12-1/4 inch 61 lb/ft N-80 Type 316L Tubing
Type 316L stainless steel seamless tubing, 12-1/4 inch (311.2 mm) OD, N-80 grade for liner applications in horizontal oil drilling. Precisely fits HTS 7304.24.60.60 criteria for stainless seamless oil/gas tubing 215.9-406.4 mm OD. Molybdenum-enhanced for chloride resistance.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If having OD exceeding 406.4 mm
Larger diameter stainless oilfield tubing uses the next OD statistical breakout.
If general mechanical tubing not for drilling
Stainless hollow bars/tubes without oilfield specification fall under Chapter 72 semifinished products.
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Import Tips & Compliance
• 316L-specific heat treatment records mandatory; austenitic structure must be verified
• Prevent reclassification as line pipe (7304.90) by including drilling-specific thread profiles
• Use HTSUS advisory rulings for novel grades to confirm 7304.24.60.60 applicability
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