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High resistance to degradation, due to interaction with an aggressive environment, allows the alloy XH58B to be classed as corrosion-resistant. This quality is explained by the content of nickel in the material, which forms a thin, but strong oxide film on the surface of the semi-finished product, provides reliable protection against external unfavorable factors. Therefore, alloys of this type are mainly used for the manufacture of various structures by a welded method, the working conditions of which are associated with a constant interaction with corrosive media, such as nitric or phosphoric acid.
|Percentage of chemical elements in accordance with GOST 5632−72|
|Up to 0,15||Up to 0,03||Up to 0,8||Up to 1||Up to 0,015||Up to 0,012||55.493−60.5||0.5−1.5||39−41|
|The material refers to the type of alloys difficult to weld||Before welding, the contacting surfaces are heated to two hundred or three hundred degrees. After welding, to improve the characteristics of the seam zone, the semi-finished product undergoes high-temperature annealing.|
|Alloys of limited welding type||A quality welded joint may be obtained after preheating the contacting surfaces to one hundred and one hundred and twenty degrees on a Celsius scale and performing the final heat treatment of the seam zone, after completion of the welding work|
|Raw materials, not having restrictions on welding||Preliminary preparation is not required for high-quality welding|
|Name of the characteristic||Symbol||Numeric value|
|Sheet according to GOST 24982−82|
|Limit of proportionality (yield index for deformation of residual type), MPa||ST||345−390|
|Short-term strength (limit value), MPa||Sv||740|
|Relative elongation at breaking strength,%||D5||35|
|Heat treatment||Tempering at temperatures from 1050 to 1090 degrees Celsius|
|Name of the characteristic||The numerical value of the parameter|
|Temperature measurement (T), ºC||900||800||700||600||500||400||300||200||100||20|
|The coefficient of linear expansion, measured at a temperature of 200 ºC (аx106), 1 / deg||15.5||14.5||14.1||13.8||13.4||12.8||12.4||11.7||10.8|
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A huge selection of semi-finished products from the alloy brand ХН58В ensures the implementation of any customer’s wishes. In the event that a standard set of sizes does not suit the customer, the possibility of manufacturing the necessary products can be considered, according to the original sketches. Constantly high quality of manufacture and full conformity of all products from similar materials to requirements of the standard documentation provides good working capacity of semifinished products of mark ХН58В. Each client, regardless of the amount of his order, is provided with attentive attitude and an individual approach.