What are the Main Uses of Sheet Metal?

There are many sheet metal materials used for stamping. The sheet metal materials widely used in the electronic and electrical industry include:

1. Common cold-rolled sheet SPCC
SPCC refers to the continuous ingots of steel ingots that are rolled into a steel sheet coil of a required thickness through a cold rolling machine Or sheet material. The SPCC surface does not have any protection.It is easily oxidized when exposed to air, especially in a humid environment.The oxidation speed is accelerated, and the dark red rust appears.The surface should be painted,electroplated or other protection when used.

2. The base material of galvanized steel sheet SECC
SECC is general cold-rolled steel coil. After the continuous electroplating zinc production line is made of degreasing, pickling, electroplating and various post-treatments, it becomes electrogalvanized products. SECC not only has the mechanical properties and approximate workability of general cold-rolled steel sheets, but also has excellent corrosion resistance and decorative appearance. It is highly competitive and replaceable in the market of electronic products, home appliances and furniture. For example, SECC is commonly used in computer cases.

3. Hot-dip galvanized steel sheet SGCC
SGCC refers to hot-rolled acidic or cold-rolled semi-finished products, which are cleaned and de-heated and immersed in a molten zinc bath at a temperature of 460 ° C to make the steel sheet coated with a zinc layer and then tempered Leveling and chemical treatment.SGCC material is harder than SECC material, has poor extensibility (avoid deep drawing design), thicker zinc layer, and poor weldability.

4. Stainless steel 301

The content of stainless steel SUS301 Cr (chromium) is lower than that of SUS304, and its corrosion resistance is poor. However, it can obtain good tensile force and hardness after cold working, and has good elasticity.

5. Stainless steel 304

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