X70 Alloy Steel Gas Pipeline Tube
High-strength welded alloy steel pipe (16-inch OD >406.4mm) for natural gas transmission lines, meeting API standards for sour service environments. Falls under HTS 7305.19.5000 due to its alloy composition and dedicated use in gas pipelines.
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.
If used as casing or tubing in wells
Oil/gas well casing/tubing (even alloy) classifies under 7304, separate from line pipe.
If made of carbon steel, not alloy
Carbon steel versions of identical line pipe geometry fall under 7305.31, with different duty rates.
If imported as gas compressor component
End-use as machinery part (e.g., turbocharger housing) moves to Chapter 84.
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
• Include NACE MR0175 certification for sour gas service to confirm pipeline end-use and alloy suitability
• Document weld seam inspection (e.g
• ultrasonic testing) as proof of construction meeting 7305 line pipe standards
• Avoid bulk packaging that suggests casing use, which could shift to 7304 or 7306
Related Products under HTS 7305.19.50.00
API 5L Grade X65 Alloy Steel Line Pipe
Welded alloy steel tube with circular cross section exceeding 406.4 mm OD, designed specifically for high-pressure oil and gas pipelines per API 5L X65 specifications. Classified under 7305.19.5000 as line pipe of alloy steel for pipeline transport, not other tubes.
16-Inch Alloy Steel Oil Line Pipe
Welded alloy steel pipe with 16-inch (406.4+ mm) external diameter for crude oil gathering lines in refineries. HTS 7305.19.5000 applies to its circular cross-section, large size, welded closure, and alloy steel for oil pipeline applications.
High-Pressure Gas Transmission Alloy Pipe
Welded alloy steel pipe (20-inch OD) engineered for high-pressure natural gas trunklines with enhanced yield strength. Meets 7305.19.5000 as other alloy line pipe with exterior diameter exceeding 406.4 mm.
Corrosion-Resistant Alloy Line Pipe
Large-diameter (18-inch OD) welded pipe of duplex stainless alloy steel for offshore oil/gas flowlines. Classified in 7305.19.5000 as alloy steel line pipe with circular section >406.4mm for pipeline transport.
Sour Service Alloy Steel Line Pipe
Alloy steel welded pipe (24-inch OD) resistant to H2S corrosion for sour gas pipelines. HTS 7305.19.5000 covers its large circular cross-section and alloy composition for oil/gas line pipe use.