Aerospace alloys are selected based on their mechanical properties, weight efficiency, and ability to withstand harsh conditions. The primary considerations for aerospace applications include:

• High Strength-to-Weight Ratio – Essential for fuel efficiency and performance.
• Corrosion & Oxidation Resistance – Ensures longevity in extreme environments.
• Fatigue & Creep Resistance – Withstands prolonged mechanical stress and high temperatures.
• Thermal Stability – Maintains integrity under rapid temperature fluctuations.
• Manufacturing Versatility – Compatible with machining, welding, and additive manufacturing techniques.

1. Titanium Alloys

• Titanium Grade 5 (Ti-6Al-4V): The most widely used titanium alloy, offering high strength, corrosion resistance, and lightweight properties.
• Titanium Grade 9 (Ti-3Al-2.5V): Preferred for hydraulic tubing due to its weldability and corrosion resistance.
• Titanium Grade 23 (Ti-6Al-4V ELI): Extra-low interstitial (ELI) variant with improved fracture toughness for critical aerospace components.
• Standards: ASTM B348, AMS 4928, AMS 4930, AMS 4911

2. Nickel-Based Alloys

• Inconel 718: Exceptional high-temperature strength and oxidation resistance for jet engines and turbine components.
• Inconel 625: Known for corrosion resistance and used in aerospace exhaust systems and fuel lines.
• Hastelloy X: High oxidation and creep resistance, making it ideal for combustion chambers and afterburners.
• Standards: AMS 5662, AMS 5663, ASTM B637, AMS 5589

3. Stainless Steel Alloys

• 17-4 PH Stainless Steel: Precipitation-hardened steel used in aerospace structural components and fasteners.
• 15-5 PH Stainless Steel: High strength and corrosion resistance for landing gear and actuator components.
• 316L & 316LVM: Used in aerospace medical applications and corrosion-resistant structural parts.
• Standards: AMS 5643, ASTM A564, AMS 5659

4. Aluminum Alloys

• Aluminum 2024: High-strength alloy commonly used in aircraft fuselage and wing structures.
• Aluminum 7075: One of the strongest aluminum alloys, ideal for aerospace frames and structural components.
• Aluminum 6061: Excellent corrosion resistance and weldability, used in aerospace fuel tanks.
• Standards: AMS 4037, ASTM B209, AMS 4121

5. Cobalt-Based Alloys

• Haynes 25 (L605): High-temperature strength and oxidation resistance, commonly used in aerospace turbine blades.
• MP35N: Exceptional corrosion resistance and high-strength, used in aerospace fasteners and springs.
• Standards: AMS 5759, ASTM F562, AMS 5537

To ensure reliability and safety, aerospace alloys must meet international and national regulatory standards, including:

• ASTM (American Society for Testing and Materials) – Standards for material properties and mechanical testing.
• AMS (Aerospace Material Specifications) – Defines material properties specific to aerospace applications.
• MIL-SPEC (Military Specifications) – Required for defense and military aerospace components.
• ISO (International Organization for Standardization) – Global quality management and material compliance.
• NADCAP (National Aerospace and Defense Contractors Accreditation Program) – Certification for special aerospace processes like welding and heat treatment.

Aerospace-grade alloys play a vital role in modern aviation and space exploration, offering superior mechanical properties, durability, and compliance with rigorous standards. Aries Alloys specializes in providing high-quality aerospace alloys, including Titanium, Nickel, Stainless Steel, and Cobalt-based materials, ensuring the highest levels of performance and reliability in aerospace applications.
For more details on our aerospace-grade alloy inventory, contact Aries Alloys today!