scope:

This specification covers seamless and welded steel, welded open-hearth iron, and welded wrought-iron casing and tubing, seamless steel drill pipe, also (as tentative) seamless and electric-welded steel liners. It includes regular and internal-upset casing with short and long threads, plain-end liners, non-upset and external-upset tubing, and internal-upset and external-upset drill pipe-in the sizes and wall thicknesses applicable to the various grades of pipe as shown in the standard lists (Tables 1 through 4), and in the dimensional tables (Tables 9 through 15). Dimensional requirements on threads and gages, and stipulations on gaging practice also are covered, as well as requirements for couplings and thread protectors.

Nothing contained in this specification is to be construed as granting any right, by implication or otherwise, for manufacture, sale, or use in connection with any method, apparatus, or product covered by letters patent, nor as insuring anyone against liability for infringement of letters patent.