AerMet 100: Ultra-High-Strength Steel for Aircraft Landing Gear
AMS 6532 · Published: 2026-06-02 · Updated: 2026-06-02
AerMet 100 is the US Navy standard for carrier aircraft landing gear — 15% higher fracture toughness than 300M at equivalent strength. KIC 115 vs 65 MPa√m for 300M. For F/A-18, F-35 landing gear, carrier arrestor hooks, helicopter rotor shafts....
AerMet 100 is the US Navy standard for carrier aircraft landing gear — 15% higher fracture toughness than 300M at equivalent strength. KIC 115 vs 65 MPa√m for 300M. For F/A-18, F-35 landing gear, carrier arrestor hooks, helicopter rotor shafts. The toughness advantage translates to longer inspection intervals for naval aviation.
Quick Facts
| Category | Alloy Steel |
| Standard | AMS 6532 |
| Density | 7890 kg/m³ |
| Yield Strength | 1,724 MPa |
| Tensile Strength | 1,965 MPa |
Global Equivalents & Cross-Reference
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Frequently Asked Questions
AerMet 100 vs 300M?
Toughness advantage (115 vs 65 MPa√m) justifies 3× cost for carrier-based aircraft where landing gear failure is catastrophic. For commercial, 300M remains standard.
References & International Standards
- ASTM International. Standard Specifications for Steel & Metal Alloys. astm.org
- International Organization for Standardization (ISO). Metallic Materials — Cross-Reference Database. iso.org
- American Iron and Steel Institute (AISI). Steel Grade Designations & Equivalents. steel.org
- European Committee for Standardization (CEN). EN Steel Standards & Numbering System. cencenelec.eu