AerMet 100 is a high-strength martensitic steel alloyed with cobalt, nickel, molybdenum, and chromium, designed for critical aerospace structural and fastener applications requiring exceptional strength-to-weight ratios at service temperatures to 350°F. The STA condition (solution treated and aged) achieves ultimate tensile strengths of ~280 ksi with good fracture toughness and fatigue resistance, making it suitable for landing gear, airframe fittings, and high-performance fasteners in military aircraft.
Compliance & Regulations
15 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 432 – 581 | ksi | 6 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 361 – 442 | ksi | 6 entriesClick to expand | ||
Compressive Modulus(Ec) | 28,100 | ksi | 22°C · Bar/Forging | ||
Compressive Tangent Modulus vs Stress(Etn(σ))4 entries | Curve (11 pts) | ksi | 21°C · L | ||
| ↳ | Curve (11 pts) | ksi | 21°C · ST | ||
| ↳ | Curve (30 pts) | ksi | 21°C · L | ||
| ↳ | Curve (30 pts) | ksi | 21°C · ST | ||
Compressive Yield Strength(Fcy) | 262 – 281 | ksi | 6 entriesClick to expand | ||
Elongation at Break(εf) | 8.000 – 10.00 | - | 6 entriesClick to expand | ||
Poisson's Ratio(ν) | 0.3050 | - | 22°C | ||
Reduction of Area(RA) | 35.00 – 55.00 | - | 6 entriesClick to expand | ||
Ultimate Shear Strength(Fsu)3 entries | 174 | ksi | 22°C · Bar/Forging · Solution treated and aged · AMS 6532 · t=≤10.000 in | ||
| ↳ | 177 | ksi | 22°C · Bar/Forging · Solution treated and aged · AMS 6532 · t=≤10.000 in | ||
| ↳ | 182 | ksi | 22°C · Bar/Forging · Solution treated and aged · AMS 6478 · t=≤10.000 in | ||
Stress–Strain Curve(σ–ε)3 entries | Curve (21 pts) | ksi | 21°C · L | ||
| ↳ | Curve (12 pts) | ksi | 21°C · L | ||
| ↳ | Curve (12 pts) | ksi | 21°C · ST | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | — | ksi | 8 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | 275 – 290 | ksi | 8 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 235 – 247 | ksi | 8 entriesClick to expand | ||
Young's Modulus(E) | 28,000 | ksi | 22°C · Bar/Forging | ||
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2850 | lb/in³ | 22°C |