tinning

Tinning is a metallurgical process that involves coating a metal, most commonly steel, with a layer of tin. This process creates tinplate, which combines the strength of steel with the noncorrosive and nontoxic properties of tin. The tin coating is typically applied through electroplating, a method that deposits tin onto the steel strip in a controlled manner.

Historically, tin has been used for millennia, initially as an alloy with copper to create bronze for tools and weapons, dating back to 3500 BCE. Tin was also used in pewter and as a coating for copper vessels in Roman times. The development of tinning iron sheet, known as tinplate, began in Europe in the 14th and 15th centuries. Initially used for household items, its major application shifted to packaging with the advent of food canning in 1812. Tin is a soft, ductile metal with a low melting point, making it ideal for coatings and alloys like solders and bearing metals.1234