| Property |
Specification |
| Material |
Ferrous or non-ferrous metals |
| Size |
1 to 10 feet (varies) |
| Shape |
Irregular: sheets, rods, wires, etc. |
| Density |
Steel: 7.85 g/cm³, Aluminum: 2.70 g/cm³ |
| Weight |
Varies from grams to tons |
| Surface |
May have rust, paint, or oil |
| Magnetism |
Ferrous: Magnetic, Non-ferrous: Non-magnetic |
| Moisture |
May contain moisture or oil |
| Color |
Silver, grey, copper-red |
| Impurities |
Dirt, rust, oil, etc. |
| Temperature |
Steel: High resistance, Aluminum: Lower melting point |
| Hardness |
Steel: Hard, Aluminum: Soft |
