Alloy KhN67MVTU-bd.

It is a grade of heat-resistant steel, the old name EP202-vd is also found. It is a stable austenitic alloy which does not change its structure when cooled in the open air after heat treatment. The base of the alloy is nickel: 60.5−68.8%, chromium is in the second position — 17−20%, molybdenum and tungsten are in the third position (4−5%). In addition, the alloy has in its composition titanium, sulfur, carbon, silicon, manganese, phosphorus, aluminum.

Percentage composition of CrN67MVTU- vd (GOST 5632−72)

General characteristic

Heat resistance is the ability of an alloy to withstand various mechanical stresses for a certain period of time without deforming at a significant temperature. If the operating temperature is less than 600 °C, the term «heat resistance» is used. Alloys designed to perform at high temperatures are often divided into 3 groups: 1) heat-resistant steels — to work in loaded condition for a long time at temperatures up to 600 °C; 2) heat-resistant, which have sufficient qualities to work in loaded condition for a long time at higher temperatures; 3) Heat-resistant (scale-resistant) — for operation at temperatures above 550 °C in unloaded and low-loaded state, resistant to chemical destruction of the surface by the gas medium.

Relevance

The most popular semi-finished products of grade ХН67МВТЮ-Вd — pipes, bars and circles. They are needed in power engineering (production of equipment and machinery for the needs of power engineering), rocket and space and aviation technology. They are also used in the manufacture of parts of gas systems and parts that are able to perform under typical stresses. Stress refers to several loading schemes: torsional stress, static tensile or bending stress, thermal load depending on temperature changes, dynamic alternating load with variable frequency and amplitude, dynamic impact of high-speed gas flows on the surface.

Application

Pipe made of CrN67MVTU-Vd steel grade can be used in installations operating under the highest gas pressure. It can be used as a part of gas and water drainage systems, in heat-exchange systems and machine-building structures.

Circle and bar is in demand in both construction and domestic applications. These products can generally be considered versatile. from the production of medical instruments to parts of space technology. Circle in terms of rolling accuracy can be: high (calibrated circle) and standard strength. Necessary in the field of industrial engineering and machine tools, easily welded with a manual arc welding, resulting in rapid assembly of metal structures.

Buy at the best price

Evek GmbH has a wide range of XH67MVTU-bd bars of standard and non-standard parameters in stock. Prices are due to the technological features of production without the inclusion of additional costs. All products are certified. With us it is easy to buy the necessary products in bulk for large-scale projects, we also offer favorable conditions for retail customers. Products are manufactured with strict adherence to the technological process, which guarantees the highest quality, stored under cover or indoors to protect against any damage. Terms of realization of orders are minimal. Wholesale customers receive discounts.