Stainless steel alloys are selected for aerospace applications due to their key properties:

• High Strength & Toughness – Ensures structural integrity in demanding aerospace applications.
• Corrosion & Oxidation Resistance – Withstands exposure to extreme environments and chemicals.
• High-Temperature Performance – Retains strength and stability under thermal stress.
• Fatigue & Wear Resistance – Enhances durability in aerospace structural components.

1. 17-4 PH Stainless Steel

• Applications: Aerospace fasteners, structural components, and landing gear.
• Chemical Composition:
• Chromium (Cr): 15.0-17.5%
• Nickel (Ni): 3.0-5.0%
• Copper (Cu): 3.0-5.0%
• Iron (Fe): Balance
• Niobium (Nb): 0.15-0.45%
• Standards: AMS 5643, ASTM A564

2. 15-5 PH Stainless Steel

• Applications: Actuator components, landing gear, and high-strength aerospace parts.
• Chemical Composition:
• Chromium (Cr): 14.0-15.5%
• Nickel (Ni): 3.5-5.5%
• Copper (Cu): 2.5-4.5%
• Iron (Fe): Balance
• Standards: AMS 5659, ASTM A564

3. 316L & 316LVM Stainless Steel

• Applications: Aerospace medical applications, corrosion-resistant structural parts, and aircraft tubing.
• Chemical Composition:
• Chromium (Cr): 16.0-18.0%
• Nickel (Ni): 10.0-14.0%
• Molybdenum (Mo): 2.0-3.0%
• Iron (Fe): Balance
• Carbon (C): 0.03% max
• Standards: AMS 5507, ASTM F138

4. 420 Stainless Steel

• Applications: Aerospace bearings, cutting tools, and turbine components.
• Chemical Composition:
• Chromium (Cr): 12.0-14.0%
• Carbon (C): 0.15-0.40%
• Iron (Fe): Balance
• Standards: AMS 5621, ASTM A276

5. Nitronic 60 Stainless Steel

• Applications: Aerospace wear-resistant components, fasteners, and high-strength parts.
• Chemical Composition:
• Chromium (Cr): 16.0-18.0%
• Nickel (Ni): 8.0-9.0%
• Manganese (Mn): 7.0-9.0%
• Silicon (Si): 3.5-4.5%
• Iron (Fe): Balance
• Standards: AMS 5863, ASTM A240

Stainless steel alloys used in aerospace applications must adhere to strict industry standards for quality and safety:

• ASTM (American Society for Testing and Materials) – Defines material composition and performance specifications.
• AMS (Aerospace Material Specifications) – Establishes specific aerospace material requirements.
• MIL-S (Military Specifications for Stainless Steel Alloys) – Governs stainless steel use in military aerospace applications.
• ISO (International Organization for Standardization) – Ensures global compliance and quality control.

Stainless steel alloys are indispensable for aerospace applications requiring strength, corrosion resistance, and thermal stability. Aries Alloys provides high-quality aerospace-grade stainless steels, ensuring compliance with international standards for optimal performance in aviation and space exploration.
For more information on our stainless steel alloy inventory, contact Aries Alloys today!