Carbon and alloy steel energy tubular products, including line pipe, tubing, and casing, finished or unfinished, welded or seamless, having a nominal outside diameter from 2.375 inches (60.3 mm) to 60 inches (1,524 mm) (with all dimensions being plus or minus allowable tolerances contained in the applicable standards), heat treated or not heat treated, regardless of length, wall thickness, surface finish (coated or uncoated), and end finish (plain, bevelled, threaded, or threaded and coupled), in all grades, meeting or supplied to meet American Petroleum Institute (API) 5L, API 5L-B, API 5CT, Canadian Standards Association (CSA) Z245.1, International Standards Organization (ISO) 3183, American Society for Testing and Materials (ASTM) ASTM A333, ASTM A106, ASTM A53-B or their equivalents or enhanced proprietary standards, whether or not actually certified or stenciled, whether or not meeting specifications for other end uses, including single-certified, dual-certified or multiple-certified, for use in oil and gas, piling pipe, or other applications.
For greater certainty, this class includes casing and tubing that are referred to as “green tubes” in the industry. These are formed tubes with the requisite chemistry and dimensions of casing or tubing, but that require further processing before they may be used in a well. They are included in this class as unfinished, non-heat treated, or plain end pipe. The finishing required may be heat treatment, threading, coupling, testing, or any combination of these processes.
The following goods are excluded:
2. Wire Rod
Certain hot‐rolled products of carbon steel and alloy steel, in coils, of approximately round cross section, less than 19.00 mm in actual solid cross‐sectional diameter.