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Pipe, wire, rod HN73MBTJU


Grade analogue W. Nr. Aisi Uns En Order
HN73MBTYu EI698 Buy from stock, view availability


HN73MBTJU (EI698) grade is high-alloyed heat-resisting steel. Except for substantial proportion of nickel (65,073 — 71,2%) and chrome (26−29%), there are also niobium (2,2%), titanium (<2,75%), molybdenum (<3,2%), iron (1%). Such components as carbon, phosphorus, sulfur, mangan and other are contained in a tenth and in one hundredth of percent. Alloying has to be done for increasing workable features (a heat-resistance, a resistance to aggressive environment). A superfluous alloying increases a cost of alloy. That is why it has to be done very economically.

Chemical composition of alloy

Ni Cr Fe C Mn Nb Mo Si P S P Ti
basis 26−29 1 ≤0.08 ≤0.4 1.8−2.2 2.8−3.2 ≤0.06 ≤0.0151 ≤0.07 ≤0.01 2.35−2.75


Smelt of a metal is done in open induction furnace. Rolling is done at a temperature of 1170 °C at the beginning, and at 800 °C in the end of process. After deformation, a steel should be cooled. According to a first pattern, there must be done a cooling in water, in oil, or in air. During a second pattern, a cooling is done with a help of water with further holding (3−4.5 hours). Pipes can be made of standard and increased accuracy. There are manufactured pipes of various thread types on customer’s request: for example with a cylindrical cut thread of different length or without thread at all. Bar, rod are made with a help of hot-rolling and design. It must be done for making an accurate outer diameter. Welding of HN73MBTJU grade is done with a help of electrodes KTI-762.


HN73MBTJU pipes can work under load at a temperature of about 650 °C for a long time. They are used in mechanical engineering, for manufacturing disks, runners. It is also used in industrial chemistry, petrochemical, paper-and-pulp industries. This steel is suitable for making gas-water conveyance pipes, which are used in industrial, civil building (f. e. in heat-exchange systems). Besides, there can be made connecting gangways and pipe fittings for tubes of stainless steel. In this case, seams must possess the same requirements toward heat resistance. It depends on utilised alloy, selection of welding materials, welding conditions, presence of heat treatment on completing a process.

HN73MBTJU pipe, wire supplier

«Auremo» HN73MBTJU pipe, wire supplier proposes to buy rod, wire, pipe for the most favorable HN73MBTJU pipe, wire price. There is a wide range of goods of a high quality in stock. An availability of products and efficiency of delivery are conditioned by a fact that we have offices in Moscow, St. Petersburg and cities of Central Europe. You can easily buy HN73MBTJU pipe, wire. HN73MBTJU pipe, wire price depends on order quantity and additional conditions of supply. A quality is compliant with GOST (all-Union State Standards) and International Standards. If you buy HN73MBTJU pipe, wire by wholesale, you will be given special discounts.

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All products are certificated. A quality is guaranteed by rigorous technology compliance of a manufacture. Our managers are always ready to answer any questions and to give a knowledgeable assistance. You can easily buy HN73MBTJU pipe, wire by connecting us with a convenient way for you. Phone numbers, e-mail addresses of the closest company’s offices are located in section «Contacts». Order a service «Call-back» and our manager will help you to choose products that will fit your individual requirements. Wire, pipe, rod, bar are always in stock. Buy goods in HN73MBTJU pipe, wire supplier for an affordable HN73MBTJU pipe, wire price.