GH4169 Thin-Walled Seamless Tube For Aerospace
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of gh4169 thin-walled seamless tube for aerospace in China. If you're going to wholesale high quality gh4169 thin-walled seamless tube for aerospace made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Standard tubing often adds unnecessary weight to the fuselage and engine. Our precision-designed GH4169 thin-walled seamless tubing offers exceptional strength-to-weight ratio. Through multi-pass cold rolling and intermediate vacuum annealing processes, our Gnee Steel tubing is lighter than equivalent titanium alloy tubing in high-temperature zones, yet far stronger than stainless steel tubing.
Precision Manufacturing Highlights:
Concentricity: Excellent wall thickness uniformity, controlled within ±5%.
Surface Finish: Mirror-smooth inner bore surface (Ra ≤ 0.4μm), optimizing flow dynamics for zero turbulence.
Ultra-thin Capability: Seamless production of tubing with wall thicknesses as low as 0.25mm.
Click to get consultation on weight reduction of GH4169 thin-walled tubes
GH4169 Thin-Walled Tube for Aerospace description
GH4169 (similar to Inconel 718) thin-walled seamless tubing is a critical material for aerospace applications, particularly in aircraft engine piping systems, air inlets, and bellows, due to its excellent high-temperature strength, corrosion resistance, and stability over a temperature range of -253 to 650°C. These tubing materials often require hydroforming to manufacture complex components, demanding high ductility. This high ductility is achieved through precise annealing, typically performed at around 960 to 1040°C to soften the cold-worked material.
Thin-Walled GH4169 Tube Description
| Parameter | Description |
|---|---|
| Material | GH4169 (UNS N07718 / Inconel 718) |
| Product Form | Thin Wall Seamless Tube (Weight Reduction Design) |
| Wall Thickness | Ultra-thin wall – typically 0.15 mm – 1.0 mm (0.006″ – 0.040″) |
| Design Goal | Maximum strength-to-weight ratio for aviation weight reduction |
| Applicable Standards | AMS 5590 (Thin Wall), AMS 5589, ASTM B983, GB/T 14994 |
GH4169 seamless Tube Specification
GH4169 Pipe Chemical Composition
| Ni | Cr | Nb | Mo | Ti | Al | Co | Fe |
| 50.0-55.0 | 17.0-21.0 | 4.75-5.50 | 2.80-3.30 | 0.65-1.15 | 0.20-0.80 | ≤ 1.0 | Bal. |
GH4169 Thin-walled Tube Mechanical Properties
| Wall Thickness | Tensile Strength (Rm) | Yield Strength (Rp0.2) | Elongation (A5) | Hardness (HRC) |
| ≤ 1.0 mm | ≥ 1275 MPa | ≥ 1030 MPa | ≥ 12 % | 36 - 44 |
GH4169 tube physical performance specifications
| Property | Value |
| Density (g/cm³) | 8.19 |
| Melting Range (°C) | 1260 - 1340 |
| Thermal Conductivity (W/m·K) | 11.4 (at 100°C) |
| Coefficient of Thermal Expansion | 13.0 (10⁻⁶/°C at 20-100°C) |
Click to download the GH4169 alloy PDF file now
Common Dimensions of GH4169 Aerospace Pipes
| Outer Diameter (OD) | Wall Thickness (WT) | Tolerance (OD) | Tolerance (WT) |
| 3.0 mm - 10.0 mm | 0.25 mm - 0.5 mm | ± 0.03 mm | ± 5 % |
| 12.0 mm - 25.0 mm | 0.4 mm - 0.8 mm | ± 0.05 mm | ± 5 % |
| 30.0 mm - 50.0 mm | 0.6 mm - 1.0 mm | ± 0.08 mm | ± 8 % |
Contact us to customize GH4169 products to fit your project dimensions
Main Applications of GH4169 Pipe
Our thin-walled GH4169 tubing is the industry standard in the following fields:
Engine cooling systems: heat exchanger tubes and cooling jackets.
Ventilation and ducting: lightweight air delivery piping for high-temperature areas.
Sensing and instrumentation: pitot tubes, pressure sensors, and capillary tubes.
Rocket engineering: lightweight propellant delivery and thrust chamber cooling.
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.
| Stage | Process | Objective |
| Initial | VIM + ESR Melting | Ensure ultra-high purity & grain refinement |
| Forming | Multi-pass Cold Rolling | Achieve ultra-thin walls and tight tolerances |
| Treatment | Vacuum Annealing | Relieve stress without surface oxidation |
| Finishing | Precision Straightening | Ensure perfect alignment for aerospace assembly |
| Quality | 100% Ultrasonic + Eddy Current | Guarantee zero defects in thin cross-sections |
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?
As a leading exporter of GH4169 thin-walled superalloy, Gnee Steel serves Tier 1 and Tier 2 aerospace suppliers worldwide.
✅️Wholesale Prices: Highly competitive pricing for bulk lightweight projects.
✅️Expertise in the Russian and CIS Markets: Providing specialized logistics and documentation services for the Russian aerospace sector (compliant with equivalent standards of the Russian State Aerospace Technical Committee (GOST)).
✅️Quality Certifications: Manufactured according to AS9100/ISO 9001 standards and compliant with AMS 5589/AMS 5590 standards.
GH4169 certificate
FAQ
Q: How thin can you manufacture GH4169 seamless tubes?
A: Depending on the outer diameter, we can achieve a wall thickness as low as 0.25mm to 0.5mm. These ultra-thin walls are specifically optimized for weight-sensitive aerospace cooling systems.
Q: Is the material certified for aerospace use?
A: Yes. All our thin-wall tubes are delivered with full Mill Test Certificates (MTC) and are produced in facilities certified to AS9100, meeting international aerospace standards like AMS 5589.
Q: Does the thin wall compromise the pressure resistance?
A: While the wall is thinner, the high tensile strength of GH4169 (over 1275 MPa) allows these tubes to handle significantly higher pressures than thicker-walled stainless steel tubes.
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