SAE AMS 5589 high-temperature alloy GH4169 corrosion-resistant pipe
SAE AMS 5589 high-temperature alloy GH4169 corrosion-resistant pipe
SAE AMS 5589 refers to a corrosion-resistant, heat-resistant seamless steel pipe made of a nickel-based alloy; specifically, it is equivalent to Inconel 718 (GH4169). This steel pipe is renowned for its high strength and excellent corrosion resistance, making it suitable for high-temperature applications such as aerospace components. However, for demanding projects, it is essential to confirm the specific grade and specifications (e.g., AMS 5589G) and apply for certification.
What is GH4169?
GH4169 is a nickel-chromium alloy containing significant amounts of iron, niobium, and molybdenum, as well as small amounts of aluminum and titanium. It is known for its high strength, excellent corrosion resistance, and good weldability. It is commonly used in gas turbines and jet engines.
Chemical composition of GH4169 alloy Tube(%)
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 50.0 – 55.0 |
| Chromium (Cr) | 17.0 – 21.0 |
| Iron (Fe) | Balance |
| Molybdenum (Mo) | 2.8 – 3.3 |
| Niobium (Nb) + Tantalum (Ta) | 4.75 – 5.5 |
| Titanium (Ti) | 0.65 – 1.15 |
| Aluminum (Al) | 0.2 – 0.8 |
| Cobalt (Co) | ≤ 1.0 |
| Manganese (Mn) | ≤ 0.35 |
| Silicon (Si) | ≤ 0.35 |
| Sulfur (S) | ≤ 0.015 |
| Phosphorus (P) | ≤ 0.015 |
| Carbon (C) | ≤ 0.08 |
| Copper (Cu) | ≤ 0.3 |
| Boron (B) | 0.001 – 0.006 |
Physical properties of GH4169 alloy Pipe
| Property | Value |
|---|---|
| Density | 8.19 g/cm³ |
| Melting Point | 1260 – 1320 °C |
| Thermal Conductivity | 11.2 W/m·K (at 20°C) |
| Specific Heat Capacity | 435 J/kg·K (at 20°C) |
| Electrical Resistivity | 1.25 µΩ·m (at 20°C) |
| Coefficient of Thermal Expansion | 13.0 x 10⁻⁶ /°C (20 – 100°C) |
| Young's Modulus | 204 GPa |
| Poisson's Ratio | 0.29 |
Mechanical properties of GH4169 alloy Pipe
| Property | Value |
|---|---|
| Tensile Strength (Ultimate) | 965 – 1110 MPa |
| Yield Strength (0.2% Offset) | 550 – 725 MPa |
| Elongation at Break | 12 – 25% |
| Hardness | 331 – 370 HB (Brinell Hardness) |
| Impact Toughness (Charpy V-notch) | > 100 J |
| Creep Rupture Strength (650°C, 23.5 MPa) | 23.5 MPa after 1000 hours |
| Fatigue Strength | 620 MPa (at 10⁷ cycles) |
Manufacturing and Specifications Details
Standard: AMS 5589 is the standard for seamless steel pipes.
Smelting Process: Consumable electrode remelting or vacuum induction melting is used to ensure high quality.
Heat Treatment: The steel pipes require solution heat treatment.
Form: Primarily produced as seamless steel pipes, welded steel pipes are also available upon request.
Applications
Aerospace (e.g., jet engines, rocket engines)
Gas turbines
Nuclear components
Cryogenic applications
High-strength bolted connections
Downhole oil and gas equipment
Why Choose Gnee Nickel Alloy (Supplier Example)?
✅ Large stock of GH 4169 stainless steel strip/coil available for fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), Chemical Composition Certificate, and Mechanical Properties Certificate.
✅ Value-added services: Slitting, Cutting, Polishing, Surface Treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export documentation.
Email: ss@gneemetal.com
Gnee Steel is a professional manufacturer of various nickel-based alloys. Gnee Steel's product packaging includes: steel strapping: pipes with an outer diameter not exceeding 3 inches are typically bundled together with polypropylene film to prevent rusting during sea transport and then secured with steel straps; wooden crates/crates: pipes are usually packaged in wooden crates or crates for protection during transport, especially for longer or larger diameter pipes; seaworthy export packaging: suppliers typically use standard seaworthy export packaging methods, which may include various materials and techniques to protect pipes during transport; and tarpaulin packaging: to prevent rainwater, seawater, etc., from seeping into the export wooden crate packaging during transport. Gnee Steel specializes in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy fields, and customized alloy material solutions can be provided according to customer needs. For alloy material price inquiries or to obtain customized alloy material solutions, please feel free to contact us at ss@gneemetal.com for a quote.
