Alloy ХН55МБЮ (ХН63М9Б2Ю; ЭП666)
Designation
Description
Alloy ХН55МБЮ used: for the production of semi-finished products (forgings, rods, hot rolled sheets, pipes), intended for the manufacture of parts of gas turbine engines and plants; equipment engineering; pipeline fittings AC.
Note
High-temperature Nickel-based alloy.
The recommended maximum operating temperature for limited time +900 °C.
The temperature of beginning of intensive scaling in air +1100 °C.
Standards
Chemical composition
Ni is the basis.
According to TU 14-1-2606-79, the chemical composition is given for the alloy of the grade KhN55MBY-VD (EP666-VD).
According to TU 14-1-3626-83, the chemical composition is given for the alloy grade KhN55MBY-VD (EP666-VD). Cerium is introduced into the metal by calculation and chemical analysis is not determined. The nitrogen content is determined in the finished metal. In the finished metal, the deviation from the chemical composition according to the carbon content is +0.010%, iron -1.0%. In the finished metal, a residual titanium content of not more than 0.20% is allowed. The deviation in titanium is +0.10%. In the finished rolled products, the presence of tungsten content not exceeding 0.20% and copper not exceeding 0.070%
According to TU 14-1-2606-79, the chemical composition is given for the alloy of the grade KhN55MBY-VD (EP666-VD).
According to TU 14-1-3626-83, the chemical composition is given for the alloy grade KhN55MBY-VD (EP666-VD). Cerium is introduced into the metal by calculation and chemical analysis is not determined. The nitrogen content is determined in the finished metal. In the finished metal, the deviation from the chemical composition according to the carbon content is +0.010%, iron -1.0%. In the finished metal, a residual titanium content of not more than 0.20% is allowed. The deviation in titanium is +0.10%. In the finished rolled products, the presence of tungsten content not exceeding 0.20% and copper not exceeding 0.070%