Corrosion resistant alloy flange refers to a flange made of alloy materials with good corrosion resistance, used to connect pipelines, equipment, and fittings in pipeline systems, and can maintain stable performance in various corrosive environments.

Execution standard

International standards such as ASME B16.5 specify the dimensions, pressure temperature ratings, and material requirements for titanium flanges.

Industry standards, such as DNVGL-RP-0417 in the field of ocean engineering, specify the corrosion protection and testing specifications for titanium alloy flanges in deep-sea equipment.

National standards, such as GB/T 29168.1-2012, specify the technical conditions for titanium flange forgings, including chemical composition, mechanical properties, etc.

Application field

Ocean engineering: used for pipeline connections in subsea oil trees, deep-sea robots, seawater desalination systems, etc. For example, the wellhead connection flange of subsea oil trees is often made of Ti-31 corrosion-resistant alloy flange to resist the corrosion of H ₂ S/CO ₂.

Petrochemical industry: In the pipeline system of petrochemical industry, it is necessary to connect and transport various corrosive media. Corrosion resistant alloy flanges such as Monel alloy flanges and Hastelloy alloy flanges are widely used.

Pharmaceutical industry: The pharmaceutical process often involves corrosive media such as acid and alkali. Alloy 20 flanges can be used for connecting equipment such as acidification reaction vessels, which can resist mixed acid corrosion and hydrogen embrittlement.

Food processing: In equipment such as food grade phosphoric acid storage tanks, alloy 20 flanges can ensure zero pollution and leakage, meeting food hygiene standards.