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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If carbon steel construction
Non-stainless carbon steel line pipes fall under 7304.19, differentiated by alloy composition despite similar pipeline use.
If supplied in fittings or bends for pipeline assembly
Tube or pipe fittings of stainless steel classify under 7307 based on function as connectors rather than straight line pipe.
If engineered as gas turbine casing components
End-use as machinery parts (e.g., turboexpander housings) shifts classification to Chapter 84 under specific function.
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
• Obtain NACE MR0175/ISO 15156 certification for sour service to ensure fitness-for-service in H2S environments; critical for customs valuation disputes
• Include hydrostatic test results (>90% SMYS) in documentation to substantiate pipeline-grade strength and prevent reclassification
• Watch for anti-dumping duties on certain stainless grades from Asia; check USTR lists and file scope rulings if applicable
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.
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.
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.