Cold-rolled GH4169 Alloy Thick-walled Pipe
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
- Send E-mail: ss@gneesteel.com
- Tel: +8615824687445
Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of cold-rolled gh4169 alloy thick-walled pipe in China. If you're going to wholesale high quality cold-rolled gh4169 alloy thick-walled pipe made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
In high-stress industrial applications, conventional tubing simply cannot meet the demands. Our GH4169 (Inconel 718) thick-walled tubing is manufactured using a precision cold-rolling process. Compared to traditional hot rolling, this process yields a denser, more uniform grain structure, effectively preventing internal microcracks and stress corrosion-maintaining stability even under immense hydraulic or gas pressures.
GH4169 Thick-Walled Tubing Key Performance Data:
Ultra-High Pressure Rating: Designed to maintain structural integrity in high-pressure fluid transport and storage systems.
Extensive Wall Thickness Range: We offer an industry-leading range of wall thicknesses from 5mm to 25mm to meet the needs of a wide range of heavy-duty industrial applications.
Excellent Machinability: Thanks to our controlled solution annealing process, these tubing pieces are excellent hollow bars for CNC machining into rings, gaskets, threaded fittings, or high-strength fasteners.
Get a quote for custom GH4169 cold-drawn tubing
Cold Drawn High temperature Alloy GH4169 Tube introduce
Cold-rolled GH4169 alloy thick-walled tubes are high-performance nickel-based high-temperature alloy tubes designed for extreme environments, featuring high strength, excellent corrosion resistance, and superior fatigue resistance. They are widely used in critical applications such as gas turbines and aircraft engines.
precision GH4169 Tube Description
| Parameter | Specification Details |
| Material Grade | GH4169 (Equivalent to Inconel 718 / 2.4668) |
| Manufacturing Process | Cold Rolled / Cold Pilgered |
| Wall Thickness (WT) | 5.0mm – 25.0mm |
| Outer Diameter (OD) | 20mm – 219mm |
| Standard Compliance | ASTM B670, AMS 5589, GJB 2296A |
| Testing Protocols | 100% Ultrasonic (UT) & Hydrostatic Testing |
Alloy GH4169 Tube Specification
Inconel 718 Alloy Tube Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Inconel 718 | 0.08 max | 0.35 max | 0.35 max | 0.015max | 0.30 max | – | 50.00 – 55.00 | 17.00 – 21.00 |
UNS N07718 Tube mechanical properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Inconel 718 | 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 482 | 45 % |
Alloy GH4169 Tube Physical Properties
|
Solution Treated |
Solution Treated and Aged |
|
|---|---|---|
| Density |
0.296 lb/in3 (8.192 g/cm3) |
0.297 lb/in3 (8.22 g/cm3) |
| Specific Gravity |
8.19 |
8.22 |
| Melting Range |
2500-2600°F |
1370-1430°C |
Click to download the GH4169 alloy PDF file now
Common Cold Drawn GH4169 Tube Sizes
| OD (mm) | OD (in) | Wall Thickness (mm) | Wall Thickness (in) | Typical Application |
|---|---|---|---|---|
| 25.4 | 1.000 | 5.0 | 0.197 | High-pressure lines |
| 38.1 | 1.500 | 7.5 | 0.295 | Structural components |
| 50.8 | 2.000 | 10.0 | 0.394 | Heavy hydraulic lines |
| 76.2 | 3.000 | 12.5 | 0.492 | Nuclear components |
| 101.6 | 4.000 | 15.0 | 0.591 | Pressure vessels |
| 152.4 | 6.000 | 20.0 | 0.787 | Heavy-wall mechanical tubing |
| 203.2 | 8.000 | 25.0 | 0.984 | Large diameter thick wall |
| 254.0 | 10.000 | 30.0 | 1.181 | Special applications |
Contact us to customize GH4169 products to fit your project dimensions
Main Applications of GH4169 Thick-walled Pipe
Oil & Gas: High-pressure downhole tools and subsea valve assemblies.
Aerospace: Engine mounting rings and heavy-duty structural supports.
Chemicals: Thick-walled reactor and high-pressure heat exchanger shells.
Machining: Used as seamless hollow bars to reduce material waste in the production of complex nickel alloy parts.
GH4169 Non-destructive Testing (NDT) Requirements for Tubes
Gnee Alloy as a trusted supplier, Gnee Steel adheres to a "zero-defect" principle. Every GH4169 seamless pipe undergoes a rigorous inspection process before shipment.
| Test Method | Requirement | Standard | Notes |
|---|---|---|---|
| Ultrasonic Testing (UT) | 100% (mandatory for heavy wall) | ASTM E213 | Longitudinal and transverse waves |
| Eddy Current Testing (ET) | 100% | ASTM E426 | Surface inspection |
| Hydrostatic Test | 100% | ASME Section VIII | Minimum test pressure per code |
| Liquid Penetrant Inspection (LPI) | As specified | ASTM E1417 | Surface crack detection |
| Visual Inspection | 100% | ASTM E543 | ID and OD inspection |
| Borescope Inspection | 100% | – | For small diameter heavy wall tubes |
GNEE Group GH4169 superalloy Packaging
GNEE Group GH4169 superalloy Packaging
Contact us to choose your preferred packaging and shipping method
Why Choose Gnee Steel's GH4169 Tubing?
💼 Advantages of Choosing Gnee Steel GH4169 Pipes
As a factory-direct manufacturer of GH4169 steel pipes, Gnee Steel is committed to bridging the gap between high-end aerospace technology and industrial costs.
✅️Cost-effectiveness: By sourcing directly, you bypass intermediaries and ensure your projects receive the most competitive factory prices.
✅️In-stock inventory: We maintain strategic stock of commonly used thick-walled sizes, ensuring rapid export to Russia, Europe, and Asia.
✅️Customization services: Need non-standard wall thicknesses? Our factory can customize production to meet your specific pressure requirements.
GH4169 certificate
Click to view our professional certificates for GH4169 alloy
FAQ
Q: Can these heavy-wall pipes be used as hollow bar stock for machining?
A: Absolutely. Many of our clients utilize our GH4169 pipes as premium hollow bar material. By choosing a pipe size close to your finished part dimensions, you significantly reduce CNC machining time and minimize expensive nickel alloy scrap.
Q: What specific testing do you perform on heavy-wall sections to ensure safety?
A: Thick-walled sections require rigorous verification. We perform 100% Ultrasonic Testing (UT) to detect internal inclusions and Hydrostatic Testing to confirm the pipe can handle its rated pressure without deformation or leakage.
Q: Do you offer bulk discounts for long-term industrial projects?
A: Yes. We specialize in wholesale supply for large-scale energy and industrial infrastructure projects. Contact our sales team for a tiered discount schedule based on your annual volume.
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