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Comparison of Physical Properties | ||||
Properties | Copper (Cu) | 45# Steel | Aluminum (Al) | 304 Stainless Steel |
Density (g/cm³) | 8.96 | 7.85 | 2.7 | 7.93 |
Melting Point (°C) | 1083 | ~1450-1500 | 660 | 1398-1454 |
Thermal Conductivity (W/m·K) | 393.5 | ~45-60 | 221.9 | 16.3 (at 100℃) |
Coefficient of Linear Expansion(10-6/℃) | 16.7 | ~11.7 | 23.6 | 17.2 (0-100℃) |
Comparison of Mechanical Properties | ||||
Properties | Copper (Pure Copper) | 45# Steel | Aluminum (6061) | 304 Stainless Steel (Annealed) |
Tensile Strength (MPa) | 200-300 | ~600-800 | 310 | ≥515 |
Yield Strength (MPa) | ~100-200 | ~350-500 | 276 | ≥205 |
Elongation (%) | 30-40 | ~15-20 | 10-20 | ≥40 |
Hardness (HB) | ~50-80 | ~150-200 | ~50-80 | ≤201 |







