9-5/8 Inch 43.5# L80 Type 316 SS Casing
Welded Type 316 stainless steel casing pipe, 9-5/8 inch diameter, 43.5 lb/ft, L80 grade with integral threaded joints for corrosion-resistant oilfield use. Essential for intermediate casing strings in sour gas wells. HTS 7306.21.30.00 applies to its welded stainless construction and threaded/coupled design for drilling.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not explicitly for drilling use
Welded stainless steel pipes without drilling-specific design fall under general other tubes.
If considered stainless steel bars/hollow profiles
Thinner cross-sections may classify as profiles rather than tubes if not pipe-like.
If fitted with mechanical couplings as tube fittings
Pipes with certain attached fittings shift to Chapter 73 heading 7307.
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
• Label shipments clearly with 'oil/gas drilling casing' to match HTS description and avoid general pipe classification
• Provide chemical composition analysis for stainless steel verification during customs exam
Related Products under HTS 7306.21.30.00
4-1/2 Inch 12.6# J55 SS Liner Casing
Slotted 4-1/2 inch welded stainless steel liner casing, J55 grade, 12.6 lb/ft with threaded hanger/coupling system for extended reach drilling. Used as liner to save casing. HTS 7306.21.30.00 for its welded stainless threaded construction in oil/gas applications.
API 5CT L80 Welded Stainless Steel Casing Pipe
This welded stainless steel casing pipe meets API 5CT L80 specifications for oil and gas drilling operations, featuring threaded ends for secure coupling. It is designed to line the borehole and protect the well from collapse during drilling and production. Classified under HTS 7306.21.30.00 as welded stainless steel casing that is threaded or coupled, specifically for oil/gas drilling.
13-3/8 Inch 72# P110 Stainless Steel Casing
Heavy-duty 13-3/8 inch OD, 72 lb/ft welded stainless steel casing with premium P110 grade and threaded couplings for deep oil well applications. Used to stabilize boreholes in high-pressure environments. Fits HTS 7306.21.30.00 as threaded/coupled welded stainless steel casing for oil/gas drilling.
7 Inch 32# N80 Q125 SS Production Casing
7-inch OD, 32 lb/ft N80 grade quenched and tempered welded stainless steel casing with premium threaded connections for production zones in oil wells. Provides structural support and isolation during extraction. Classified in 7306.21.30.00 for threaded/coupled stainless steel welded casing used in drilling.
20 Inch Conductor Casing 94# SS Welded
Large diameter 20-inch welded stainless steel conductor casing, 94 lb/ft with heavy-duty threaded couplings to initiate offshore oil well drilling through surface formations. Stabilizes the upper well section. Meets HTS 7306.21.30.00 criteria as welded stainless steel threaded/coupled casing for oil/gas.