Hot-rolled or cold-rolled steel strips are used as the base plate and processed through continuous hot-dip galvanizing process to prevent corrosion and rust. These products are supplied in the form of rectangular flat sheets and are hot-dip galvanized sheets; they are rolled in roll form. The delivery is for hot-dip galvanized coils. Due to differences in substrates, hot-dip galvanized steel sheets are divided into hot-rolled galvanized sheet coils and cold-rolled hot-dip galvanized sheet coils. They are widely used in construction, home appliances, automobiles, containers, transportation, and household industries. Especially in steel structure construction, automobile manufacturing, steel window manufacturing and other industries, hot-dip galvanized steel sheets can fully exert their value.
Characteristics of hot-dip galvanized steel sheets
Strong corrosion resistance, good surface quality, conducive to deep processing, economical and practical, etc.
Classification and symbols of hot-dip galvanized steel sheets
According to the processing performance, it is divided into: general purpose (PT), mechanical engagement (JY), deep drawing (SC), super deep drawing aging (CS), structure (JG); according to the weight of the zinc layer: the surface of pure zinc is divided into: 100/100 (the weight of the zinc layer is less than 100g/m2), 120/120, 200/200, 275/275, 350/350, 450/450, 600/600; the zinc-iron alloy surface is divided into: 90/90 (zinc-iron alloy layer Weight less than 90g/m2), 100/100, 120/120, 180/180; divided according to surface structure: normal zinc flower Z, small zinc flower X, smooth zinc flower GZ, zinc-iron alloy XT; divided according to surface quality : Group I (I), Group II (II); according to dimensional accuracy, it is divided into: advanced precision A, ordinary precision B; according to surface treatment, it is divided into: chromic acid passivation L, oil coating Y, chromic acid passivation plus oil coating LY.
