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Zero spangle galvanized steel sheet is the short name of hot dipped galvanized steel corrugated sheet.. African people often call it zero spangle GI sheet.
Zero spangle galvanized steel sheet features
1. Galvanization can effectively prevent corrosion of steel and prolong service life.
2. Zero spangle or no spangle on the surface.
Zero spangle galvanized steel sheet (0.12- 0.8 mm thickness) is also called galvanized iron, commonly known as GI sheet. Zero spangle galvanized steel sheet is widely used in construction, vehicles, household appliances, daily necessities and other industries.
Standard of Inspection
Standard of quality Inspection for zero spangle galvanized steel sheet include specifications, size, surface, galvanizing, chemical composition, shape, machine function and packaging.
It can be divided into two types: The simple package also called bare packaging and standard seaworthy package.
Simple package is only including the steel belt and moisture proof paper. Customers consider it as unsafe package.
Standard seaworthy package is including moisture proof paper, iron wrapper, steel belt and steel pallet. Workers ties the GI sheet tightly so as to prevent inner galvanized steel from rubbing against each other. Customers consider it as safe package. Nowadays most of zero spangle galvanized steel sheet packaging are requested in standard seaworthy package.
2. Standard Size
The size of zero spangle galvanized steel sheet is thickness (0.12- 2.0 mm) and width (600-1250 mm). Length can be 1800 mm galvanized steel sheet, 2000 galvanized steel sheet, 2440 mm galvanized steel sheet ,3000 mm galvanized steel sheet , 3660 mm galvanized steel sheet , 4200 mm galvanized steel sheet and 6000 mm galvanized steel sheet.)
2. Surface Treatment
The general situation of hot dipped galvanized steel sheet because of difference in the process of galvanization, such as general spangle, regular flower, small flower, zinc free flower and so on.
Zinc coating can be 20-275g/m2. It is coated in two sides of steel to Prevent oxidation. The unit of galvanized steel sheet is g/m2.
6. Shape of GI Sheet
There are many kinds of shape for zero spangle galvanized steel sheet.
Corrugated galvanized steel sheet or wave galvanized steel sheet, trapezoidal galvanized steel sheet, encaustic tile galvanized steel sheet, and plain galvanized steel sheet.
The domestic hot-dipped zero spangle galvanized steel sheet are mainly used in building materials, light industry, agriculture, transportation and other industries. Due to the limitation of the existing zero spangle galvanized steel sheet equipment condition, process technology and the properties of the original zero spangle galvanized steel sheet, the galvanized sheet which is used for automobile manufacturing industry is very rare.
The advantages of zero spangle galvanized steel sheet are excellent corrosion resistance, painting, decoration and good formability. In recent years, the amount of zero spangle galvanized steel sheet in construction has been risen, and has become the main body of building sheet in Asia, The Middle East and Africa. All the countries in the world are studying how to expand the varieties and specifications of the zero spangle galvanized steel sheet, and improve the coating technology and quality of the galvanized steel sheet, namely corrosion resistance, anti powder exfoliation, coating and weldability. The formability and quality of the zero spangle galvanized steel sheet mainly depends on the performance of the substrate, the galvanization process , the properties and forming process conditions. It can achieve a good application effect by combining the comprehensive advanced technology.
Zero Spangle Galvanized Steel Sheet in Nigeria
Many African people like to use zero spangle galvanized steel sheet to build their houses, especially the Nigeria people. The full name of Nigeria is Federal Republic of Nigeria and it is located in the southeast of West Africa. The neighbor countries are Cameroon, Niger and Benin.
The political situation in Nigeria has basically remained stable. Since the implementation of the electoral politics, social development has been generally stable. So Nigeria government has built good international relationship with China since last century.
Nigeria 's climate is tropical steppe. It is divided into dry season and rainy season in the whole year. The annual average temperature is 26~27 degrees centigrade, the annual average temperature in coastal areas is 32.2 C, and the most North reaches 40.6 C. It caused the large usage of GI sheet in the domestic houses. There are many traditional festival such as Osun, Leboku, The Great Ofala, Sharo , Uhola and Igue.
50% of Leah's residents are Muslim, 40% believe in Christianity, and 10% believe in other religions. The main sea port in Nigeria are ONNE port and NGLOS port and the shipping time is usually 45 days. So when Nigeria customers book zero spangle galvanized steel sheet, they usually consider the shipping time to calculate.
The size of zero spangle galvanized steel sheet they require is 0.14 X 665 X 1800 mm for building house. They also use the plywood and wire common nails and roofing nails to build.
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Galvanized Steel manufacturers