Galvanized steel plate is divided into ordinary electrolytic plate and fingerprint resistant electrolytic plate. Fingerprint resistant plate is on the basis of ordinary electrolytic plate added a fingerprint resistant treatment, can resist sweat, generally used in the parts without any treatment, the brand is SECC-N. Common electrolytic plate and phosphating plate and passivation plate, phosphating is more commonly used, the brand is SECC-P, commonly known as P material. The passivation plate is oiled and not oiled.
For example:
Hot dip zinc steel plate (SGCC) has an advantage over electrogalvanized steel plate (SECC), SECC bending and section is very easy to rust, SGCC rust resistance under the same conditions is much better. High-quality cases are usually made of SECC or SGCC galvanized steel plate. The case steel plate made of this material is shiny in color and has a metallic luster. The advantage of this steel plate is that it has good corrosion resistance.
Electrogalvanized steel sheet (SECC) : uniform gray, mainly imported, fingerprint resistance, has very superior corrosion resistance, and maintain the processing of cold rolled sheet. Application: Home appliance, computer case shell and some door panels and panels.
Hot DIP ZINC STEEL PLATE (SGCC) : DIP PLATED, BRIGHT white, SMALL ZINC flower (HARDER TO see), LARGE ZINC flower can be clearly seen hexagONAL flower block. There are only two factories of Taiwan Province China Steel and Shengyu Steel Corporation capable of production in China. There is no Steel factory in mainland China capable of producing high-quality materials, which mainly relies on imports.
Main Features:
Corrosion resistance, lacquering, formability and spot weldability.
It is widely used, mainly for the parts of small household appliances that need good appearance. However, compared with SECC, it is more expensive, so many manufacturers use SECC to save costs.
According to zinc division: the size of zinc flower and zinc layer thickness can show the quality of galvanized, the smaller the thicker the better. Manufacturers can also add resistant fingerprint processing. There is also the coating can be distinguished by its coating, such as Z12 indicates the sum of double coating 120g/mm.
Such as:
Aluminized zinc steel plate (SGLD) : It is a multiphase alloy material containing rich aluminum and zinc. Because of the characteristics of aluminum and zinc, it has better performance than hot dip zinc steel (SGCC). Main characteristics: corrosion resistance, its ability is much higher than SGCC; Heat resistance; Heat conduction and heat reflection; Formability; Weldability. Purpose: IN some areas where good reflection is required, such as the reflection plate inside the oven, the reflection plate of the electric cooker. Hot DIP ZINC SHEET (SGCC) IS FOR GENERAL USE, alumINIZED ZINC SHEET (SGLD) IS FOR DEEP stamping, SGCE IS FOR SUPER DEEP stamping.