Ductility is a measure of a material's ability to be drawn into thin wires. The more ductile a material, the thinner it can be drawn without breaking. Ductility is important for materials that are used for wires, cables, and other applications where flexibility is required.

Malleability is a measure of a material's ability to be hammered into thin sheets. The more malleable a material, the thinner it can be hammered without breaking. Malleability is important for materials that are used for foil, metal roofing, and other applications where thin sheets are required.

Luster is a measure of a material's ability to reflect light. The more lustrous a material, the more reflective it is. Luster is important for materials that are used for jewelry, mirrors, and other applications where a shiny appearance is desired.

Conductivity is a measure of a material's ability to conduct heat or electricity. The more conductive a material, the better it conducts heat or electricity. Conductivity is important for materials that are used for electrical wires, electrical circuits, and other applications where efficient heat or electricity conduction is required.