The decorative and protective effect of sheet metal processing process surface treatment on the product surface is recognized by many industries. The materials commonly used in sheet metal processing are cold rolled sheet (SPCC), hot rolled sheet (SHCC), galvanized sheet (SECC, SGCC), copper (CU) brass, red copper, beryllium copper, Aluminum plate (6061, 5052, 1010, 1060, 6063, duralumin, etc.), aluminum profile, stainless steel (mirror, wire drawing surface, fog surface, anti-fingerprint, mess), according to the different role of the product, the selection of different materials, generally need to consider from the use of the product and the cost.

1, sheet metal processing cold rolled plate SPCC, mainly with electroplating and paint parts, low cost, easy to form, material thickness ≤3.0mm.

2, hot rolled SHCC, material T≥4.0mm, also with electroplating, paint parts, low cost, but difficult to form, mainly with flat parts.

3. Galvanized sheet SECC, SGCC. SECC electrolytic plate is divided into N material and P material. N material is mainly not treated with high cost, and P material is used for spraying parts.

4. Copper; Mainly used conductive materials, its surface treatment is nickel plating, chrome plating, or no treatment, high cost.

5, aluminum plate; General use of surface chromate (J11-A), oxidation (conductive oxidation, chemical oxidation), high cost, silver plating, nickel plating.

6, aluminum profile; Materials with complex section structure are widely used in various box. The surface treatment is the same as aluminum plate.

7, stainless steel; Mainly used without any surface treatment, high cost, corrosion resistance is relatively good.