Among the assortment of stainless metal rolling, supplied by the company "Inonoxmarket", the components for the arrangement of the railing, namely pipes and peril fittings, occupy a special place.
Many customers prefer stainless steel structures, because this material is durable, strength, resistance to external factors and is most suitable for the manufacture of periral structures. For many years, stainless steel railing can withstand high loads without losing their operational and aesthetic qualities.
However, not every stainless pipe is suitable for the manufacture of railings, although division into ordinary and perile pipes can be called conditional. It is generally accepted that the standard dimensions of the railing pipes are 16 mm, 25 mm, 38 mm and 50.8 mm. Sometimes the diameters of either 38 mm or 50.8 mm are replaced by 42.4 mm. Depending on the purpose, these pipe is divided into handrails, racks (balusters) and strings. The periral pipes can be attributed more to structural ones, since the strength of the seam is not as important in them as, for example, in food.
AISI 304 products are occupied by AISI 304 products, AISI 201, a very small part of the AISI 316 brand is occupied by half the volume of the pipes in the Russian market due to its high price. An interesting fact is that in Europe 316 stars are mainly used or, in extreme cases, 304, but Aisi 201, on the contrary, is not quoted.
When ordering, it must be borne in mind that the larger the diameter of the pipe at one wall, the more it is, but since the railing position is 50.8*1.5 mm and 38*1.5 mm are produced in large volumes than other dimensions, Then they can cost cheaper than pipes of smaller diameter due to production volumes. Also, if the order is large, then due to the fact that installation costs are imposed, as a result, the price of a single product is blurred. The cost of the manufacture of railings of the AISI 304 and 201 grades can be almost the same, and if you look at the characteristics and practicality, then AISI 304 wins undeniably.
In pricing for products, an important role is played by the country of origin of the goods. In Russia, Asian and domestic manufacturers are mainly represented. Separately, Chinese pipes need to be allocated. Due to high competition in the stainless steel market, China offers a wide selection of products from the cheapest to more expensive material. However, when ordering, you need to carefully choose the manufacturer’s company in order to guarantee to get a quality product and not become a client of an unscrupulous company. Therefore, INOKSMARKET specialists extremely recommend contacting experienced metal traders who have long been cooperating with Chinese factories.
Russian manufacturers have no problems with the quality of the goods, it is always excellent and meets all the necessary criteria and requirements, but the price is higher than that of Chinese companies. The difference in cost is usually 5-10%. The largest domestic manufacturers - the Vladimir branch of the Italian concern "Marchegaly RU" and the Elektrostal "Rusins" - managed to establish themselves with perennial deliveries. They produce pipes according to imported standards and from imported raw materials. This is dictated by modern realities - consumers are accustomed to navigate precisely in the classification of brands according to the AISI system. Now Russian manufacturers occupy approximately half the volume of the peril produced, while 10 years ago they were not presented on the market at all. In the segment of stainless pipes, the railing occupies a fairly large part. For example, in Rusininov, perile pipes are 10% of the assortment, and they produce about 3,000 tons
The surface of the perile pipes can be polished (mirror) or grinded. Polished pipes make up a larger volume of the domestic market, they are ordered much more often. Grinded are less common. If you consider the surface of such a pipe under a microscope, it will become clear that it is more rough, and in these grooves, with improper operation, materials that cause spot corrosion, say, metal chips, dust, may accumulate. While the surface of a polished pipe is more or less homogeneous.
In the manufacture of railings, it is always extremely important to observe the culture of production. Often, customers turn to the question: "Why do welding connecting seams blacken?" Here it is necessary to clearly understand that the stainless steel must be welded by stainless steel, and it is polished with new polishing elements, otherwise the old chips and microparticles of black metal rolling will penetrate the structure of stainless steel and cause point corrosion in it.
Although the stainless steel is quite unpretentious material, but to make the railing from it longer, they need special care. On the street, products can be covered with black or colored spots from atmospheric precipitation
