Pipes goryachedeformirovanny, seamless, iron
For pipeline laying though what mission, high-quality pipes are necessary. There are many versions of such products suitable for these purposes as creation of accurate equipment, cryogenic equipment, a pipe are used in shipbuilding, aircraft industry, mechanical engineering, in a car and the chemical industries. But we will have a talk about the goryachedeformirovanny.
Pipe seamless goryachedeformirovanny GOST 8732-78 assortments on an external diameter and total length, are used in the industry, mechanical engineering and a life by transfer of liquids and gas under the highest pressure. They own the highest reliability and rather low price therefore неподменны and are extensively used for pipelines of different degree of the importance. The pipe goryachedeformirovanny seamless GOST 8731-74 on technical requirements, shares on three look, especially thick-walled, thick-walled and thin-walled.
The pipe thick-walled seamless iron is the product which thickness of walls fluctuates from 12,5 to 40мм. Also treats the second class of iron pipes which are used in the main pipelines with the highest and low pressure. In pipelines for water supply, gas and oil, also combustible and other petrochemical goods the pipe thick-walled iron, seamless, for ensuring overestimated reliability is used.
The chemical structure of a material from which such product is produced, outright is in dependence from its future appointment.
The pipe the seamless corrosion-proof becomes from an integral ingot of steel which subject to heat treatment in temperature of a rekristallizatsiya surpassing temperature. An ingot roll on machines which do an opening in the center. The machine for rolling is called as the pipe-rolling unit. Such product has no longitudinal or spiral seam from welding. The pipe seamless GOST happens a various form: the round katanny, rectangular katanny and katanny square.
The trumpet industry lets out also the range of goryachedeformirovanny corrosion-proof (iron) pipes from the carbonaceous and alloyed steel with special qualities (10Г2, 30ХМА, 15ХМ, 09Г2С, etc.) In recent years with development of suburban construction, universal construction of personal houses with perfectly issued facades, activization of cottage building such pipes became extensively применяятся in this branch.