5 inch K55 BTC Casing
K55 grade seamless alloy steel casing with 5 inch OD, Buttress Thread Coupling (BTC), wall <12.7 mm for intermediate casing strings in conventional vertical wells. Provides good compression resistance. HTS 7304.29.31.10 threaded alloy steel oilfield casing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other seamless steel tubes
If not specifically declared for drilling, may classify as general tubing.
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Import Tips & Compliance
• BTC couplings require coupling stock material certificates
• K55 suitable for non-corrosive environments—declare service conditions
• Verify seamless vs. welded status on all documentation
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