API 5L Seamless Pipe - X52, X42, X60, X65, X70 Line Pipe x70 steel yeild stress
API 5L welded and seamless steel pipes come in a range of EWR sizes and grades. Grades are usually covered by A25, A, B and X grades. The X grade format is followed by a two-digit number. For example, X42, X46, X52, X56, X60, X65, X70, and X80. The numbers represent the pipes PSI minimum yield strength that is produced.
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