Welded Carbon Steel Gas Transmission Pipe
Helical seam submerged arc welded pipe of nonalloy steel for natural gas transmission lines, with OD 24-48 inches. Designed for high-pressure long-distance transport. Falls under 7305.19.10 due to its large circular cross-section and specific use in gas pipelines.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If spiral welded with specific tolerances
Helical seam pipes sometimes fall under 7304 if not qualifying as 'other' under 7305.
If imported assembled into gas turbine components
End-use as machinery parts changes classification from tubes/pipes.
If of iron (cast iron) rather than wrought steel
Cast iron variants for low-pressure lines use different material heading.
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Import Tips & Compliance
• Include purchase order or contract specifying pipeline end-use to support line pipe classification
• Check wall thickness tolerances per ASTM A53/A106 standards for quality compliance
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