AMS 5589 GH4169 Nickel Alloy Seamless Tube
We offer high-performance GH4169 (Inconel 718) seamless tubing that meets AMS 5589 standards.
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 ams 5589 gh4169 nickel alloy seamless tube in China. If you're going to wholesale high quality ams 5589 gh4169 nickel alloy seamless tube made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Gnee Steel, a leading manufacturer of GH4169 seamless steel tubing, specializes in producing high-precision nickel-based alloy steel tubing designed for the most demanding aerospace and defense applications. Our AMS 5589 GH4169 / Inconel 718 steel tubing, processed with solution annealing, achieves an optimal balance between high-temperature strength (up to 700°C), excellent weldability, and superior oxidation resistance.
Whether you are designing advanced aero-engine fuel lines or high-stress structural components, our tubing ensures unparalleled reliability and long-term performance in extreme environments.
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GNEE GH4169 seamless Pipe introduce
AMS 5589 specifies the requirements for seamless GH4169 (Inconel 718) nickel alloy tubing, designed for high-strength, corrosion-resistant aerospace applications, with a maximum operating temperature of 1300°F (704°C). As an age-hardening superalloy, it is commonly used in jet engine components, fasteners, and high-temperature hydraulic lines. Its key properties include high tensile strength and creep rupture strength.
AMS 5589 GH4169 Tube Description
| Property | Value / Details |
| Material Grade | GH4169 (Equivalent to Inconel 718, UNS N07718, 2.4668) |
| Standard Compliance | AMS 5589, ASTM B670, GJB 2296A |
| Outer Diameter (OD) | 3mm – 219mm (Customizable) |
| Wall Thickness (WT) | 0.5mm – 20mm |
| Condition | Solution Annealed & Precipitation Hardened (Optional) |
| Mechanical Properties | High Tensile Strength (>1035 MPa), Excellent Fatigue Life |
| Testing | 100% Eddy Current / Ultrasonic / Hydrostatic Test |
Note: AMS 5589 standard covers Inconel 718 seamless tubing for aerospace applications. This material must be produced using a vacuum induction melting (VIM) process, followed by vacuum arc remelting (VAR) or electroslag remelting (ESR).
GNEE GH4169 Tube Specification Sheet
Chemical Composition (wt%) – per AMS 5589 (UNS N07718)
| Element | Content (%) | Standard Requirement | Notes |
|---|---|---|---|
| Nickel (Ni) | 50.0 – 55.0 | 50.0 – 55.0 | Matrix element |
| Chromium (Cr) | 17.0 – 21.0 | 17.0 – 21.0 | Oxidation and corrosion resistance |
| Iron (Fe) | Balance (~18-20) | Balance | Fe-Ni-Cr base alloy |
| Niobium (Nb) | 4.75 – 5.50 | 4.75 – 5.50 | Primary γ″ strengthening element |
| Molybdenum (Mo) | 2.80 – 3.30 | 2.80 – 3.30 | Solid-solution strengthening |
| Titanium (Ti) | 0.65 – 1.15 | 0.65 – 1.15 | Forms γ′ strengthening phase |
| Aluminum (Al) | 0.20 – 0.80 | 0.20 – 0.80 | Forms γ′ strengthening phase |
| Carbon (C) | ≤ 0.08 | ≤ 0.08 | Low carbon for weldability |
| Manganese (Mn) | ≤ 0.35 | ≤ 0.35 | Deoxidizer |
| Silicon (Si) | ≤ 0.35 | ≤ 0.35 | Deoxidizer |
| Phosphorus (P) | ≤ 0.015 | ≤ 0.015 | Low for toughness |
| Sulfur (S) | ≤ 0.015 | ≤ 0.015 | Low for hot workability |
| Boron (B) | 0.002 – 0.006 | 0.002 – 0.006 | Grain boundary strengthener |
| Cobalt (Co) | ≤ 1.00 | ≤ 1.00 | Residual element |
| Copper (Cu) | ≤ 0.30 | ≤ 0.30 | Residual element |
| Tantalum (Ta) | ≤ 0.05 | ≤ 0.05 | Residual element |
| Lead (Pb) | ≤ 0.0005 | ≤ 0.0005 | Trace element control |
| Bismuth (Bi) | ≤ 0.00003 | ≤ 0.00003 | Trace element control |
Physical properties of GH4169 tube
| Property | Value | Notes |
|---|---|---|
| Density | 8.19 g/cm³ | – |
| Melting Range | 1260 – 1336°C | – |
| Thermal Conductivity (20°C) | 11.4 W/m·K | – |
| Thermal Conductivity (500°C) | ~16.0 W/m·K | – |
| Coefficient of Thermal Expansion (20-100°C) | 13.0 × 10⁻⁶/°C | – |
| Coefficient of Thermal Expansion (20-600°C) | ~14.5 × 10⁻⁶/°C | – |
| Specific Heat (20°C) | 435 J/kg·K | – |
| Modulus of Elasticity (20°C) | ~200 GPa (29.0 × 10⁶ psi) | – |
| Modulus of Elasticity (600°C) | ~175 GPa | – |
| Poisson's Ratio | 0.29 – 0.30 | – |
| Electrical Resistivity | 1.25 µΩ·m | – |
| Magnetic Permeability | 1.005 (slightly magnetic) | – |
High-temperature mechanical properties of GH4169 alloy tubes (solution treatment + aging treatment)
| Temperature (°C) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Test Standard |
|---|---|---|---|---|
| 20 (Room Temp) | ≥ 1275 | ≥ 1035 | ≥ 12 | ASTM E8 |
| 300 | ~1200 | ~1000 | ~15 | ASTM E21 |
| 400 | ~1180 | ~980 | ~15 | ASTM E21 |
| 500 | ~1150 | ~950 | ~16 | ASTM E21 |
| 600 | ~1100 | ~900 | ~18 | ASTM E21 |
| 650 | ~1000 | ~850 | ~20 | ASTM E21 |
| 700 | ~850 | ~750 | ~22 | ASTM E21 |
| 760 | ~600 | ~550 | ~25 | ASTM E21 |
Click to download the GH4169 alloy PDF file now
AMS 5589 GH4169 seamless tube dimensions and specifications
| Parameter | Range | Tolerance (AMS 5589) |
|---|---|---|
| Outside Diameter (OD) | 1.0 mm – 50.8 mm (0.040″ – 2.000″) | ±0.025 – ±0.050 mm |
| Wall Thickness | 0.15 mm – 3.0 mm (0.006″ – 0.120″) | ±5% – ±10% |
| Length | Up to 15,000 mm | ±3 mm |
| OD Ovality | – | ≤ 0.75% of OD |
| Wall Concentricity | – | ≤ 10% of wall thickness |
| Straightness | – | ≤ 0.5 mm/m |
Common AMS 5589 Tube Sizes
| OD (in) | OD (mm) | Wall Thickness (in) | Wall Thickness (mm) | Typical Application |
|---|---|---|---|---|
| 0.125 | 3.18 | 0.020 | 0.51 | Instrumentation |
| 0.188 | 4.78 | 0.028 | 0.71 | Hydraulic lines |
| 0.250 | 6.35 | 0.035 | 0.89 | Fuel systems |
| 0.375 | 9.53 | 0.042 | 1.07 | Bleed air |
| 0.500 | 12.70 | 0.049 | 1.24 | High-pressure hydraulic |
| 0.625 | 15.88 | 0.065 | 1.65 | Structural lines |
Contact us to customize GH4169 products to fit your project dimensions
Main Applications of GH4169 Seamless Steel Tubes in the Aerospace Industry
Aircraft Engine Components: Fuel manifolds, nozzles, and hydraulic lines.
Gas Turbines: High-pressure structural shells and internal piping.
Spacecraft Engineering: Rocket engine thrust chambers and cooling systems.
Nuclear Energy: Heat exchanger piping in high-radiation environments.
GH4169 seamless pipe quality inspection specifications
As a trusted supplier, Gnee Steel adheres to a "zero-defect" principle. Every GH4169 seamless pipe undergoes a rigorous inspection process before shipment.
Eddy Current Testing (ET): Used to detect minute cracks and defects on and near the surface of pipes.
Ultrasonic Testing (UT): For thick-walled or pressure-critical pipes, it detects deep defects such as internal inclusions and porosity, conforming to AMS 2630 requirements.
Hydrostatic Testing: Each pipe must undergo high-pressure hydrostatic testing to ensure no leakage or deformation under rated operating pressure.
GNEE Group GH4169 superalloy Packaging
GNEE Group GH4169 superalloy Packaging
Contact us to choose your preferred packaging and shipping method
Why do global aerospace engineering companies choose Gnee Steel's Inconel 718 tubing?
✅️Factory Direct: Eliminate intermediaries. We offer the most competitive wholesale prices for bulk orders, ensuring your project budget remains within reasonable limits.
✅️Quality Certification: Every shipment comes with a Factory Test Certificate (MTC) conforming to EN 10204 3.1, providing full traceability from raw materials to finished tubing.
✅️Custom Processing and OEM Services: We offer precision cutting, professional deburring, and custom length services to meet your specific assembly requirements.
✅️Experience Exporting to Russia and Global Markets: We have extensive experience handling customs clearance and logistics in the Russian aerospace sector and can provide all necessary compliance documentation.
GH4169 certificate
Click to view our professional certificates for GH4169 alloy
FAQ
Q: Is your AMS 5589 GH4169 tube suitable for aero-engine casings?
A: Yes, our tubes meet the strict metallurgical and grain-size requirements mandated by AMS 5589, making them ideal for aero-engine structural components and fluid delivery systems.
Q: What is the lead time for bulk orders?
A: Standard sizes are typically in stock for immediate shipment (7-day delivery). For custom production runs, our lead time ranges from 4 to 6 weeks depending on quantity and specification.
Q: Can you provide GH4169 tubes with specific tolerances for hydraulic systems?
A: Absolutely. We use advanced cold-drawing and cold-rolling processes to achieve ultra-tight tolerances that exceed standard industry requirements.
Q: Do you support third-party inspections?
A: Yes, we welcome third-party inspections (SGS, BV, TUV) at our factory to verify chemical composition and mechanical properties before shipment.
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