4. 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.

5.Stainless steel SUS301

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