Variously described as a "screaming" or "crackling" sound, the effect is caused by the crystal twinning in the metal.
It is very noticeable when a hot-dip tin coated sheet metal is bent at high speed over rollers during processing.
A bar of tin will "cry" repeatedly when bent until it breaks.
The low melting point of tin, 231.9 °C (449.4 °F; 505.0 K), makes re-casting easy.
Although the cry is most typical of tin, a similar effect occurs in other metals, such as niobium,[2] indium,[3] zinc,[2] cadmium,[4] gallium,[2] and solid mercury.