HS Code for Large diameter welded pipe
The classification of large diameter welded pipes under HS code 7305.12 is determined by a combination of material, use, and specific manufacturing dimensions. According to the General Rules of Interpretation (GRI), specifically GRI 1 and 6, products are classified based on the terms of the headings and any relative section or chapter notes. Heading 7305 is reserved for pipes and tubes of iron or steel with an external diameter exceeding 406.4 mm. This specific subheading, 7305.12, is further refined to include line pipe used for oil or gas pipelines that are longitudinally welded. Crucially, this code excludes pipes manufactured using submerged arc welding, which are instead classified under 7305.11. The pipes must have a circular cross-section and be made of iron or non-alloy steel or alloy steel, but not cast iron. The 406.4 mm (16-inch) threshold is the primary differentiator between heading 7305 and heading 7306, the latter of which covers welded pipes of smaller diameters. These pipes are typically used in the construction of long-distance transmission lines for hydrocarbons, where the structural integrity of the longitudinal weld is paramount for safety and pressure containment.
Products Included
- Longitudinally welded steel line pipes for oil and gas
- Electric resistance welded (ERW) pipes with diameter >406.4mm
- High-frequency induction welded pipes for energy infrastructure
- Circular cross-section welded steel tubes for pipelines
Common Misclassification
This code is often confused with 7305.11, which covers pipes of the same diameter but manufactured using longitudinal submerged arc welding (LSAW). It is also frequently confused with 7304, which is strictly for seamless pipes, or 7306, which covers welded pipes with an external diameter of 406.4 mm or less. Misidentifying the welding method is the most common cause of error.
FAQ
What is the HS code for large diameter welded pipe?
The HS code for large diameter longitudinally welded line pipe (not submerged arc) is 7305.12.
What is the difference between 7305.11 and 7305.12?
The primary difference lies in the welding technique; 7305.11 is for submerged arc welding, while 7305.12 covers other longitudinal welding methods like ERW.
Industry
Frequently Asked Questions
What is the HS code for Large diameter welded pipe?
The HS code for Large diameter welded pipe is 730512 (Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), longitudinally welded (not submerged arc welded), having circular cross-sections, external diameter exceeds 406.4mm).
How do I classify Large diameter welded pipe for customs?
Large diameter welded pipe is classified under HS code 730512 — Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), longitudinally welded (not submerged arc welded), having circular cross-sections, external diameter exceeds 406.4mm. This is a 6-digit subheading level code.
Is the HS code for Large diameter welded pipe the same in all countries?
The base HS code 730512 for Large diameter welded pipe is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.