Hastelloy C276 is a corrosion-resistant alloy that can be used in a variety of high-corrosive conditions, including oxidation and reduction. Sulfuric and hydrochloric acids are also resistant to Hastelloy flanges. It outperforms most other nickel alloy grades for chemical processing applications, such as Inconel and Monel, and is one of the most common and corrosion-resistant alloys.
Due to their ability to withstand a variety of harsh media, Hastelloy flanges are commonly found in chemical manufacturing applications such as those exposed to acid chlorides, solvents, formic and acetic acids, and acetic anhydride, moist chlorine gas, hypochlorites, chlorine solutions, and phosphoric acid.
Uses of Hastelloy Flanges-
Slip-on flanges manufactured of Hastelloy C-276 for sour gas applications Flanges are required since the waste handled by these industries is usually very toxic, necessitating the use of the right Flanges. Hastelloy C276 Blind Raised Flanges can be welded using any normal welding process; however, procedures, solutions containing oxygen acetylation, and submerged arc welding are not suggested for corrosive environments.
Because Hastelloy C276 Spectacle Blind Flanges harden more quickly than most austenitic stainless steels, it is frequently essential to roll them cold with intermediate anneals. Hastelloy C276 socket weld flanges should be hot forged between 1600 and 2250 degrees Fahrenheit (870 to 1230 degrees Celsius).
Hastelloy C276 Weld Neck Flanges can be heated and cold-formed with caution since it tends to work hard.
Hastelloy C276 Threaded Flanges are used in process equipment such as reaction tanks, evaporators, heat exchangers, and transfer pipes. Hastelloy C276 lap joint flanges are frequently used in marine construction, pollution protection, and sewage disposal. Hastelloy C276 Ring Type Joint Flanges are rapidly chilled after being heat-treated at 2050°F.
It is preferable to machine Hastelloy UNS N10276 Flanges in their annealed state whenever possible. They are the ideal material for any sector that commonly handles corrosive chemicals.
Source- Hastelloy c22 Flanges