What is SECC electrogalvanized steel used for?

SECC (Steel, Electrogalvanized, Cold-rolled, Commercial quality) is a stamping material, which is a zinc layer plated on the surface of cold-rolled plate. It is fingerprint-resistant, has excellent corrosion resistance, and maintains the processability of cold-rolled plate. It is rust-proof and corrosion-resistant, and the price is relatively high. The coating thickness is usually (single-sided): 1.4μ, 4.2μ, 7.0μ, and the general plate thickness is 0.4~3.2mm.

Substrate: Cold rolled steel sheet (SPCC), the surface is coated with a zinc layer by electrogalvanizing process, the zinc layer is usually thin (about 3-20μm).
Surface treatment: Electrogalvanized, compared with hot dip galvanizing (such as SGCC), the coating is more uniform and delicate, suitable for precision stamping.
Corrosion resistance: The zinc layer provides basic rust resistance, but is weaker than hot dip galvanizing (such as SGCC). It can be further enhanced by chromate passivation (chromium-free passivation) or oiling.
Processability: Because the substrate is cold rolled steel, it has excellent ductility and stamping performance, suitable for bending, stamping, welding and other processing

What are the differences between SECC, SGCC, SPCC and SECE?

What is SECC electrogalvanized steel used for?

Home appliance manufacturing
Air conditioning panel, washing machine side panel
Refrigerator internal structural parts
Microwave oven shell, oven control panel
Advantages of SECC
✅ Strong coating adhesion: The surface is clean and can be directly sprayed or coated without additional degreasing (hot-dip galvanizing requires phosphating).
✅ Fingerprint resistance: Chromium-free passivation (such as blue-white passivation) can reduce fingerprint residue and improve aesthetics.
✅ Good formability: Suitable for complex bending and stretching (such as air conditioner air guide plate forming).

Other applications