| Product name | Corrugated roofing steel sheet |
|---|---|
| Size | 0.12mm-1.2mm |
| Width | 600mm-1500mm |
| Zinc coating | 40-275g/m2 |
| Length | Length:Single random length/Double random length 5m-14m,5.8m,6m,10m-12m,12m or as customer’s actual reques |
| Technique | Gi lron Roofing Sheet |
| Surface treatment | 1. Galvanized 2. PVC,Black and color painting 3. Transparent oil,anti-rust oil 4. According to clients requirement |
| Delivery time | 7 to 15 days after receiving the retainer |
Part 1 product description
Galvanized corrugated steel sheet is also called galvanized sheet or white iron sheet: it is a cold-rolled continuous hot-dip galvanized thin steel sheet and steel strip with a thickness of 0.25-2.5mm. The surface of the steel plate is beautiful, with massive or leaf-shaped zinc crystal patterns, the galvanized layer is firm, and has excellent atmospheric corrosion resistance. At the same time, the steel plate also has good welding performance and cold forming performanc e. Compared with electro-galvanized thin steel sheets, hot-dip galvanized thin steel sheets have a thicker galvanized layer and are mainly used for components that require stronger corrosion resistance.
The raw materials used are color steel sheets, and the substrates of color coated steel sheets include electro-galvanized steel sheets, cold-rolled steel sheets, hot-dip galvanized steel sheets and galvanized steel sheets. The substrates are coated with a layer after degreasing and phosphating processes. The organic paint is baked and finally turned into a bright and colorful color steel plate. The color steel plate undergoes processes such as rolling, cold bending, and pressing, and finally makes various shapes like tiles.
Part 2 Product Specification
①Sheet Thickness: 0.2-1.0mm,
②Width: 50-250mm.
③Application code: L (for buildings), Q (for walls), W (for houses), X (Universal panel).
④Commonly used materials: Q235A, Q235B, etc.Color-coated steel corrugated board manufacturing standard is GB/T 12755.
⑤Color steel corrugated sheet Common Specification:
YW35-1000-205-0.4, Q235B, GB/T 12755
YX15-1000-125-0.8, Q235B, GB/T 12755
YW30-970-240-0.4, Q235B, GB/T12755
YW51-600-250-0.8, Q235A, GB/T 12755
YX15-850-65-0.5, Q235B, GB/T 12755
YW51-760-380-0.8, Q235B, GB/T 12755
Part 3 Classification
According to the production and processing method, it can be divided into the following categories:
1.Galvanized corrugated board.
The steel sheet is dipped in a bath of molten zinc, thereby adhering the steel sheet with the zinc layer to the surface. At present, it mainly adopts the continuous galvanizing process, that is, the coiled steel plate is continuously immersed in a galvanizing tank and is made into a galvanized steel plate together with molten zinc.
2. Alloy galvanized corrugated board.
This kind of steel plate is also made by hot dipping, but immediately after being discharged from the tank, it is heated to about 500°C to form an alloy film of zinc and iron. The galvanized sheet has good paint adhesion and weldability.
3.Galvanized corrugated board.
Galvanized steel sheets produced by electroplating have good machinability. However, the coating is thinner and its corrosion resistance is not as good as that of hot-dip galvanized panels.
4.Single-sided and double-sided galvanized corrugated sheets.
Single-sided galvanized steel sheet is a product that is galvanized on only one side. In terms of welding, painting, antirust treatment, processing, etc., it has better adaptability than double-sided galvanized panels. In order to overcome the disadvantage of not being galvanized on one side, another galvanized sheet is coated with a thin layer of zinc on the other side, that is, double-sided differential galvanized sheet.
5.Alloy and composite galvanized corrugated board.
It is a steel plate made of zinc and other metals, such as lead and zinc alloys, or even composite coatings. This steel plate not only has excellent antirust performance, but also has good coating performance.
Part 4 Common Specifications
1.840 Type Zinc Steel Corrugated Sheet
Type 840 zinc-steel corrugated board is a common specification. Its effective thickness is 840mm, wave height is 25mm, wave distance is 210mm, and plate thickness is 0.3-0.8mm. This specification of zinc-steel corrugated board is suitable for industrial plants, Roofs and walls of buildings such as warehouses and garages.
2. 820 Zinc-Steel Corrugated Sheet
Its effective thickness is 820mm, wave height is 25mm, wave distance is 205mm, and plate thickness is 0.3-0.8mm. This specification of zinc-steel corrugated board is suitable for civil buildings, Roofs and walls of buildings such as commercial buildings and industrial plants.
3.760Type Zinc-Steel Corrugated Sheet
The effective width is 760mm, the wave height is 18mm, the wave distance is 76mm, and the board thickness is 0.3-0.8mm. This specification of zinc-steel corrugated board is suitable for civil buildings, commercial buildings, industrial plants and other roof and wall of buildings.
4. 900Type Galvanized Corrugated Sheet
The effective width of sheet is 900mm, the wave height is 25mm, the wave distance is 225mm, and the board thickness is 0.3-0.8mm. This specification of zinc-steel corrugated board is suitable for roofs and walls of long-span buildings, such as gymnasium, exhibition hall.
5.1000Type Zinc-Steel Corrugated Sheet
The effective width is 1000mm, the wave height is 25mm, the wave distance is 200mm, and the plate thickness is 0.3-0.8mm. This specification of zinc-steel corrugated board is suitable for the roof and wall of long-span buildings. Such as gymnasiums, exhibition halls.
