Of alloy steel
Part of: 730690 — Other:
N328989 · 2022-10-28 — The tariff classification and country of origin of pipe-in-pipe assemblies. Correction to Ruling Number N328388.
This replaces Ruling Number N328388, dated October 14, 2022, which contained a clerical error. The Type 304/304L stainless steel outer pipe sleeve in the LNG Offloading Line Prefabricated 24”/30” pipe-in-pipe assembly is made to ASTM A358 and not ASTM 312 as indicated in the ruling. A complete corrected ruling follows. In your letter dated September 26, 2022, you requested a tariff classification ruling. The products to be imported are prefabricated pipe-in-pipe (PIP) assemblies for use in a liquefaction plant. The PIP assemblies consist of three pipes (i.e., Liquefied Natural Gas (LNG) Main…
N328388 · 2022-10-14 — The tariff classification and country of origin of pipe-in-pipe assemblies
The products to be imported are prefabricated pipe-in-pipe (PIP) assemblies for use in a liquefaction plant. The PIP assemblies consist of three pipes (i.e., Liquefied Natural Gas (LNG) Main Line, LNG Offloading Line and the Recirculation Line) that transfer liquefied natural gas from the LNG storage tanks to the LNG loading arms. The LNG Main Line Prefabricated 36”/42” pipe-in-pipe assembly consists of a 36” (914.4 mm) outside diameter (OD) inner core pipe made of Invar 36% nickel alloy steel, a 42” (1066.8 mm) OD outer pipe sleeve made of stainless steel, insulation and stainless steel…
N297795 · 2018-07-12 — The tariff classification of double walled and insulated stove pipes from Canada
The products to be imported are double walled and insulated chimney pipe sections used to remove exhaust gas from wood or pellet stoves. These welded pipe sections consist of two stainless steel concentric hollow profiles each having a wall thickness of .016 inch. They are imported in lengths of 6, 12, 24, 36 or 48 inches and are available in three variations/options: Product A has an outer wall 8.5 inches in diameter and an inner wall 6 inches in diameter; Product B has an outer wall 9.5 inches in diameter and an inner wall 7 inches in diameter; and Product C has an outer wall 10.5 inches in…
h85322 · 2001-08-26 — The tariff classification of stainless steel gas vent system components from Canada.
, you requested a tariff classification ruling. The products to be imported are “Star-34” components for a gas vent system. The components include stainless steel pipes, pipe fittings, joiner bands, firestops and wall thimbles. The stainless steel pipes measure either 3 inches or 4 inches in outside diameter and have a wall thickness of 0.005 inch. They have overlapping seams. The stainless steel pipe fittings include elbows, tees, slip connectors and increasers. The fittings are connected to the pipe by means of a joiner band. The firestops and wall thimbles are used to hold the pipe to the…
089802 · 1991-09-27 — Chimney Pipe Sections of Stainless Steel; Double Walled and Insulated; Ruling 087434, Dated October 18, 1990
Our decision follows. FACTS: The chimney pipe section model # JSC6SA1 is representative of the sections in issue here. A submitted sample, 12 inches long, is of double walled 100% stainless steel construction and consists of two concentric hollow profiles. The outer wall measures 8 inches in diameter and inner wall 5 1/2 inches in diameter. The walls are made separately from stainless steel sheets cut to appropriate length and bent to the desired circumference. The sheets are then spot welded in two places to temporarily preserve their circular shape, after which they are put through a…
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