3. Hot-dip galvanized steel sheet SGCC

Hot-dip galvanized steel coil refers to the semi-finished product after hot-rolled pickling or cold-rolling, which is washed, annealed, and immersed in a molten zinc bath at a temperature of about 460 ° C. Levelling and chemical treatment. SGCC material is harder than SECC material, poor ductility (avoid deep drawing design), thicker zinc layer, and poor weldability.

4. Stainless steel SUS301

The content of Cr (chromium) is lower than SUS304, and the corrosion resistance is poor, but it can obtain good tensile strength and hardness after cold working, and has good elasticity. It is mostly used for springs and anti-EMI.

5. Stainless steel SUS304

One of the most widely used stainless steels, because it contains Ni (nickel), it has more corrosion resistance and heat resistance than steel containing Cr (chromium). It has very good mechanical properties, no heat treatment and hardening, and no elasticity.