Electrolytic tinplate is low-carbon mild steel sheet or coil coated on both surfaces with tin that is applied in continuous electrolytic operation. The surface of electrolytic tinplate is normally subjected to a passivation treatment and to oiling.

Chromium plated plate is also called tin-free steel plate, English abbreviation for TFS. It is a new type of can material developed for the situation of less metal tin resources and high cost.

Tinplate is available in food grade and non-food grade. The main grades are MR and SPCC. The chemical composition requirements of MR materials are stricter than those of SPCC materials and have fewer impurities.

According to the difference of the tin plating thickness on the front and back of the thin steel plate, tinplate can be divided into two types: equal thickness tinplate and difference thickness tinplate. Among them, differential thickness tinplate refers to tinplate whose one surface carries a heavier coating than the other.

According to the difference of the tin plating thickness on the front and back of the thin steel plate, tinplate can be divided into two types: equal thickness tinplate and differential thickness tinplate. Among them, equal thickness tinplate refers to the same tin plating on the front and back of tinplate.

Double reduced cold-rolled tinplate is given a partial cold reduction to reach an intermediate gauge, then annealed and given another cold reduction to the final gauge prior to coating with tin. The resulting product is stiffer, harder, and stronger than single reduced cold-rolled tinplate.

Single reduced cold-rolled tinplate refers to those products where the steel substrate has been reduced to the desired thickness in a cold-reduction mill and subsequently annealed and temper rolled.