Introduction to cold rolled steel plate material! (Down)
Introduction to hot-dip galvanized steel plate (silver)
It is made of hot-rolled steel strip or cold-rolled steel strip as the base steel plate and is produced through continuous hot-dip galvanizing process. It can prevent the surface corrosion of cold-rolled steel plate and steel chain.
Galvanized sheets are supplied as rectangular frame tablets through cross-section; hot-dip galvanized coils are supplied as rolls after being rolled.
Due to the different base steel sheets used, hot-dip galvanized steel sheets can be divided into hot-rolled galvanized steel coils and cold-rolled galvanized steel coils. They are mainly used in industries such as construction, household appliances, automobiles, utensils, transportation and industry. . Especially in steel structure engineering, automobile industry, steel plate window manufacturing and other manufacturing industries.
It has strong corrosion resistance, good process performance, is conducive to production and processing, and has high cost performance.
2. Classification and marking of hot-dip galvanized steel sheets
According to the processing characteristics, it is divided into: general purpose (PT), mechanical tooth engagement (JY), deep drawing (SC), super excavation timeliness (CS), and structure (JG);
According to the net weight of the zinc layer, it is divided into: pure zinc surface layer is divided into: 100/100 (the net weight of the zinc layer is less than 100 grams/m2),
Zinc non-ferrous metal surface layer is divided into: 90/90
(The net weight of the zinc non-ferrous metal layer is less than 90g/m2), 100/100, 120/120, 180/180;
According to the surface structure, it is divided into: normal zinc flower Z, small zinc flower X, smooth zinc flower GZ, zinc non-ferrous metal XT;
According to process performance, it is divided into: Group I (I), Group II (II);
According to the specification precision, it is divided into: advanced precision A, general precision B;
According to the metal surface treatment, it is divided into: chromic acid passivation treatment L, oiling Y, chromic acid passivation treatment plus oiling LY.
GNEE hot-dip galvanized steel plate:
GNEE Phase II Hot Dip Galvanizing
GNEE Phase II hot-dip galvanizing is produced by continuous hot-dip galvanizing of cold-rolled or hot-rolled steel on 2030 generator sets, and is used for general purposes or structures.
The supply scope of the second phase hot-dip galvanizing: thickness (0.3-0.3) total width (800-1830) length (plate 1000-6000, coil inner diameter 610) mm.
The second-stage hot-dip galvanizing is divided according to the surface structure: Z indicates normal spangle, N indicates zero spangle, X indicates small spangle, and G indicates smooth spangle.
The second phase of hot-dip galvanizing is divided into metal surface treatments: L indicates chromic acid passivation treatment, Y indicates oiling, LY indicates chromic acid passivation treatment + oiling
Mainly to reduce or prevent white rust during transportation or storage.
.png)
.png)
