Of alloy steel
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: > Line pipe of a kind used for oil or gas pipelines: > Other, longitudinally welded: > Of alloy steel
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Products classified under HTS 7305.12.50.00
API 5L Grade X65 Alloy Steel Line Pipe
Longitudinally welded alloy steel pipe with external diameter over 406.4 mm, designed for high-pressure oil and gas pipelines per API 5L X65 specifications. Its circular cross-section and alloy steel composition classify it under HTS 7305.12.50.00 as line pipe for pipelines. Used in onshore and offshore drilling operations.
X70 Alloy Steel Welded Pipeline Tube
High-strength longitudinally welded alloy steel tube exceeding 16 inches in diameter, rated for X70 grade in natural gas transmission lines. Classified under HTS 7305.12.50.00 due to its design for oil/gas pipelines and alloy steel material. Essential for long-distance energy transport infrastructure.
16-Inch OD Alloy Steel Gas Line Pipe
Longitudinally welded alloy steel pipe with 16.5-inch external diameter for natural gas distribution pipelines. Meets HTS 7305.12.50.00 criteria as other line pipe of alloy steel over 406.4mm OD, circular cross-section. Corrosion-resistant for buried installations.
API 5L X52 Large Diameter Line Pipe
Alloy steel pipe, longitudinally welded, over 406mm OD, compliant with API 5L X52 for crude oil pipelines. Falls under HTS 7305.12.50.00 as welded line pipe of alloy steel for oil/gas. High yield strength for deepwater applications.
Corrosion-Resistant Alloy Pipeline Tube
Longitudinally welded 18-inch OD alloy steel tube with enhanced corrosion resistance for offshore gas lines. HTS 7305.12.50.00 applies due to alloy steel, circular >406.4mm, and specific oil/gas pipeline design. Features epoxy coating compatibility.
High-Pressure X80 Alloy Line Pipe
Premium longitudinally welded X80 grade alloy steel pipe, 20-inch diameter for high-pressure oil transport. Classified HTS 7305.12.50.00 for its alloy composition and large-diameter pipeline specificity. Advanced microstructure for extreme conditions.
Sour Service Alloy Steel Pipeline Pipe
Longitudinally welded alloy steel pipe over 16 inches OD, engineered for sour (H2S) gas service in pipelines. HTS 7305.12.50.00 due to alloy steel and line pipe function. Meets NACE standards for harsh environments.
Offshore Oil Line Alloy Steel Tube
Heavy-wall longitudinally welded alloy steel tube, 24-inch OD for subsea oil gathering lines. Fits HTS 7305.12.50.00 as large-diameter welded line pipe of alloy steel. Buoyancy module compatible.
Large Diameter X60 Transmission Pipe
X60 grade alloy steel longitudinally welded pipe exceeding 406.4mm OD for long-haul gas transmission. HTS 7305.12.50.00 classification for alloy line pipe used in pipelines. Optimized for compressor station connections.
Subsea Gas Line Alloy Pipe
Alloy steel pipe longitudinally welded with 22-inch external diameter for deepwater gas export lines. Meets HTS 7305.12.50.00 as other large welded line pipe of alloy steel. Anode attachment ready.