Tinplate is alloy of Sn and Fe, it has a level of Sn so called tinplate. Getting it by put the ferrous plate into Sn liquid. For Sn is a mental which less actively than Fe, it can’t be oxidized and reacted with water have a storage ability of resistanting to corrosion.With a level of Sn could give the plate well protect, while the level be damaged the plate will have the electrolytic rusty. For Fn is more actively than Sn, Fn will lose as the prime battery’s cathode while the Sn will add the rusty speed.        

his is the difference between tinplate and galvanized iron; tinplate could protect the iron while the cladding is in good condition. For Sn is the cladding, so called tinplate.
Please note: Galvanized iron, Zn, Fe, when the cladding is Zn called zinced iron.

Tinplate is a commonly name of electrolytic tinplate which short name is SPTE that is means the cold middle carton steel plate or steel strip which two sides are all coating Sn. Sn has the ability could prevent rusty, it combines the steel’s strong and easy molding and Sn’s anti-corrosion, welding and beauty look into one material which have anti-corrosion, no poison, high association and good ductility.