Sheet KHN75MBTJU - ЭИ602
Name KHN75MBTJU alloy indicates that the alloying elements included in its composition: X — chromium (Cr), Nickel (Ni), M is molybdenum (Mo), B — niobium (Nb), T — titanium (Ti), s — aluminium (Al). Figure 75 after the letter N indicates the average percentage of Nickel. It gives high-temperature strength and ductility of the material, resistance to aggressive environments. Available in the form of sheet hot or cold rolled.
Percentage composition worksheet KHN75MBTJU
|to 77.6||19−22||1,8−2,3||up to 1||to 0.8||0.9−1.3||0.35−0.75||0.35−0.75||to 0.4||to 0.12||to 0.1||to 0.012|
Due to the alloying elements, the alloy included in the group of austenitic steels. They are very resistant to high temperature, are easily polished and have an attractive appearance. KHN75MBTJU sheet has a greater heat resistance compared to similar alloys (pearlite or martensite), high workability (ductility, weldability), okalinolomatel — resistance to gas corrosion and thermal fatigue. Due to the high merits of this sheet is essential for parts that need long time to work at t° from 700 to 900 °C.
The basic material property of sheet — resistance greatly complicates its processing. Tests show that the interval of dispersion hardening (700−800°C) the characteristics of plasticity change from 3 to 10%. Sheet can be welded and brazed. Welding is allowed to produce without heating and without subsequent heat treatment. Specialists know the peculiarities of technology of welding of austenitic steels, the choice of welding method originate primarily from the thickness of the sheet and shape of the structure. I know that the best welding quality and the elimination of the frenzy of the alloying elements is achieved by using electrodes with a coating of floristically materials. For successful soldering products it is necessary to use a dunite or platinum catalysts, since the surface of the sheet of chromium-Nickel alloy coated with a film of oxide of chromium. The film resistance is rather high, which causes difficulties when soldering.
|t°||E 10— 5||a 10 6||Heat||Density|
KHN75MBTJU superalloy with high creep resistance and fracture in the condition of high temperatures, widely used in industrial production, for example working with moderate pressure in a high-temperature parts of gas pipelines and combustion chambers. A high level of resistance (700−800 MPa), and long-term strength (250−300 MPa) of the alloy make it suitable for the manufacture of propovednik and paramagnetically pipes, various systems of ultra-high pressure gas and steam turbines, as well as use it for parts, all engines, up to the jet.
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In stock, LLC «Electrocentury-steel» a wide range of metal standard and non-standard parameters. Today to buy a sheet KHN75MBTJU and other types of rolled easily through our offices. It can be done without leaving your office, for example by issuing an order on the Internet through the Moscow branch of our Company. To buy the tape, you only need to place your order and click «buy». The timing of orders is minimal. When wholesale purchases are offered preferential discounts.