Inconel690 alloy pipe fittings specifications and pressure rating are nickel based alloys that contain a large amount of Ni, Cr, and a small amount of Si, Mn, Cu, Al, Ti. They have high high-temperature strength, as well as good performance, carbon resistance, and sulfur resistance. Stability in corrosive environments with high concentrations of Cr and Ni. Applied to the compressor pipes and synthetic ammonia output pressure pipes of boiler equipment, steam tower equipment.
Inconel690 Special Performance:
Resistant to chloride and high temperature and high pressure water stress corrosion, resistant to strong oxidizing media and HNO2-HF mixed corrosion.
Commonly used in nuclear waste treatment plants, steam generators, and nitric acid resistant components.
The specifications and pressure rating of Inconel690 alloy pipe fittings, as well as the composition of elements, are important in different materials of pipe fittings, elbows, and tees. In the original state, the austenite grains are very small. With the prolongation of insulation time, the grains grow significantly, the number of grain boundaries decreases, and more twinning occurs. Some twinning even runs through the entire grain, and with the prolongation of insulation time, the dislocation density decreases and the grain boundary migration rate increases, The accelerated growth rate of grains provides conditions for the enrichment of inclusions and the increase of element content at grain boundaries. The presence of carbon and nitride and their solid solution in the austenite can not only refine the grains, but also have a pinning effect on the movement of grain boundaries and dislocations.
