / ASME SB444
UNS: N06625
Manufacturing Types:
- Seamless Inconel 625 Tubes
- Welded Inconel 625 Pipes
Outer Diameter: 3 mm – 630 mm
Wall Thickness: 0.5 mm – 50 mm
Length: Random / Fixed / Cut-to-length
Surface Finish: Pickled, Annealed, Polished
Inspection: PMI, UT, Eddy Current, Hydro Test
Custom sizes and special tolerances are available upon request.
Huaxiao Metal offers comprehensive dimensional customization and testing certification to ensure that customer engineering requirements are met.
What Is Inconel 625 Alloy?
Inconel 625(UNS N06625) is a nickel-chromium-molybdenum alloy strengthened primarily by solid solution hardening.
Its unique composition provides exceptional resistance to corrosion, oxidation, and extreme temperatures without the need for heat treatment.
Key advantages of Inconel 625 tubes & pipes:
Excellent resistance to pitting and crevice corrosion
Outstanding performance in seawater and acidic environments
High tensile strength at elevated temperatures
Superior fatigue and thermal-fatigue resistance
Easy fabrication and welding compared to many nickel alloys
Inconel 625 (UNS N06625) Detailed Technical Specifications
UNS N06625 Pipes Equivalent Standards
| Standard / Organization | Equivalent Grade / Alloy |
|---|---|
| UNS (USA) | N06625 |
| ASTM / ASME (USA) | B444, SB444 |
| EN / DIN (Europe) | 2.4856 |
| JIS (Japan) | SN06625 |
| GB / China | GH625, NiCr22Mo9Nb |
| ISO | N06625 |
| Werkstoff (Germany) | 2.4856 |
| AFNOR / NF (France) | NC21M |
| BS (UK) | NA |
Chemical Composition (%) (Typical)
Room Temperature Mechanical Properties (Solution Annealed)
Physical Properties
Density: 8.44 g/cm³ Melting Range: 1290-1350 °C Magnetism: Typically non-magnetic
Inconel 625 Alloy Tube Applications
Marine & Offshore Engineering: Seawater piping systems, propeller shafts, submarine components, offering superior seawater corrosion resistance.
Chemical Processing Industry: Heat exchangers, reactors, evaporator pipes, especially suitable for acidic environments containing chlorides.
Aerospace: Engine exhaust systems, fuel lines, hydraulic tubing, meeting high-strength and high-temperature demands.
Oil & Gas: Offshore platform equipment, downhole tubing, valve components, resisting H₂S and CO₂ corrosion.
Nuclear & Power Generation: Nuclear reactor core components, flue gas desulfurization (FGD) spray pipes.
If your project requires long-term reliability under extreme conditions, Inconel 625 is one of the most trusted nickel alloys available.
Want to learn how to select a reliable supplier for critical projects?
👉 Read our guide: How to Choose a Reliable Inconel 625 Pipe Supplier for Oil & Gas Projects?
Inconel 625 vs Stainless Steel Pipes
Compared with 304 or 316 stainless steel pipes, Inconel 625 offers:
Higher strength at elevated temperatures
Better resistance to chloride-induced corrosion
Longer service life in aggressive environments
For critical applications, choosing Inconel 625 can significantly reduce maintenance and replacement costs.
Why Choose Huaxiao Metal as Your Inconel 625 Tube Supplier?
Full Range of Specifications: From thin-walled capillary tubes to large-diameter industrial pipes, both seamless and welded.
Complete Quality Documentation: Full Mill Test Certificates (MTC/MTR) and third-party inspection reports provided.
Expert Technical Support: Suppliers offer professional guidance on cutting, bending, and welding.
Competitive Pricing: Direct connection to factories optimizes your procurement costs.
FAQ About Inconel 625 Alloy Tubes & Pipes
What is the main difference between Inconel 625 and Inconel 600?
The key difference is that Inconel 625 contains Molybdenum (Mo) and Niobium (Nb), giving it significantly higher strength and superior resistance to pitting and crevice corrosion than Inconel 600. Inconel 600 is better suited for high-temperature oxidizing environments, while alloy 625 is ideal for high-temperature, high-strength applications with aggressive media.
What should I consider when welding Inconel 625 tubing?
Inconel 625 has good weldability. Gas Tungsten Arc Welding (GTAW/TIG) is recommended using a matching filler wire (e.g., ERNiCrMo-3). Control heat input carefully and use high-purity shielding gases to avoid weld contamination.
Can you provide tubing that complies with NACE MR0175/ISO 15156 standards?
Yes, many suppliers on our platform can provide Inconel 625 tubing compliant with NACE MR0175 (for materials resistant to Sulfide Stress Cracking in oil and gas production). Please specify this requirement in your inquiry.
Do you have stock available for immediate purchase?
Selected common sizes are available from stock. For non-standard or large quantity orders, production is typically scheduled based on your specifications. Contact us for current stock levels and lead times.
Get Inconel 625 Alloy Tubes & Pipes Price Today
Huaxiao Metal is a reliable Inconel 625 alloy tube and pipe supplier serving customers worldwide.
We offer stable quality, competitive pricing, and professional technical support for industrial projects.
Contact us now to get a free quote and samples!
Metal Tube & Pipe from Huaxiao Metal
Inconel 600 Tube
Inconel 600 Tube – Premium Nickel Alloy Tubing Supplier | Huaxiao Metal Inconel 600 Tube is a high-performance nickel-based alloy tube containing at least 72%
Tungsten Tube
Tungsten Tube / Tubing & Pipe Supplier & Manufacturer – Huaxiao Metal Huaxiao Metal is a certified manufacturer and global supplier of pure tungsten tube (W1,
Molybdenum Tube
Molybdenum Tube / Tubing & Pipe Supplier & Manufacturer – Huaxiao Metal Molybdenum tube, also known as molybdenum tubing or molybdenum pipe, is a high-performance
BOP Hydraulic Control Line
BOP Hydraulic Control Line | Blowout Preventer Hydraulic Control Line Supplier The BOP Hydraulic Control Line is a critical component in well control systems, designed
BA Finish Silicon Coated Stainless Steel Coil Tubing
BA Finish Silicon Coated Stainless Steel Coil Tubing | Bright Annealed Coil Tubing Supplier – Huaxiao Metal The BA Finish Silicon Coated Stainless Steel Coil
Oxygen Cleaned Stainless Steel Tubing
Oxygen Cleaned Stainless Steel Tubing – High Purity Solutions from Huaxiao Metal Oxygen Cleaned Stainless Steel Tubing is a specialized stainless steel product designed for
Hydraulic Control Line Tubing
Hydraulic Control Line Tubing Supplier – Stainless Steel & Nickel Alloy Huaxiao Metal is a professional hydraulic control line tubing supplier and manufacturer, providing high-performance
Prefabricated Heat Tracing Pipe Bundle
Prefabricated Heat Tracing Pipe Bundle – Huaxiao Metal Prefabricated Heat Tracing Pipe Bundle is a highly efficient and energy-saving pipeline system designed to meet the
Multi Core Tube
Multi Core Tubes – High-Quality Supply from Huaxiao Metal Multi Core Tube is a specialized type of tubing designed with multiple individual cores bundled within
Aluminum Pipe
Aluminum Pipe For Sale From China Aluminum Pipe Supplier Aluminum Pipe Suppliers and Manufacturer As one of the trusted aluminum pipe suppliers and manufacturers in
Stainless Steel Tube
Quality Stainless Steel Tube Suppliers – Seamless & Welded Pipes Huaxiao Metal: As your trusted partner, we are committed to providing high-quality stainless steel pipe
Carbon Steel Pipe
Carbon Steel Pipe Manufacturers Welcome to Huaxiao Metal! We are a strong carbon steel manufacturer with more than ten years of experience in metal manufacturing
Copper Pipe
Copper Pipe Supplier and Manufacturer From China Copper Pipe As one of the long-established copper pipe suppliers and manufacturers, Huaxiao Metal’s copper tubes have excellent
Casing Pipe Steel
Casing Pipe Our casing pipe products are made of high-strength materials with excellent corrosion resistance and sealing properties and are suitable for oil and gas