There are many sheet metal materials suitable for stamping. Sheet metal materials widely used in the electronics industry include:

⒈ Ordinary cold-rolled sheet SPCC SPCC refers to the continuous rolling of steel ingots into cold-rolled mills to form steel coils or sheets of required thickness. There is no protection on the surface of SPCC. It is very easy to be oxidized when exposed to the air, especially in a humid environment. The oxidation speed is accelerated, and dark red rust appears. The surface should be painted, electroplated or other protection during use.

底 Galvanized steel plate SECC The base material of SECC is ordinary cold rolled steel coils. After continuous degreasing, pickling, electroplating and various post-treatment processes, it becomes electrogalvanized products. SECC not only has the mechanical properties and approximate processability of general cold rolled steel sheets, but also has superior corrosion resistance and decorative appearance. It has great competitiveness and substitution in the market of electronic products, home appliances and furniture. For example, the computer case is commonly used in SECC.

⒊ Hot-dip galvanized steel sheet SGCC Hot-dip galvanized steel coil refers to the semi-finished product after hot-rolled pickled or cold-rolled, washed, annealed, and immersed in a molten zinc bath at a temperature of about 460 ° C to plate the steel sheet. The zinc layer is formed by tempering and leveling and chemical treatment. SGCC material is harder than SECC material, poor ductility (avoid deep drawing design), thicker zinc layer, and poor weldability.

⒋ The content of stainless steel SUS301 铬 Cr (chromium) is lower than SUS304, and the corrosion resistance is poor, but it can obtain good tensile strength and hardness after cold working, and its elasticity is better. It is mostly used for springs and anti-EMI.

⒌ Stainless steel SUS304 One of the most widely used stainless steels. Because it contains Ni (nickel), it has more corrosion resistance and heat resistance than steel containing Cr (chromium). It has very good mechanical properties, no heat treatment and hardening, and no elasticity. .