ХН77ТЮР, Nimonic 80a

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Thanks to the optimal technological and operational parameters, the HN77 TUR pipe copes with the hardest work and actively resists the influence of most harmful industrial factors, ensuring the reliability and durability of the operation of important equipment. Alloys based on nickel and chromium have long been a fundamental material for many manufacturing industries.

Composition and properties

The chrome nickel alloy tube ХН77ТЮР differs with a whole complex of high performance characteristics, due to the perfectly balanced composition.

Percent composition according to GOST 5632−72
Alloy FROM Mn Fe P S Ni AT Cr Al Ti Si Pb Impurities
ХН77ТЮР ≤0.07 ≤0,4 ≤1 ≤0.015 ≤0.07 70--77,4 ≤0.01 19−22 0.6−1 ≤0,02 2.4−2.8 ≤0.6 ≤0.001 ≤0.015

In addition, it should be noted that nickel in the alloy KhN77TYUR provides a sufficiently high ductility, which facilitates the processing and installation of equipment. Such pipes are highly resistant to corrosion and significant heat resistance, which allows them to be used at elevated temperatures and the presence of an aggressive environment in the exploitation zone.


Mechanical properties
Name of the characteristic Symbol Numeric value
Limit of proportionality (yield index for deformation of residual type), MPa ST 620
Short-term strength (limit value), MPa Sv 950
Relative elongation at break,% D5 20
Value of relative narrowing,% Y 15
Hardness after hardening (Brinell method), MPa 255−321
Physical properties
Name of the characteristic The numerical value of the parameter
The coefficient of linear expansion, measured at tº 100ºC (ах10 6), 1 / deg 12.67
Heat capacity (I), W / (mxgrade) 13.9
Density, g / cm 3 8.18
Ud. Electrical resistance ®, Ohmmm 2 / m 1.247

Application of

The scope of this type of pipes is quite diverse, they are used for the manufacture of various pipe fittings, the production of heat exchangers. Pipes brand ХН77ТЮР are used in the pulp and paper, oil and gas and processing industries for the production of elements of increased strength, designed to work in an aggressive environment. In the engineering industry, such pipes are relevant for the manufacture of parts of gas turbine engines, designed for use at operating temperatures up to 750ºC. In addition to the industrial sphere, durable and beautiful material has proven itself in everyday life. Excellent hygienic qualities make it possible to widely use such pipes for water supply systems.

Buy at the best price

A wide range of products from chromium-nickel steels is offered on the site of «_" Ltd. High quality of products and absence of intermediaries determine the most profitable offers for the acquisition of such material as alloy ХН77ТЮР for solving any production tasks. Delivery in the shortest time in any region of the country and abroad, Compliance of regulatory products has long won the trust of regular customers. Thanks to relatively low cost and a wide range of semi-finished products, the material is used mennoy popular in all areas of production.