Galvanized steel is one of the most exclusive types of metal. Metal must have not only proper appearance but also excellent mechanical properties and technological characteristics, while the galvanized sheet in some cases has only decorative function.
Galvanized sheet, unlike other construction armature, is often used in the construction of the outer coverings for roofs and walls. Therefore, during its production the focus is placed not only on a mechanical specifications of a product, but also its appearance. One of the most popular types of sheet metal for such purposes is galvanized sheet. It has been successfully used in industrial construction due to its two main features - a corrosion resistance and beautiful appearance.
The material for galvanized steel is carbon cold rolled steel. Another important quality of this type of sheet metal is resistance to aggressive natural conditions. Galvanized sheet is successfully used in food industry. In fact, galvanized sheet has various types, depending on its purpose. In the industrial construction, which was mentioned above, preference is given to the painted, corrugated, galvanized sheets that are used in the construction of roofs and walls.
Regardless of usage of the main characteristic feature of galvanized sheet remains durability.
Specifications for galvanized sheet regulated GOST 14918-80. This standard applies to the sheet and cold rolled steel coil, hot-dip galvanized steel that is used for cold profiling and painting.
Galvanized sheet steel is subdivided into:
- For cold forming
- For cold profiling
- For painting
- General purpose - OH
the ability to extract (steel group XIII):
- Normal drawing
- Deep drawing
- Very deep drawing
on the uniformity of the thickness of the zinc coating galvanized sheet is divided into following categories:
- with normal polythickness
- with reduced polythickness
According to agreement between manufacturer and customer galvanized steel can be produced:
- with a pattern of crystallization
- plain crystallization
With its low price and excellent performance galvanized sheet steel is of great demand. It should be noted that the galvanized sheet is easy to operate, bend, cook, drill and so on. Today it is one of the most popular materials used in construction, such as the installation of steel structures.
Galvanized sheets with a thickness of 0.50 mm to 0.80 mm are used in the construction works; they are used for production of corrugated sheet, which is used for the exterior of buildings. Moreover, it is also the basis for mounting ladders, industrial areas and etc. In addition, galvanized sheets are suitable for the production of various corrugated sheets for roofing. Another area of application of zinc-plated steel is automobiles. In particular, it is used for parts and bodywork.
Galvanized steel is perfectly protected against corrosion. The same properties have the products made from it, such as pre-paineted steel sheet. Due to this resistance, the life of the material may exceed 45 years.
Profiled steel sheet is corrugated cold-formed profiled steel, which may have different forms. "Bonus Building" Ltd. is manufacturing corrugated galvanized steel. Depending on purpose of usage corrugated sheet is performed with the use of galvanized steel of different thicknesses, which produces profiled sheet for roofing, vertical enclosures or as a cladding material. Production of corrugated sheet in accordance to modern technologies will satisfy the highest demand. Profiled sheet is mainly used for industrial construction of prefabricated buildings. In addition, profiled sheet is used for facade and installation of partition walls, fences and other structures.
Galvanized steel is the raw material for the production of building and roofing materials, rainwater goods, etc.
Galvanized steel is often used as the most economical option for drainage from the roofs of cottages, as well as manufacturing and industrial buildings. The most demanded system is the diversion of water from residential buildings.
Requirements for galvanized sheet:
It is important to pay attention to the quality of the covering of galvanized sheets it should not have any sags and cracks, the surface should be whole, clean and flawless. If the covering layer of the sheet is damaged such sheet can be considered defective.
The usage of galvanized steel sheet:
Galvanized sheet is widely used in construction as a roofing material for the construction of pavilions, for decoration of buildings. In addition, galvanized sheet is widely used in the production of household appliances, industrial equipment.
In conclusion, it should be noted that working with galvanized sheet is quite simple and convenient, those products are safe and durable, have excellent characteristics.
Rules of transportation and storage of galvanized sheet
Galvanized sheets, profiled and pre-painted profiled sheets are transported by any vehicle in accordance with the rules of transportation.
Galvanized sheet is recommended to carry on wooden pallets with a total weight of thickness up to 5 tons per tray. On each tray it should be installed sheets of the same length and thickness. To preserve the integrity of the bundle of sheets it is necessary to tie them up with metal strips. With proper packaging galvanized sheets are not exposed to deformation and damage during transportation.
If the unloading of galvanized sheets will be produced by a loader, then packs of sheets must be pre-stacked on wooden lining. The length of such linings must be larger than overall size of the tray. While unloading galvanized sheets it is impiortant to pay attention to protective layer of the sheet, otherwise corrosion may occur when using such sheet.
When transporting trays of galvanized sheets they are not allowed to be transported in several tiers.
When transporting galvanized sheets at a distance of over 200 km it is not allowed to carry them in open transport. Otherwise, the negative impact of harsh weather is inevitable. The most dangerous is the moisture between the zinc sheets on a tray. Wet sheets tend to damage the layer and bring to corosion.
To prevent the ingress of moisture between the zinc sheets they must be transported in closed transport or packed with special protective film.
When storing galvanized sheets it is permitted to lay sheets in two or more layers if only the the mass of the upper tier will not exceed five tonnes.