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What are the commonly used automotive sheet metal materials in the market?
2020-08-18 15:50:57

There are a lot of sheet metal materials suitable for stamping. Sheet metal materials widely used in electronic and electrical industry include:

1. Ordinary cold rolled sheet SPCC

SPCC refers to the continuous rolling of steel ingot into the required thickness of steel coil or sheet. SPCC surface without any protection, exposed to the air is very easy to be oxidized, especially in humid environment, oxidation speed is accelerated, dark red rust appears, the surface should be painted, electroplated or other protection.

2. Galvanized steel SECC

The base material of SECC is cold-rolled steel coil. After degreasing, pickling, electroplating of automobile sheet metal parts and various post-treatment processes, SECC becomes electro galvanized product. SECC not only has the mechanical properties and approximate processability of general cold-rolled steel sheet, but also has superior corrosion resistance and decorative appearance. In the market of electronic products, home appliances and furniture, it is very competitive and replaceable. For example, SECC is widely used in computer case.


Automobile sheet metal parts


3. Hot dip galvanized steel sheet SGCC

Hot dip galvanized steel coil refers to that the semi-finished products after hot-rolled pickling or cold-rolled are washed and annealed, immersed in the solution zinc bath at 460 ° C, and the steel sheet is coated with zinc layer, and then quenched, tempered, leveled and chemically treated. SGCC material is harder than SECC material, with poor ductility (avoiding deep drawing design), thicker zinc layer and poor weldability.

4. Stainless steel SUS301

The content of Cr (CR) is lower than that of SUS304, and its corrosion resistance is poor. However, after cold working, it can obtain good tension and hardness, and has good elasticity. It is mostly used in spring spring and anti EMI.

5. Stainless steel SUS304

As one of the widely used stainless steels, Ni (Ni) is better than Cr (CR) in corrosion resistance and heat resistance. It has very good mechanical properties, no heat treatment hardening and no elasticity.


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