API 5L Grade B Longitudinal Welded Line Pipe

Large-diameter longitudinally welded steel pipe made from nonalloy steel, meeting API 5L Grade B specifications for use in oil and gas pipelines. Its external diameter exceeds 406.4 mm and circular cross-section make it classifiable under HTS 7305.12.10 as other line pipe of iron or nonalloy steel.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7306.19.10Same rate: 35%

If external diameter ≤406.4 mm

Pipes with smaller diameters fall under heading 7306 for other welded steel tubes.

7304.19.10Same rate: 35%

If seamless construction

Seamless line pipe of nonalloy steel is classified in 7304, not welded pipes in 7305.

7305.11.10Same rate: 35%

If made of alloy steel

Same construction but alloy steel composition shifts to 7305.11 subheading.

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

• Verify API 5L certification and mill test reports (MTRs) to confirm nonalloy steel composition and longitudinal welding

• Ensure external diameter >406.4mm is documented; common pitfall is misclassification as smaller diameter pipes

• Provide end-user statements proving oil/gas pipeline use to avoid reclassification as general tubes

Related Products under HTS 7305.12.10

16-Inch OD Longitudinal Welded Oil Pipeline Pipe

Nonalloy steel pipe with 16-inch (406.4+ mm) external diameter, longitudinally welded for transporting crude oil in pipeline systems. Classified under HTS 7305.12.10 due to its specific use as line pipe and construction characteristics.

18-Inch Longitudinal Welded Crude Oil Pipe

Heavy-wall nonalloy steel pipe, 18-inch external diameter, longitudinally welded using submerged arc process for crude oil gathering lines. HTS 7305.12.10 applies to its line pipe function and construction specs.

API 5L X52 Large Diameter Welded Line Pipe

High-strength X52 grade nonalloy steel pipe with longitudinal weld seam, external diameter 20+ inches for high-pressure gas pipelines. Specifically classifiable under HTS 7305.12.10 for longitudinally welded line pipe.

24-Inch OD Nonalloy Steel Gas Transmission Pipe

Longitudinally submerged arc welded pipe, 24-inch external diameter from nonalloy steel for long-distance natural gas transmission. Meets HTS 7305.12.10 criteria for large diameter welded line pipe.

Longitudinal Welded X46 Pipeline Steel Pipe

X46 grade nonalloy steel large diameter pipe longitudinally welded for offshore oil gathering lines, external diameter exceeding 16 inches. HTS 7305.12.10 classification based on construction and oil/gas pipeline application.

X42 Grade Large Diameter Gas Line Pipe

Longitudinally welded nonalloy steel pipe in X42 grade with external diameter over 16 inches, designed specifically for natural gas transmission pipelines. Falls under HTS 7305.12.10 as other longitudinally welded line pipe of iron or nonalloy steel.