Inconel 690 pipe (UNS N06690 / W.Nr.2.4642) is a high chromium-nickel alloy with excellent resistance to corrosive aqueous media and high temperature atmospheres. In addition to corrosion resistance, alloy 690 has high strength, good metallurgical stability and good fabrication characteristics.Inconel 690 pipe has excellent resistance to high-temperature oxidation and outstanding corrosion resistance, especially in high-temperature sulfur-containing and oxidizing media.Inconel 690 pipe is widely used in harsh environments, such as nuclear power, chemical, heat treatment, waste gas treatment and offshore engineering and other harsh environments.

Socket weld elbow is a kind of high-pressure pipeline connection fittings, belonging to the forged socket series fittings, socket weld elbow processed with internal grooves to form a “socket” that can be connected with another pipe or tube. When connecting, the pipe is inserted into the socket hole of the socket elbow, and then the two are connected together by welding or other means to form a solid joint.

A286 stainless steel is an iron-based austenitic precipitation hardening alloy, adding molybdenum (Mo), titanium (Ti), aluminum (Al), vanadium (V) and trace boron (B) comprehensive strengthening. Below 650 ℃ has a high yield strength and lasting, creep strength, and has a good processing plasticity and satisfactory welding performance. It is suitable for the manufacture of aero-engine high-temperature load-bearing components for long-term operation below 650°C, such as turbine disks, press disks, rotor blades and fasteners. The alloy can produce deformed products of various shapes such as disks, forgings, plates, bars, wires and rings.

Threadolet are primarily used for connecting branch pipes of pipelines, which provide outlets from larger pipes to smaller pipes. The outlets are connected to the main pipe by welding, and for branch pipes, it has a female threaded connection to match. Mainly used for branch pipe connection of reinforcement type fittings, instead of using the reducer tee, reinforcement plate, strengthen the pipe section and other branch pipe connection type. Threadolet has the advantages of safety and reliability, low cost, simple structure, fixed parameters, easy to design and use. It is more and more widely used in high-pressure, high-temperature, large-diameter, thick-walled pipelines, and its function is to lead out the branch pipe on the main pipe to realize the connection of branch pipelines.

Nickel-based alloys are widely used in the aerospace, chemical, ocean engineering and nuclear industries for their excellent performance in high-temperature and high-corrosion environments. Among them, Inconel 625 and Inconel 718 are two representative high-performance alloys.

UNS S31254 Stainless Steel Pipe belongs to the super austenitic stainless steel pipe, which is widely used in many fields due to its excellent corrosion resistance, high strength and good processing performance. Compared with ordinary stainless steel pipe, its chemical composition has been carefully blended, containing a higher proportion of chromium (Cr), nickel (Ni), molybdenum (Mo), nitrogen (N) and other alloying elements, so as to have a more excellent comprehensive performance.