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Galvanized steel pipes are called galvanized pipes. Modern production and construction place high demands on the operational characteristics of rolled metal. A special layer (consisting mainly of zinc), which is used to cover pipes from the inside and outside during hot-dip galvanizing, increases the service life of the products. For comparison: steel metal products last about 4 years, while zinc-coated ones last up to 25. Therefore, galvanized pipes are gradually replacing non-galvanized ones in both construction and mechanical engineering.
It is best to buy pipe hire from reliable and proven companies. This guarantees that the products will be of high quality, durable and long-lasting. If you need to purchase pipes and other rolled metal products, you can do it here.
Features of galvanized pipes
Uncoated steel is exposed to active oxygen. The effect increases if oxygen is dissolved in water. The rate of corrosion of a steel alloy, depending on its brand and climatic conditions, varies from 0,2 to 1 mm per hour. Galvanized pipes, corresponding to GOST 3262-75, corrode at a rate of no more than 0,02 mm per hour.
Pipes are of the following types:
- seamless galvanized pipes;
- electric welding;
- profile;
- water and gas pipelines
The second classification affects the wall thickness of the product: with a wall thickness of 2-4 mm, the pipe is considered light; 4-4,5 – normal; 4,5-5 - reinforced.
Assortment of production
In order to meet all production needs, rolled metal is produced in a wide range. The diameter of the product can vary from 17 to 159 mm, the value of the conditional passage of a galvanized pipe is 10, 15, 20, 25, 32, 40, 50, 65, 80, 90, 100, 150. Small deviations in diameter are also permissible (no more than 0,5 .75,5 mm). Therefore, a galvanized 76 pipe can actually have a diameter of XNUMX mm.
For example, water and gas pipeline galvanized pipes of 20 and other standard sizes can have a multiple length of 4 to 12 m, while leaving a mandatory five-millimeter allowance on the edges. Zinc-coated pipes 32 are available with both long and short threads, the parameters of which are also determined by the state standard.
Galvanized pipes of 25, 32, 40 and other standard sizes are widely used. In particular, they are used to transport various liquids and gases.
Choosing galvanized pipes 34 and second grade from reliable manufacturers, you are guaranteed to purchase a reliable product that meets GOST and the needs of your production.
