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Inconel 625 Seamless Tubing High Temperature Corrosion Resistant Nickel Alloy Tube
| Place of Origin | China |
|---|---|
| Brand Name | DELTA |
| Certification | ISO |
| Model Number | inconel 625 |
| Minimum Order Quantity | 500 kgs |
| Price | 40-45 USD/Kg |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 3 Ton per week |
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xProduct Details
| Products | Nickel Alloy Pipe | Grade | Inconel 625 |
|---|---|---|---|
| Diameter | DN10 - DN300 | Length | 6m Or Custom Cutting Any Length As Request |
| Standard | ASTM EN | Service | Cutting |
| Loading Port | Shanghai Port | Thickness | 0.5 - 40.0mm |
| Highlight | High-Temperature Seamless Tubing,Inconel 625 Seamless Tubing,Corrosion-Resistant Seamless Tubing |
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Product Description
Inconel 625 Seamless Tubing – High-Temperature & Corrosion-Resistant Nickel Alloy Tube
Products Specification
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Model
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Nickel Tubes Pipes
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Material Grade
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Inconel 600, Inconel 601, Inconel 625, Inconel 690, Inconel 718, Inconel 725, etc
Incoloy 800, Incoloy 825, Incoloy 925, Incoloy 800H, Incoloy 800, Incoloy926(AL-6XN), etc
Hastelloy C276, Hastelloy C22, Hastelloy C2000, Hastelloy X, etc |
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Diameter
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a) Capillary Tube Outer Diameter: 0.2mm-6.mm
Welding Tube Outer Diameter: 6.mm- 840mm
Seamless Tube Outer Diameter: 6mm-630mm
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b) Capillary Tube Wall Thickness: 0.02mm-2mm
Welding Tube Wall Thickness: 0.5-150mm
Seamless Tube Wall Thickness: 0.5-60mm
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c) Length: ≤500mm Or in coil
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Tolerance
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a) Outer Diameter: +/- 0.01mm
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b) Thickness: +/- 0.01mm
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c) Length: +/- 0.1mm
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Surface Treatment
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Polishing,Annealing, Bright, Pickling
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Type
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Welded,Seamless
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Shape
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Round,Square,Irregular
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Application
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medical treatment, petroleum, aerospace, medical equipment, air conditioning, chemical industry, electronics, accessories, food machinery, power generation, pharmaceutical and other fields.
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1. Overview
Inconel 625 seamless tubes are high-performance nickel-chromium alloy tubes known for their exceptional resistance to oxidation, corrosion, and high-temperature environments. They are manufactured through a seamless extrusion or drawing process, ensuring superior structural integrity and uniformity compared to welded tubes.
2. Chemical Composition
The alloy primarily consists of:
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Nickel (Ni): ~58% (provides corrosion resistance and ductility).
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Chromium (Cr): 20–23% (enhances oxidation resistance).
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Molybdenum (Mo): 8–10% (improves pitting/crevice corrosion resistance).
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Niobium (Nb): 3–4% (stabilizes the matrix against sensitization).
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Iron (Fe), Cobalt (Co), Titanium (Ti), and trace elements.
3. Key Properties
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Corrosion Resistance: Excellent performance in acidic, saline, and high-chloride environments (e.g., seawater, chemical processing).
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High-Temperature Strength: Retains mechanical properties up to 980°C (1800°F) due to solid-solution strengthening.
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Oxidation Resistance: Forms a protective Cr₂O₃ oxide layer at elevated temperatures.
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Fatigue & Creep Resistance: Ideal for dynamic/stress-loaded applications.
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Weldability & Fabrication: Compatible with common techniques (TIG, laser welding), but post-weld heat treatment may be needed.
4. Manufacturing Process
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Hot Extrusion: Billets are heated and extruded into hollow shells.
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Cold Drawing: Further precision sizing and surface finishing.
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Annealing: Solution annealing at 1100–1150°C to relieve stresses and optimize microstructure.
5. Applications
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Oil & Gas: Subsea pipelines, umbilicals, downhole tools.
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Aerospace: Jet engine exhausts, fuel systems.
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Chemical Processing: Reactors, heat exchangers, acid production.
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Marine: Propeller shafts, seawater handling systems.
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Nuclear/Power: Heat exchanger tubes, reactor components.
6. Standards & Specifications
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ASTM B444: Standard for seamless Inconel 625 pipes/tubes.
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ASME SB444: Pressure vessel applications.
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AMS 5666: Aerospace-grade specifications.
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NACE MR0175: Compliance for sour service (H₂S environments).
7. Advantages of Seamless Design
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No Welds: Eliminates weak points, ensuring uniform strength.
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High Pressure Resistance: Suitable for critical hydraulic/pneumatic systems.
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Smooth Surface: Reduces friction and improves fluid flow.
8. Limitations
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Cost: Higher than stainless steel or welded alternatives due to complex manufacturing.
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Machining Difficulty: Requires specialized tools (carbide or ceramic).
9. Comparison with Welded Tubes
| Feature | Seamless Tubes | Welded Tubes |
|---|---|---|
| Strength | Higher (no HAZ) | Slightly lower |
| Corrosion | Uniform resistance | Risk at weld seams |
| Cost | More expensive | Economical |
| Applications | Critical/high-pressure | General purpose |
10. Maintenance & Handling
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Avoid contamination (e.g., iron particles) to prevent galvanic corrosion.
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Clean with chloride-free solvents.
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Store in dry, non-corrosive environments.
Conclusion
Inconel 625 seamless tubes are a premium choice for extreme environments, combining longevity, strength, and versatility. Their seamless construction ensures reliability in mission-critical industries, justifying their premium cost.
Would you like additional details on specific aspects (e.g., mechanical data, supplier recommendations)?
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