ASTM B408 GH3625 Thin-walled alloy tubing for aerospace exhaust systems
ASTM B408 GH3625 Thin-walled alloy tubing for aerospace exhaust systems
ASTM B408 GH3625 thin-walled alloy tubing is a high-strength, corrosion-resistant nickel-based alloy suitable for aerospace exhaust systems due to its ability to withstand high temperatures and mechanical stress. This alloy is heat-treatable, and specific grades are selected based on the high reliability and durability requirements of applications such as engines and exhaust components. Key considerations include its specific mechanical properties, corrosion and oxidation resistance, dimensional stability, and the manufacturing processes and testing requirements necessary to meet aerospace industry standards.
What metal is GH3625 high-temperature alloy seamless tube?
GH3625 high-temperature alloy seamless tube is a nickel-based superalloy tube. The matrix is primarily Ni, supplemented with elements such as Cr, Mo, Nb, and Ti. It possesses excellent high-temperature strength, oxidation resistance, and corrosion resistance, specifically designed for piping and turbine components operating in high-temperature conditions. It maintains stable creep performance in environments above 700℃ and exhibits good resistance to chloride ion corrosion. It is commonly used in turbine exhaust pipes, heat exchangers, and chemical reactors. GH3625 high-temperature alloy seamless tube is manufactured with a seamless structure, avoiding weld stress sources and facilitating the resistance to thermal cycling and high-temperature stress.
GH3625 thin-walled alloy tubing is a high-performance material designed specifically for aerospace exhaust systems and conforms to ASTM B408 standards. These alloy tubings exhibit excellent oxidation resistance, corrosion resistance, and thermal stability, making them ideal for extreme conditions such as aircraft engine exhaust systems.
Product Characteristics
GH3625 alloy tubing is made from advanced nickel-based alloy materials, possessing excellent mechanical properties and high-temperature resistance. Its thin-walled design (0.5mm to 3mm wall thickness) ensures lightweight and durability, meeting the aerospace industry's demand for lightweight, high-strength materials.
Material Type: Nickel-based alloy
Wall Thickness Range: 0.5mm–3mm
Applications: Aerospace, aircraft engines, exhaust systems
Standard: ASTM B408
Temperature Resistance: Suitable for high-temperature environments
Oxidation Resistance: Excellent high-temperature oxidation resistance
Corrosion Resistance: Good corrosion resistance, especially under high temperature and high humidity conditions
GH3625 Thin-walled alloy tubing Chemical Composition
| Carbon (C) | ≤0.1 |
| Manganese (Mn) | 3.15-4.15 |
| Iron (Fe) | ≤0.5 |
| Nickel (Ni) | Rest |
| Cobalt (Co) | ≤1.0 |
| Aluminum (Al) | ≤0.4 |
| Titanium (Ti) | ≤0.4 |
| Chromium (Cr) | 20-23 |
| Molybdenum (Mo) | 8-10 |
GH3625 Thin-walled alloy tubing Physical & Mechanical Properties
| Alloy Grade | GH3625 |
| Density (g/cm³) | 8.44 |
| Melting Point (°C) | 1290-1350 |
| Electrical Resistivity (μΩ·m) | 1.28 |
| Coefficient of Lines Expansion (α×10⁻⁶/20~1000ºC) | 12.3 |
| Tensile Strength (Rm N/mm²) | 830 |
| Yield Strength (Rp 0.2N/mm²) | 410 |
| Elongation at Break A5 (%) | 30 |
| Brinell Hardness HBS | ≤290 |
| Thermal Conductivity λ (W/m·℃) | 12.1(100℃) |
| Specific Heat (J/kg·°C) | 430 |
| Modulus of Elasticity (GPa) | 205 |
| Shear Modulus (GPa) | 79 |
Aerospace Applications
Exhaust Systems: This tubing offers excellent high-temperature strength and durability, making it ideal for aerospace exhaust components.
Engine Components: Its heat and corrosion resistance make it suitable for other engine and airframe applications, such as piping and other high-performance systems.
Manufacturing: In the aerospace field, this material is typically formed using methods such as bulging, which are efficient and help maintain dimensional accuracy and component quality.
Why Choose Gnee Nickel Alloys (Supplier Example)?
✅ Large stock of GH3625 high-temperature alloy tubes/bars/plates/coils, fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), chemical composition certificate, and mechanical property certificate.
✅ Value-added services: slitting, cutting, polishing, surface treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export-required documents.
Email: ss@gneemetal.com
Gnee Steel is a supplier of GH3625 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with GH3625 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells GH3625, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
