











18 Gauge Galvalume Sheet AZ55
18 Gauge Galvalume Sheet AZ55 (Galvanized Corrugated Sheet) is a galvanized steel sheet that is formed into a corrugated sheet by cold bending. This product has a variety of design types and specifications, such as wave type, trapezoidal type, and glazed type. It is also called a roofing sheet because it is widely used in roofs.
18 gauge Galvanized Corrugated Sheet Color Coated Steel Roofing Tile. Corrugated board is also known as a pressure plate, which is made of colored coated steel plate, galvanized plate, and other metal plates by roller pressing and cold bending into a variety of wave-type pressure plates. It is suitable for industrial and civil buildings, warehouses, special buildings, roofing, wall, and inner and outer wall decoration of large-span steel structure houses. It possesses characteristics such as lightweight, high strength, rich color and luster, convenient construction, earthquake resistance, fire prevention, rainproofness, long life, and low maintenance, among others, and has been widely promoted and applied.
Product Specification
| Normal Roof shape | Wave shape, T shape |
| Color | RAL Color |
| Grade | SGCC SGCH G550 |
| Packages | Export standard package for PPGI |
| Coil Weight | 3-8 Tons |
| Skin Pass | Yes |
| Zinc Coating | Z30-275g/m2 |
| Coil ID | 508/610mm |
Chemistry of 18-Gauge Galvalume Sheet AZ55
| Element | S | Mn | P | Ca | Ti | Sn | N | B | C | Al | Mo | Ni | Cr | Si | V | Nb | Cu |
| Percentage | 0.0097 | 0.29 | 0.013 | 0.0006 | 0.00067 | 0.0027 | 0.0058 | 0.0001 | 0.057 | 0.044 | 0.0043 | 0.024 | 0.057 | 0.0117 | 0.00067 | 0.001 | 0.061 |
Features of PPGI Roofing Sheet:
- The acid and alkali resistant, good acid and alkali corrosion resistance.Proved by the experiment, respectively, in the pH = 1 in sulfuric acid solution and 10% NaOH solution for 72 hours, no corrosion even in a high pH environment can be at ease.
- Strong waterproof: good water resistance, the product material itself is poorly soluble in water, bibulous rate is 9% or less, far higher than the national standard (12%) or less.
- Super bending force. This product has a transverse bending force of 4229 N, the longitudinal bending force of 486 N, far higher than the national standard requirement (horizontal or 2400 N, vertical 300 N or higher). This product, from 1.5 meters, can withstand a pressure of 100 kg.
- Frost resistance to cold: magnesium oxide content in magnesium board is as high as 50%, the coefficient of thermal conductivity is only 0.070, and in – 40 ºC cold conditions without any deformation.
- Fire resistance to high temperature: this product insulation can reach 10 ~ 12 ºC (indoor and outdoor temperature difference), the reason is adopted by magnesium oxide, high calcium powder, inorganic materials such as magnesium oxide white amorphous powder, non-toxic, tasteless, odourless, relative density of 3.85 (25 ºC), melting point 2852 ºC, boiling point 3600 ºC, belong to national a-class non-combustible material, such as commonly used in the manufacture of refractory brick and refractory tubes, crucible, furnaces, non-ferrous metal smelting furnace, cement kiln, and so on, belong to the super grade refractory (national standard above 2000 ºC).
- Good anti-aging effect. Slowing down the speed of material aging and increasing weather resistance increases the service life of the material, and the appearance is beautiful and high-grade.
Application
Agricultural Modernization
Construction Engineering
Environmental Protection Engineering
Food Processing Industry
Intelligent Home Appliances
Medical and Health Field
New Energy Infrastructure









