API 5L
2021-6-19u2002·u2002Grades covered by this specification are A25, A, B and 'X' Grades X42, X46, X52, X56, X60, X65, X70, and X80. The two digit number following the 'X' indicates the Minimum Yield Strength (in 000's psi) of pipe produced to this grade. Process. Ingots, blooms, billets, coils or plates used for the manufacture of pipe shall be made via basic oxygen ...
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