18-5/8" Alloy Intermediate Casing
Threaded coupled intermediate casing of alloy steel, 18-5/8" OD for mid-depth oil well protection. HTS 7305.20.60.00 due to welded circular cross-section >16", alloy steel, and drilling-specific threading/coupling. Supports cementing operations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not exclusively for drilling
Welded alloy tubes >406.4mm but other uses fall here.
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Import Tips & Compliance
• Specify drift diameter in docs; ensure coupling torque specs
• Avoid bulk packaging misread as uncoupled
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