There are many sheet metal materials suitable for stamping, which are widely used in the electronic and electrical industry, including: 1. Ordinary cold-rolled sheet SPCC SPCC refers to the continuous rolling of steel ingots into steel coils or sheets of the required thickness by cold rolling mills. The surface of SPCC has no protection, and it is very easy to be oxidized when exposed to the air, especially when the oxidation speed is accelerated in a humid environment, showing dark red rust. When using, the surface should be painted, plated or otherwise protected. 2. The base material of galvanized steel plate SECC SECC is ordinary cold rolled steel coil. After degreasing, pickling, electroplating and various post-processing processes in the continuous electrogalvanizing production line, it becomes an electrogalvanizing product. SECC not only has the mechanical properties and similar processability of ordinary cold-rolled steel sheets, but also has superior corrosion resistance and decorative appearance. In the market of electronic products, home appliances and furniture, it has great competitiveness and substitutability. For example, SECC is widely used in computer cases. 3. Hot dip galvanized steel sheet SGCC hot dip galvanized steel coil refers to the steel sheet coated with zinc, quenched, tempered, leveled and chemically treated by washing and annealing the semi waste products after hot rolling, pickling or cold rolling, and immersing them in a solution zinc bath with a temperature of about 460C. SGCC data is harder than SECC data, with poor ductility (to prevent deep drawing design), thicker zinc layer, and poor weldability. 4. The content of stainless steel SUS301 Cr (chromium) is lower than SUS304, and its corrosion resistance is poor. However, after cold processing, it can obtain good tension and hardness, and has good elasticity. It is mainly used for spring and EMI prevention. 5. Stainless steel SUS304 is one of the most widely used stainless steels. Because it contains Ni (nickel), it is more resistant to corrosion and heat than the steel containing Cr (chromium). It has very good mechanical properties, no heat treatment hardening and no elasticity.
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