Beryllium stress-relieved material, specified per AMS 7902, exhibits low density (1.85 g/cm³) with high specific stiffness and thermal conductivity, suited for aerospace and defense structural and thermal applications requiring weight minimization. The stress-relieved condition (achieved through controlled heating and surface finishing via grinding and etching) reduces residual stresses from prior processing while maintaining strength, providing improved dimensional stability and fracture toughness compared to as-worked conditions.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | 289.6 | GPa | 22°C · Bar/Tubing/Rod | ||
Elongation at Break(εf) | 1.000 – 10.00 | - | 8 entriesClick to expand | ||
Poisson's Ratio(ν) | 0.1000 | - | 22°C | ||
Shear Modulus(G) | 137.9 | GPa | 22°C · Bar/Tubing/Rod | ||
Ultimate Tensile Strength(σUTS) | 275.8 – 482.6 | MPa | 8 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 206.8 – 344.7 | MPa | 8 entriesClick to expand | ||
Young's Modulus(E) | 289.6 | GPa | 22°C · Bar/Tubing/Rod | ||
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 1.855 | kg/m³ | 22°C |