13-5/8 Inch 13-5/8" L80-13CR Casing
Seamless 13-5/8 inch (346.1 mm) OD L80 13CR alloy casing, 20 mm wall thickness for production zones in corrosive formations. HTS 7304.29.4160: seamless other alloy steel, correct OD range, wall ≥12.7 mm for oil/gas drilling.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel 13CR variant
Higher chromium content may qualify as stainless under 7304.22.
If wall thickness 9.5-12.6 mm
Medium wall thickness range has separate 7304.29.4170 suffix.
If drill pipe rather than casing
Casing stabilizes wells; drill pipe rotates bit - different 8430 classification.
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
• 13CR chemistry certificate required (12.5-14.5% Cr) for proper alloy designation
• Threaded and coupled designation affects value declaration; specify connection type
• CBP targets under-declared alloy content; full PMI test results recommended
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