The product covered by this investigation is certain welded carbon
and alloy line pipe, of circular cross section and with an outside
diameter greater than 16 inches, but less than 64 inches, in diameter,
whether or not stenciled. This product is normally produced according
to American Petroleum Institute (API) specifications, including Grades
A25, A, B, and X grades ranging from X42 to X80, but can also be
produced to other specifications.
Specifically not included within the scope of this investigation is
American Water Works Association (AWWA) specification water and sewage
pipe, and the following size/grade combinations of line pipe:
Having an outside diameter greater than or equal to 18
inches and less than or equal to 22 inches, with a wall thickness
measuring 0.750 inch or greater, regardless of grade.
Having an outside diameter greater than or equal to 24
inches and less than 30 inches, with wall thickness measuring greater
than 0.875 inches in grades A, B, and X42, with wall thickness
measuring greater than 0.750 inches in grades X52 through X56, and with
wall thickness measuring greater than 0.688 inches in grades X60 or greater.
Having an outside diameter greater than or equal to 30
inches and less than 36 inches, with wall thickness measuring greater
than 1.250 inches in grades A, B, and X42, with wall thickness
measuring greater than 1.000 inches in grades X52 through X56, and with
wall thickness measuring greater than 0.875 inches in grades X60 or
greater.
Having an outside diameter greater than or equal to 36
inches and less than 42 inches, with wall thickness measuring greater
than 1.375 inches in grades A, B, and X42, with wall thickness
measuring greater than 1.250 inches in grades X52 through X56, and with
wall thickness measuring greater than 1.125 inches in grades X60 or
greater.
Having an outside diameter greater than or equal to 42
inches and less than 64 inches, with a wall thickness measuring greater
than 1.500 inches in grades A, B, and X42, with wall thickness
measuring greater than 1.375 inches in grades X52 through X56, and with
wall thickness measuring greater than 1.250 inches in grades X60 or
greater.
Having an outside diameter equal to 48 inches, with a wall
thickness measuring 1.0 inch or greater, in grades X-80 or greater.
The product currently is classified under U.S. Harmonized Tariff
Schedule (``HTSUS'') item numbers 7305.11.10.30, 7305.11.10.60,
7305.11.50.00, 7305.12.10.30, 7305.12.10.60, 7305.12.50.00,
7305.19.10.30, 7305.19.10.60, and 7305.19.50.00. Although the HTSUS
item numbers are provided for convenience and customs purposes, the
written description of the scope is dispositive.
Source: 67 FR 8937 (February 27, 2002).
Note that HTSUS numbers are subject to change. |