7 inch 32 lb/ft 13Cr Stainless Steel Production Casing
Seamless 7-inch 13Cr stainless steel casing at 32 lb/ft, designed for production sections in corrosive oil/gas reservoirs. HTS 7304.24.40 covers this as other stainless steel casing for drilling operations. The 13Cr alloy provides superior resistance to CO2 and H2S.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If longitudinally welded construction
Welded stainless steel line pipe or casing goes to welded pipes heading.
If specifically for drill pipe applications
Drill pipe has tool joints for rotation, unlike plain-end casing.
If threaded and coupled for structural use outside drilling
Pipe fittings or mechanical tubing with specific connections may classify differently.
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Import Tips & Compliance
• Label pipes clearly with manufacturer, grade, and API monogram to facilitate smooth customs clearance
• Avoid bundling with tubing in same shipment without separate invoices to prevent classification disputes
• Confirm chrome content via chemical analysis certs, as borderline stainless may be reclassified
Related Products under HTS 7304.24.40
13-3/8 inch 54.5 lb/ft L-80 Type 13Cr Stainless Steel Casing
This is a seamless stainless steel casing pipe with 13-3/8 inch outer diameter and 54.5 lb/ft weight, made from L-80 Type 13Cr material for corrosion resistance in sour gas environments. It falls under HTS 7304.24.40 as other stainless steel casing used in oil and gas drilling, distinct from tubing or drill pipe. The seamless construction and specific dimensions suit intermediate casing strings in deviated wells.
9-5/8 inch 43.5 lb/ft P110 Stainless Steel Casing
Seamless 9-5/8 inch OD stainless steel casing rated P110 for high-pressure production zones in oil and gas wells. Classified under HTS 7304.24.40 as other stainless steel casing, not drill pipe or tubing, used to isolate formations. Its corrosion-resistant properties suit harsh offshore environments.
20 inch 94 lb/ft Q125 Stainless Steel Conductor Casing
Heavy-duty 20-inch seamless stainless steel conductor casing, Q125 grade, 94 lb/ft for structural support in shallow well sections. Falls under HTS 7304.24.40 as other stainless steel casing for oil/gas drilling. Used to prevent borehole collapse during initial drilling.
4-1/2 inch 12.6 lb/ft L80-13Cr Tie-Back Casing
Slim 4-1/2 inch seamless stainless steel L80-13Cr casing for tie-back extensions in subsea completions. HTS 7304.24.40 applies to this other stainless steel casing used in oil/gas drilling. Essential for connecting subsea wells to surface platforms.