10-inch Stainless Steel Offshore Pipeline Riser
Seamless stainless steel riser pipe with 10-inch (254 mm) OD for offshore oil/gas platforms, connecting subsea wells to surface facilities. It matches HTS 7304.11.0050 as seamless stainless line pipe within the specified diameter range for pipeline applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other seamless steel not for line pipe
Pipes not specifically for oil/gas pipelines classify under 7304.39 based on general use rather than dedicated line pipe heading.
If used as production tubing in wells
Well tubing for extraction (not transport) falls under 7306, differentiated by downhole vs. surface pipeline positioning.
If longitudinally welded
Welded line pipes of stainless steel move to 7305.11, as welding method overrides seamless construction.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide DNV-OS-F101 or API RP 2RD design verification for offshore certification; essential for BOEM lease compliance
• Declare exact wall thickness and yield strength to distinguish from smaller OCTG; mismeasurement leads to frequent CBP queries
• Bundle with coating specs (e.g
• 3LPE) but classify pipe body separately unless integral to tariff description
Related Products under HTS 7304.11.00.50
12-inch Stainless Steel API 5L Line Pipe
Seamless stainless steel line pipe with 12-inch (304.8 mm) outside diameter, designed specifically for oil and gas pipelines per API 5L standards. It falls under HTS 7304.11.0050 due to its seamless construction, stainless steel material, and diameter between 114.3 mm and 406.4 mm, optimized for high-pressure hydrocarbon transport.
16-inch OD Stainless Steel Sour Service Line Pipe
Seamless duplex stainless steel pipe (e.g., 2205 grade) with 16-inch (406.4 mm) OD for sour gas pipelines, resistant to H2S corrosion. Classified in 7304.11.0050 for its seamless stainless steel construction and diameter specs tailored for oil/gas transport.
14-inch Duplex Stainless Steel Gas Gathering Line Pipe
Seamless 14-inch (355.6 mm) OD duplex stainless pipe for onshore gas gathering lines in shale plays. HTS 7304.11.0050 applies due to seamless stainless steel, line pipe function, and diameter limits for oil/gas infrastructure.
8-inch Stainless Steel LNG Pipeline Export Pipe
Seamless 8-inch (203.2 mm) OD stainless steel pipe for cryogenic LNG export pipelines. Fits HTS 7304.11.0050 precisely as seamless stainless line pipe in the 114.3-406.4 mm diameter for gas transport.