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The material with the marking ХН38ВТ belongs to the category of high-alloyed alloys with high values of heat resistance. It is also known under the older name — EI703. A similar composition, produced on the basis of iron and nickel with the addition of a number of other chemical additives for alloying, is highly efficient when working in rather harsh industrial conditions. At present, an extensive assortment of semifinished products of different profile sections, geometric sizes and purposes is produced from alloy ХН38ВТ .
The main useful qualities of this material are due to its quantitative and qualitative composition. Typically, in raw materials with this labeling, there are from thirty-five to thirty-nine percent nickel and from twenty to twenty-three percent chromium. The basis of the alloy is iron, and as additional alloying components can act sulfur, manganese, tungsten, as well as titanium and some other elements.
Percentage of GOST 5632−72 .
|Al||C||Ti||Fe||Ni||Cr||Mn||P and S||Ce||Si||W|
Such a combination of ingredients provides this raw material with high heat resistance and resistance to corrosion damage. The refractoriness of the alloy primarily depends on the strength of the atomic compounds in the structure of the material. Therefore, for this indicator, all such materials can be divided into two types: heat-resistant and heat-resistant. As a rule, heat-resistant steels are able to effectively withstand temperatures exceeding six hundred degrees Celsius in a strictly defined time interval. If the permissible temperature of the work of the semi-finished product is less than six hundred degrees, here it will be more about the heat resistance of the product.
From a raw material of this type, a rather large range of products is produced, from wire and sheet products, to wheels and other profile products, which is in great demand in many areas of the modern production complex. But the most popular pipe is ХН38ВТ. Due to its high operating parameters, this pipe has proved itself well enough when working in a gas environment. Therefore, the main area of use of semi-finished products of this type are gas supply systems and heat and water supply to houses, building structures, food and chemical industries, and the aviation industry. It should be noted that the performance of semi-finished products of this type will depend not only on their chemical composition and processing method, but also on the load distribution schemes for the part during operation. So the stability of the product to the dynamic effect of the gas velocity flow or variable load of different amplitude and frequency will differ significantly in the time of reliable operation.
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On our site we offer a wide range of products from chromium-nickel alloys. The high quality of products and the absence of intermediaries determine the most favorable conditions for the purchase of products from the alloy HN38VT for solving any production problems. Delivery in the shortest time in any region of the country and abroad, the compliance of products of regulatory documentation has long won the trust of regular customers. Due to the reasonable cost and a wide range of semi-finished products, chromium-nickel alloys enjoy constant popularity in all spheres of production.