| No. | Material Property | Unit | GRPU Frames | Aluminum Alloy | Steel | Composite Material Advantage |
|---|---|---|---|---|---|---|
| 1 | Density | g/cm³ | 2.06 | 2.7 | 7.85 | Low density |
| 2 | Tensile Modulus (Longitudinal) | GPa | 48 | 70 | 210 | Better resilience |
| 3 | Tensile Strength | MPa | 1149 | 145 | 335 | High strength, not prone to plastic deformation |
| 4 | Volume Resistivity (Bulk) | ρ(Ω·cm) | 1 × 10¹⁴ | 3 × 10⁻⁶ | / | Excellent insulation |
| 5 | Coefficient of Thermal Expansion | /°C | 6 × 10⁻⁶ ~10 × 10⁻⁶ | 23 × 10⁻⁶ | / | Better match with glass, reduces micro-crack risk |
| 6 | Corrosion Resistance | / | High | Requires anodizing | Low | Strong adaptability to highly corrosive environments |
| 7 | Carbon Emission Value | KgCO₂e/Kg | 3.5 | 24.2 | / | Low carbon emissions |
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