Designated as UNS N06035 or DIN 2.4643, Alloy G-35 is a nickel-chrimium-molybdenum alloy designed to resist “wet process” phosphoric acid, which is used in the production of fertilizers. Similar to Hastelloy G-30, G35 alloy also has excellent resistance to localized attack in the presence of chlorides, since this can be a problem beneath deposits in evaporators used to concentrate “wet process” phosphoric acid. Besides, it is much less susceptible to chloride-induced stress corrosion cracking than the stainless steels and nickel-chromium-iron alloys traditionally used in “wet process” phosphoric acid. Due to the high chromium content, Hastelloy G-35 is extremely resistant to other oxidizing acids, such as nitric, and mixtures containing nitric acid. It possesses moderate resistance to reducing acids, as a result of its appreciable molybdenum content, and, unlike other Ni-Cr-Mo alloys, it is very resistant to “caustic de-alloying” in hot sodium hydroxide.
The socket welding couping is a pipe connector machined after forging round steel or steel ingot. Its connection form is socket welding (Socket Welding-SW). The steel pipe is inserted into the socket hole for welding. Therefore, it is called "socket pipe clamp". The main manufacturing standards are ANSI/ASME B16.11 and GB/T 14383-2008. The varieties of socket pipe clamps include double socket pipe clamps and single socket pipe clamps. Among them, the double socket pipe clamps are divided into equal diameter and different diameter, and the different diameter double socket pipe clamps are also divided into concentric and eccentric. Socket pipe clamps can be widely used in pipes of different diameters, including single-way, three-way, four-way, etc., and can also be used for water meters and valves. Due to the use of the socket structure, the pipe joint reduces the cost, is extremely convenient to install, use and maintain, and has a very high leak-proof ability, and has great market prospects.
Alloy G-35/UNS N06035 of Chemical composition and mechanical properties