DX52D 53D DDQ Galvanized Steel SPCC Z90 Home Appliance Board Zero Spangle Skin Pass Cr3+ Chromated Free Unoiled GI sheet

Hot-dip galvanised steel coil (GI) is made by passing a fully hardened steel sheet, which has undergone a pickling and rolling process, through a zinc pot, thereby coating the surface with a zinc film. Due to the properties of zinc, it offers excellent corrosion resistance, paintability and workability. Typically, the process and specifications for hot-dip galvanised steel sheet and galvanised steel coil are essentially the same.

Characteristics and Benefits of Galvanized Steel

Galvanized steel is mild steel coated with a layer of zinc. The zinc coating offers cathodic protection to the underlying steel, meaning that if the surface is damaged, the zinc will corrode before the steel does, thereby protecting it from corrosion. Galvanized steel is extensively used in the building sector, automotive industry, agriculture, and other areas where steel needs protection from corrosion.

Hot-Dip Galvanizing Process (HDG)

Hot-Dip Galvanizing (HDG) is a process where zinc bonds to steel at the molecular level to produce a four-layer corrosion-resistant finish. The first three layers consist of zinc-iron alloy layers that are actually harder than the base steel. The fourth, or top layer, is pure zinc. This multi-layered structure ensures long-lasting durability and protection against corrosion.

1) Standard: JIS G3302 1998, ASTM A653M/A924M 2004, all according to the customer's request
2) Grade: SGCC, SGCH,DX51D, Q195,Q235 all according to the customer's request

3) Capacity: about 12000 tons per month

4) Thickness: from 0.13mm to 2mm, all available
5) Width: from 600mm to 1250mm, regular size:750-762mm,900-914mm,1000mm,1200mm,1219-1250mm all available
6) Coil ID: 508mm
7) Coil weight: from 2-10MT, according to the customer's request

8) Zinc coating weight: 40g/m2-275g/m2

9) Spangle: regular spangle,big spangle, small spangle and zero spangle
10) Surface treatment: Chemical passivating, oils, passivating oils,skin passed
11) Edge: mill edge, cut edge
12) Min trial order 25 ton each thickness

Main characteristics of galvanised steel

• Corrosion protection: 13 years for heavy industrial areas, 50 years for marine, 104 years for suburban areas and 30 years for urban areas.

• Inexpensive: Hot dip galvanising costs less than other coatings.

• Reliable: The zinc coating is metallurgically bonded to the steel and forms part of the steel surface, making the coating more durable.

• Toughness: the galvanised steel layer forms a special metallurgical structure that can withstand mechanical damage during transport and use.

• Comprehensive protection: every part of the coating can be galvanised and is fully protected even in depressions, sharp corners and hidden areas.

• Saving time and effort: the galvanising process is faster than other coating methods

Application:

Export Package

Shandong Decho Building Materials Technology Co., Ltd (hereafter called “DBM” ) is a professional manufacturer and exporting company of coated steel coils and sheets, with over 13 years of experience in steel industry and 11 years of steel mill work experience, with extensive product knowledge and experience in production process, especially for the supply of coated steel coils with a stable and reliable supply chain of manufacturers and logistics.

DBM is always in pursuit of and committed to providing high quality products and services. Our company has professional quality inspection team members, for each batch of orders can be fully on-site testing and provide test reports, can also accept any third-party testing company on-site testing, we can do is to ensure that each order goods delivered to a high standard, to achieve customer satisfaction, to achieve win-win cooperation.

DBM can meet the need to use colour steel plate as raw material for building. Decho Building Materials colour steel plate is mainly processed into, for example, colour steel corrugated board or colour steel composite sandwich board after our colour steel plate is widely used in the construction of airports, freezers, steel plants, warehouses, and other industrial buildings and commercial buildings, such as the roof of the colour steel tiles, colour steel plate sandwich walls and doors.

DBM only focus on high standard coated coils with warranty service, We are your strict gatekeeper and faithful partner in China import , We always been committed to becoming your long-term reliable supplier in China.