TP304 Stainless Steel Welded Pipe 10-inch Sch 40
ASTM A312 TP304 welded stainless pipe, 10-inch (273 mm) OD, Schedule 40 with 6.02 mm wall for general corrosive service. HTS 7306.40.50.90 covers this as other welded stainless circular tube in dimension range. Standard grade for broad industrial use.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter 114.3 mm or less
Smaller OD welded stainless tubes under 4.5 inches classify separately in 7306.40.30.
If seamless cold-drawn
Cold-drawn seamless stainless tubes shift to 7304.29, process/material combo changes heading.
If imported as parts for chemical processing machinery
Principal use for specific Chapter 84 machinery supersedes Chapter 73 material classification.
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Import Tips & Compliance
• ASTM A312 marking mandatory; specify TP304 grade and welded vs EFW (electric fusion welded) process
• Measure OD precisely—273.1 mm max for 10-inch nominal to stay in 7306.40.50 range
• Bulk shipments need proper strapping/packaging declaration to avoid 'set' misclassification
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