| Item | Atomic No. | Atomic wt. | Specific gravity | Melting point (°C) | Linear thermal expansion coefficient (/°C) | Specific heat (cal/gr/°C) | Thermal conductivity coefficient (cal/cm2/sec/°C/cm) | Specific electrical resistance (µOhm-cm) | Electrical conductivity (%IACA) | Young's modulus (kg/mm2) | Poisson's ratio Titanium | 22 | 47.90 | 4.5 | 1,568 | 8.4X10-6 | 0.124 | 0.041 | 55 | 3.1 | 10,850 | 0.34
| 18-8 Stainless | steel (SUS 304) ---- | ---- | 7.9 | 1,400 | ~1,420 17X10-6 | 0.12 | 0.039 | 72 | 2.4 | 20.403 | 0.3
| Aluminum | 13 | 26.97 | 2.7 | 660 | 23X10-6 | 0.21 | 0.49 | 2.7 | 64 | 7,050 | 0.33
| Magnesium | 12 | 24.32 | 1.7 | 650 | 25X10-6 | 0.24 | 0.38 | 4.3 | 40 | 4,570 | 0.35
| Nickel | 28 | 58.69 | 8.9 | 1,453 | 15X10-6 | 0.11 | 0.22 | 9.5 | 18 | 21,000 | 0.30
| Copper | 29 | 63.57 | 8.9 | 1,083 | 17X10-6 | 0.092 | 0.92 | 1,724 | 100 | 11,000 | 0.34
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