At present, color coated galvanized sheet is mainly used in the construction industry, and it is also involved in the automobile and plate industry. Due to its excellent nature, good corrosion resistance, it is widely used. When selecting, we should also
make clear the model selection, and the performance of different models of products is also different. Here is to introduce the classification code of base plate.
1. Structure classification code: z-normal zinc flake: it is obtained by crystallization according to normal cooling rate, which can be used for general purpose: x-small-sized zinc flake: the size of zinc flake is smaller than that of normal zinc flower
after special control of cooling rate, which is suitable for painting and other occasions where the normal zinc flower can not meet the requirements; GZ finishing zinc flower: small zinc flower is processed by finishing, which is suitable for deep drawing
and ultra deep drawing processing and surface roughness requirements Low occasion.
2. Processing performance code: Pt general purpose, JY mechanical bite, SC deep drawing, CS ultra deep drawing, JY structure. When choosing, be sure to pay attention
to the use.
3. Zinc coating weight code: Z100, z200, z275; zinc coating weight refers to the total zinc content on both sides of the steel plate, expressed in grams of zinc per square meter of color coated galvanized sheet (g / m2), for example,
Z100 means its zinc content is not less than 100g / m2.
Marking example: zinc coating weight 275g / m2, processability JY, surface structure Z, surface treatment y, dimensional accuracy B, steel plate with length × width × height of 0.70mm × 700mm
× 2000mm is marked as: steel plate: 275-jy-z-y-b-0.70 × 700 × 2000-gb2518-81.