144 ºF (62 ºC) Low Melting Point 51% Indium Field’s Metal Alloys

Named after its inventor, Simon Quellen Field, Field’s metal is Eutectic at 144 ºF, 62 ºC. Field’s metal is expensive due to the price of indium, which makes up over half its mass. However, as it contains neither lead nor cadmium, it is a less toxic alternative to Wood’s metal. It is used for die casting and rapid prototyping.