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ASTM A691 Grade 1-1/4 CR Class 22 Pipe minalmetalloys.com
Class 22 pipes refer to a specific pressure rating classification within piping systems, commonly used in industries such as oil and gas, petrochemical, chemical processing, and power generation. The designation “Class 22” denotes the maximum allowable working pressure (MAWP) that the pipe can withstand under specified operating conditions.