Stainless steel materials used in sheet metal processing
1. stainless steel SUS301
The content of Cr (chromium) is lower than that of SUS304, and the corrosion resistance is poor, but after cold processing, it can get good tensile and hardness, good elasticity, more elastic spring and anti EMI.
2. stainless steel SUS304
One of the most widely used stainless steel, because the steel containing Ni (nickel) is more corrosion resistant and heat-resistant than the steel containing Cr (chromium), has very good mechanical properties, no heat treatment hardening phenomenon, no elasticity.
3. common cold rolled plate SPCC
SPCC refers to the continuous rolling of steel ingots through the cold rolling mill to produce steel sheets or sheets with required thickness. There is no protection on the surface of the SPCC. The exposure to the air is very easy to be oxidized, especially in the wet environment, the speed of oxidation is accelerated, the dark red rust appears, and the surface should be painted, electroplated, or other protective surfaces.
4 hot dipped galvanized steel plate SGCC
Hot dip galvanized steel rolls refer to the semi-finished products of hot rolled or cold rolled, after cleaning and annealing, immersed in the melting zinc trough of about 460 C, and making the steel sheet plated with zinc layer, and then made by quenching and leveling and chemical treatment. The SGCC material is harder than the SECC material and has poor ductility (avoiding deep drawing design). The zinc layer is thick and the electric welder is poor.
5. galvanized steel plate SECC
The base of SECC is a general cold rolled steel coil, which is a galvanizing product after the continuous galvanizing line is degreased, acid washed, electroplating and various post-processing processes. SECC sheet metal processing not only has the mechanical properties and approximate machinability of 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, household appliances and furniture. For example, the common use of computer boxes is SECC.
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