Alloy steel pipe | 15CrMoG alloy steel pipe | Kunlian steel pipe to provide alloy steel pipe is a seamless steel pipe, its performance is much higher than the general seamless steel pipe, because this kind of steel pipe contains more Cr, its high temperature, low temperature, Corrosion resistance is inferior to other seamless steel pipes, so alloy pipes are widely used in petroleum, chemical, electric power, boiler and other industries.
The principle of hydrogen purification in 15CrMoG alloy steel pipe is that hydrogen is adsorbed on the 1515CrMoG alloy steel pipe wall when hydrogen to be purified is passed into the side of the 15CrMoG alloy steel pipe at 300-500°C, due to the lack of two 4d electronic layers of palladium. Electrons, which can generate unstable bonds with hydrogen (this reaction of palladium and hydrogen is reversible), under the action of palladium, hydrogen is ionized into protons with a radius of 1.5×10 15 m, and palladium has a lattice constant of 3.88 ×10-10m (at 20°C), it can pass through the 15CrMoG alloy steel pipe, under the action of palladium, the protons combine with the electrons and re-form hydrogen molecules to escape from the other side of the 15CrMoG alloy steel pipe. On the surface of 15CrMoG alloy steel pipe, the undisassociated gas is impermeable, so the high-purity hydrogen can be obtained by using 15CrMoG alloy steel pipe.
Although palladium has unique permeation properties for hydrogen, pure palladium has poor mechanical properties, is easily oxidized at high temperatures, has a low recrystallization temperature, and easily deforms and embrittles 15CrMoG alloy steel tubes, so pure palladium cannot be used as a permeation membrane. By adding appropriate amounts of Group IB and Group VIII elements to palladium, a palladium alloy can be used to improve the mechanical properties of palladium. 11. Seamless steel tube for semi-axle casing (GB3088-82) is used to manufacture automotive axle bushings and drive axles. For high-quality carbon structural steels and alloy structural steels used in shell-shaft tubes, hot-rolled seamless steel tubes and palladium alloys, silver accounts for about 20-30%, and other components (such as gold, etc.) have a content of less than 5%.
Alloy steel pipe material: 35CrMo, 16-50Mn, 27SiMn, 40Cr, Cr5Mo, 12Cr1MoV, 12Cr1MovG, 15CrMo, 15CrMoG, 15CrMoV, 13CrMo44, T91, 27SiMn, 25CrMo, 30CrMo, 35CrMoV, 40CrMo, 45CrMo, Cr9Mo, 10CrMo910, 15Mo3, A335P11 , P22, P91, T91, Gangyan 102, ST45.8-111, A106B.
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