Iron zinced: characteristics, purpose

Iron galvanized found widespread today. It is used in construction and industry, and on its surface, even under the conditions of the plant, a paint is applied to protect it, which allows to decorate the material.

It is used for making utensils, stamped parts, containers, etc. Spheres and possibilities of using galvanized sheet are wide, this is due to features and characteristics. The galvanized sheet retains its properties under the influence of physical factors and mechanical load.

Appointment

Iron galvanized acts as a convenient material in the construction of fences, floors and is used as decking. Its characteristics are highly valued when carrying out roofing works. The most convenient material is for the installation of roofs, which have a slight slope. The sheet can be pre-painted and used in the arrangement of roofs with a large slope. Painting materials are applied not only before the roofing, but before the erection of fences, as well as in the construction of prefabricated modular structures.

What else do I need to know?

The construction industry is not the only one where iron is galvanized. It acts as an excellent material in the manufacture of household appliances. Electric stoves, refrigerators and washing machines, as well as many other things are made using a galvanized sheet. The material has found its distribution in the field of instrument making.

Characteristics of galvanized sheet in accordance with GOST 14918-80

When the aforementioned state standards are used in production, cold rolled carbon steel rolls are used as raw material, the surface quality of which is regulated by GOST 16523-89. In this case, the width can vary from 710 to 1800 mm, and as to the thickness, this parameter should be in the range of 0.5 to 2.5 mm.

After reading the markings, you can understand that the steel is divided into three classes. If you notice the letter "P" among the alphanumeric designations, this indicates that the thickness of the coating can be a limit of 40 to 60 microns. If there is a "1" in the marking, the thickness of the coating should vary from 18 to 40. As for the number "2", this parameter varies from 10 to 18 microns.

If you notice the designation "XH", then before you steel for cold stamping. Galvanized steel is divided into sheets:

• Normal;
• Deep;
• Very deep drawing.

To achieve the necessary mechanical properties, the sheet is first annealed by a cold-rolled method, and then a zinc coating is applied to its surface. At the final stage, the sheet is passed through a bath of molten zinc. This process is accompanied by the application of zinc to the metal strip. As a result, it is possible to achieve resistance to corrosion.

Iron zinced is manufactured using zinc of grades Ц0 and Ц1. Among other things, aluminum, lead and other materials are added to the bath. At the request of the customer, conservation is carried out, which allows achieving a higher level of surface protection.

Additional areas of use

The scope of galvanized metal is much wider than one can imagine. This material is used during the cladding of buildings, during the installation of ceilings, and is indispensable in the field of agricultural construction. The sheet is used for storage facilities, bunkers and silo towers. Galvanized iron, corrosion that is not terrible with proper handling and operation, has found its application in civil engineering. From the canvas, gutter and trough systems are made.

Additional technical characteristics of cold-rolled galvanized sheet in accordance with GOST 14918-80

Such material in the production process can be covered with moisture-resistant powder paints. In places where the web is bent, the thickness of which does not exceed 1 mm, should not be covered by delaminations that will strip the metal. The bend should be at an angle of 180 °. In places of bending, the occurrence of small cracks along the entire length is permissible, but the dimensions of the spherical hole must not exceed the tolerances.

The value of the relative elongation may be greater than one set by one. Galvanized iron, the sheet of which will be subjected to tearing, should exhibit temporary resistance. This indicator ranges from 300 to 490 MPa. The relative elongation will be 21%.

The cost of galvanized iron

The price of galvanized iron will vary depending on the size of the sheet. If you have a canvas with dimensions of 1000 x 2000 mm, then you will have to pay 266 rubles for the sheet, with a thickness of 0.4 mm. If the dimensions of the sheet increase to 1250 x 2500 mm, the price will be equal to 388 rubles.

Paint choice

If you have a question about how to paint galvanized iron, you should choose one of the options presented by the market. On sale it is possible to meet "Цикроль", representing an acrylic matte composition, among which ingredients contain active anticorrosive additives and organic solvents.

Use this mixture is possible outside the premises, using as a protection for roofs, sheet profile, corrugated board, drain pipes, roofing sheet and gutters. The paint is characterized by high opacity and light fastness, has excellent characteristics in weather resistance and water resistance. The material is easy to use, has excellent adhesion to the surface, and is also one of the best options for repairing galvanized surfaces. The main advantage is the absence of the need for preliminary priming. Application should be carried out in one layer.

If you still do not know how to paint galvanized iron, you can pay attention to the waterproof paint "Silver", which is an anticorrosive one-component enamel for galvanized and black metal. A mixture is prepared on the basis of aluminum powder, perchlorovinyl resins, as well as corrosion-resistant additives and a mixture of organic solvents.

Enamel thixotropic has high weather resistance, wear resistance and oil-and-petrol resistance. Galvanized steel after such protection will have an increased barrier effect.

With the help of these paints you can protect the material from the effects of precipitation, sun and salt air. The paint does not burn out, and after application it dries quickly and extends the design life.