Inconel® Alloy Pipe (Inconel 600, 625, 718, etc.)
✓ Ultra-High Temperature Stability: Retains 550 MPa tensile strength at 650°C (1,202°F) (Inconel 625).
✓ Corrosion Immunity: Resists pitting in seawater (3.5% NaCl) and 20% HCl at 150°C (302°F).
✓ Thermal Fatigue Resistance: Withstands 15,000+ thermal cycles between **-200°C (-328°F)** and 1,100°C (2,012°F).
✓ Precision Manufacturing: Seamless pipes with **±0.1mm wall thickness tolerance** and Ra ≤0.8μm surface finish for leak-free systems.
Inconel® Alloy Pipe (Inconel 600, 625, 718, etc.)
Engineered for industries operating in extreme thermal, corrosive, and high-pressure environments, Inconel® alloy pipes are seamless or welded solutions optimized for aerospace, oil & gas, and nuclear applications. Utilizing nickel-chromium-molybdenum superalloys like Inconel 625 (Ni-58%, Cr-22%, Mo-9%), these pipes resist oxidation up to 1,200°C (2,192°F), chloride stress corrosion cracking (Cl-SCC), and sulfidation while maintaining structural integrity under 25,000 psi pressure. Certified to ASTM B704, ASME SB704, and NACE MR0175, they outperform stainless steel with 10x longer lifespan in aggressive conditions.
- Sizes: 1/8″–24″ (DN6–DN600)
- Wall Thickness: 0.5mm–50mm (seamless/welded)
- Surface Finishes: Annealed, Pickled, Electropolished (Ra ≤0.4μm)
- Pressure Rating: PN160 (1,600 PSI) at 600°C (1,112°F) (Inconel 625)
- Mechanical Properties (Inconel 625): Yield Strength ≥690 MPa | Tensile Strength ≥930 MPa | Elongation ≥30% | Hardness ≤250 HB
| Parameter Category | Inconel 600 | Inconel 625 | Inconel 718 | Inconel 800H |
|---|---|---|---|---|
| Material Standard | ASTM B167, AMS 5580 | ASTM B444, AMS 5599 | ASTM B637, AMS 5586 | ASTM B407, AMS 5871 |
| Chemical Composition (%) | Ni: ≥72, Cr: 14–17, Fe: 6–10, C: ≤0.15 | Ni: ≥58, Cr: 20–23, Mo: 8–10, Nb+Ta: 3.15–4.15, Fe: ≤5.0 | Ni: 50–55, Cr: 17–21, Nb+Ta: 4.75–5.50, Fe: ≤18.0, Mo: 2.8–3.3 | Ni: 30–35, Cr: 19–23, Fe: ≥39.5, Al: 0.15–0.6, Ti: 0.15–0.6 |
| Tensile Strength (MPa) | 550–720 (Annealed) | 930–1030 (Annealed) | 1240–1450 (Aged) | 585–750 (Annealed) |
| Yield Strength (MPa) | 240–345 (Annealed) | 517–690 (Annealed) | 1035–1240 (Aged) | 240–415 (Annealed) |
| Elongation (%) | ≥35 (in 50mm) | ≥35 (in 50mm) | ≥15 (in 50mm) | ≥30 (in 50mm) |
| Hardness | Rockwell B ≤90 | Rockwell B ≤96 | Rockwell C 35–45 | Rockwell B ≤85 |
| Density (g/cm³) | 8.47 | 8.44 | 8.19 | 8.00 |
| Melting Range (°C) | 1320–1370 | 1290–1350 | 1260–1336 | 1350–1400 |
| Thermal Conductivity (W/m·K) | 14.9 (20°C) | 12.0 (20°C) | 11.4 (20°C) | 12.5 (20°C) |
| Thermal Expansion (10⁻⁶/°C) | 13.3 (20–100°C) | 12.8 (20–100°C) | 13.0 (20–600°C) | 14.4 (20–100°C) |
| Max Service Temperature (°C) | 1100 (Oxidizing) | 980 (Oxidizing) | 700 (Long-Term) | 815 (Oxidizing) |
| Corrosion Resistance | Resists oxidation, chloride stress corrosion. | Excellent pitting/crevice resistance. | Resists oxidation and chloride stress cracking. | Good resistance to carburization and oxidation. |
| Heat Treatment | Annealing: 870–980°C (air cooling). | Solution Annealing: 1093–1177°C (rapid cooling). | Aging: 720°C (8h) after solution treatment. | Annealing: 980–1035°C. |
| Surface Finishes | Annealed & Pickled, Polished (Ra ≤0.8μm). | Same as Inconel 600. | Polished (Ra ≤0.6μm), Cold-Rolled. | Hot-rolled, Annealed, Descaled. |
| Pipe Dimensions | OD: 10.3–1200mm Wall Thickness: 1.24–50mm Length: 5–12m. | Same as Inconel 600. | OD: 10.3–600mm Wall Thickness: 1.24–30mm. | OD: 10.3–500mm Wall Thickness: 1.24–25mm. |
| Key Applications | Heat exchanger tubes, nuclear reactor piping, furnace components. | Aerospace exhaust systems, chemical processing pipes. | Jet engine fuel lines, high-pressure hydraulic systems. | Petrochemical furnace tubes, steam generators. |
Inconel® Alloy Pipe (Inconel 600, 625, 718, etc.) Applications
| Industry | Critical Use Cases | Inconel® Pipe Advantage |
|---|---|---|
| Aerospace | Jet engine exhaust ducts, fuel feed lines | 0.02mm oxidation depth after 1,000h at 1,100°C (2,012°F). |
| Oil & Gas | Sour gas pipelines, downhole tubing | Resists H₂S >10,000 ppm at 200°C (392°F). |
| Chemical Processing | HCl acid reactors, chlorine dioxide mixers | Withstands 1,200°C (2,192°F) in H₂S/CO-rich environments. |
| Nuclear | Reactor coolant channels, spent fuel systems | Immunity to radiation-induced embrittlement per ASME III. |
Inconel® Alloy Pipe (Inconel 600, 625, 718, etc.) Product Packaging
Inconel® Alloy Pipe (Inconel 600, 625, 718, etc.) (UNS N06625/N07718, ASTM B705/ASME SB-705 compliant) are engineered for critical applications in aerospace propulsion, nuclear reactors, and subsea oil & gas systems (operating up to 1,200°C). To safeguard their metallurgical integrity and dimensional precision during global transit, we deploy aerospace-certified packaging systems and thermal-controlled logistics compliant with AMS 5581, NACE MR0175, and ISO 9328-3 standards.
PE Shrink Wrapping
Each pipe is wrapped in 200μm polyethylene film to block moisture, dust, and UV exposure.
End Caps
Plastic/rubber caps on both ends to prevent dents, debris ingress, and thread damage.
Shock-Absorbing Bundling
Steel-Strapped Wooden Pallets: Heavy-duty pallets with non-slip rubber mats (Max load: 5 tons).
QR-coded tags
QR-coded tags linked to Mill Test Certificates (MTC), EN 10204 3.1 standards, and pipe batch history.
Inconel® Alloy Pipe (Inconel 600, 625, 718, etc.) Shipping
Sea transport
40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)
Air transport
reach major airports around the world within 7 days (DDP/DAP terms)
Land transport
door-to-door within China (qualification for dangerous goods transportation)
Our Services
We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.
Why Choose Us?
Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。
Full specifications and customization
Unlimited size, support non-standard cutting. Multiple surface treatments.
Professional capabilities
25 Years Of Focus On Metal Materials Science
Certification & Quality Assurance
Products comply with international standards such as ASTM, EN, JIS, etc., and are 100% tested from raw materials to finished products
Fast delivery & global supply
Global urgent orders are delivered within 15 days. One-stop service
FAQ
Q1: How does Inconel 625 differ from Incoloy 825 in acidic environments?
A: Inconel 625 excels in HCl and seawater corrosion resistance, while Incoloy 825 is ideal for sulfuric acid below 100°C.
Q2: What welding methods prevent sigma phase formation?
A: Use TIG (GTAW) with ERNiCrMo-3 filler, limit heat input to **≤1.2 kJ/mm**, and post-weld heat treat at 1,150°C (2,102°F).
Q3: Are pipes certified for aerospace fuel systems?
Full compliance includes:
- AMS 5599/AMS 5362 (aerospace standards)
- ASME Section III Nuclear Components
- NACE MR0175/ISO 15156 (sour service)
Q4: What’s the minimum order quantity (MOQ)?
Standard stock: 1 ton MOQ.
Custom sizes/tempers: 5 tons MOQ (lead time 35 days).
Q5: How to validate material authenticity?
Scan NFC tags with AlloyGuard™ app to access:
- XRF validation against PMI certificates
- Third-party SGS/BV hydrotest data
- Blockchain-validated EN 10204 3.1 certifications
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