Offshore Platform Alloy Steel Riser Pipe
Welded alloy steel riser pipes >406.4 mm for connecting subsea wells to offshore platforms. HTS 7305.39.50.00: other welded alloy steel tubes, large circular diameter.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• API 5L or DNV certs for marine environment compliance
• Buoyancy module specs if applicable
• Not OCTG - provide flowline affidavits
Related Products under HTS 7305.39.50.00
Industrial Slurry Transport Alloy Pipe
Abrasion-resistant welded alloy steel pipe >406.4 mm OD for mining slurry lines. Classified 7305.39.50.00 as large welded alloy circular pipes.
API 5L Grade B Alloy Steel Welded Pipe
Large-diameter welded pipe made from alloy steel, with external diameter over 406.4 mm, used primarily for oil and gas transmission pipelines. It falls under HTS 7305.39.50.00 as it is a welded tube/pipe of alloy steel with circular cross-section exceeding the specified diameter, not categorized elsewhere in heading 7305. Conforms to API standards for high-pressure applications.
Alloy Steel Welded Culvert Pipe
Heavy-duty welded alloy steel pipe with OD >406.4 mm, designed for stormwater drainage and culverts in infrastructure projects. Classified under 7305.39.50.00 due to its welded construction, circular cross-section, large diameter, and alloy steel material not fitting other subheadings.
Corrosion-Resistant Alloy Steel Transmission Pipe
Welded pipe of high-alloy steel (e.g., 5% Cr) with OD >406.4 mm for natural gas transmission lines. Under HTS 7305.39.50.00 as other welded alloy steel tubes/pipes meeting diameter and cross-section criteria.
Alloy Steel Welded Ventilation Duct Pipe
Large-diameter welded alloy steel pipe for industrial exhaust and ventilation systems in factories. Fits 7305.39.50.00: welded, circular cross-section >406.4 mm OD, alloy steel material.
Heavy Wall Alloy Steel Welded Cylinder
Extra-thick wall welded alloy steel cylinders >406.4 mm diameter for hydraulic accumulator housings. Classified 7305.39.50.00 as other large welded tubes/pipes of alloy steel.