Tinplate is a composite material, scientifically known as tin-plated thin steel sheet. Its core is a low-carbon thin steel sheet, and its surface is covered with an extremely thin layer of metallic tin (Sn) through hot-dip galvanizing or electroplating processes. This material combines the strength of steel with the corrosion resistance, weldability and aesthetic appeal of tin, and is widely used in packaging, electronics, machinery and other Core composition and Characteristics: 1. Base material: Low-carbon steel (base plate) Composition: Mainly iron (Fe), with extremely low carbon content (usually ≤0.15%), thus having good toughness and being easy to process and form. Function: To provide mechanical strength (such as hardness and impact resistance) and support the overall structure. 2. Coating: Metallic tin (Sn) Thickness: The coating is 1.0-11.2g/m²