13-3/8 inch Q125 Alloy Steel Drill Tubing
Seamless Q125 quaternary alloy steel tubing, 339.7 mm ID but 508 mm OD, for high-pressure sour gas wells. Engineered for drilling and completion in harsh environments. Under 7304.29.61.75 for its large OD, seamless alloy steel design for oil/gas operations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered unfinished hollow bars
Lack of oil/gas specific features like upset ends may classify as semi-finished products under Chapter 72.
If imported in coils for on-site straightening
Coiled forms are treated separately from straight lengths in tubing classifications.
If threaded and coupled as finished pipe
Complete threading/coupling makes it 'tube or pipe fittings' rather than raw tubing.
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Import Tips & Compliance
• Include NACE MR0175 certification for sour service alloys to support classification and avoid material disputes
• Use customs valuation based on API grade premiums; underdeclare and risk audits on high-value oilfield goods
• Label with heat numbers and traceability codes per API 5CT to facilitate post-entry verification
Related Products under HTS 7304.29.61.75
API 5CT L-80 Type 9 Alloy Steel Oilfield Tubing
Seamless tubing made from L-80 Type 9 alloy steel, with an outside diameter of 508 mm, designed specifically for oil and gas well casing and production. It meets API 5CT standards for high-strength applications in corrosive environments. Classified under 7304.29.61.75 due to its seamless construction, alloy steel composition, and OD exceeding 406.4 mm for drilling operations.
API 5CT P110 Alloy Steel Casing Tubing 16-inch OD
High-yield P110 grade alloy steel seamless tubing with 406.4 mm OD for deepwater oil well applications. Used as production tubing to withstand extreme pressures during extraction. Fits 7304.29.61.75 as seamless, other alloy steel tubing over 16 inches OD for oil/gas drilling.
20-inch OD T95 Alloy Steel Production Tubing
T95 grade seamless alloy steel tubing with 508 mm OD for liner applications in horizontal drilling. Provides zonal isolation in shale gas production. Classified in 7304.29.61.75 for large-diameter seamless alloy steel used in oil/gas drilling.
API 5CT C110 Alloy Steel Tubing 18-inch
C110 controlled yield strength alloy steel seamless tubing, 457.2 mm OD, for extended reach drilling. Resists sulfide stress cracking in H2S environments. Meets 7304.29.61.75 criteria as other alloy steel, seamless, large OD for gas drilling.
17-inch V150 Alloy Steel Casing for Deep Wells
V150 high-strength seamless alloy steel casing tubing with 431.8 mm OD for ultra-deep oil exploration. Features upset ends for tool joints. 7304.29.61.75 applies to its seamless alloy construction exceeding 406.4 mm OD for drilling.
22-inch OD Proprietary Alloy Drill Tubing
Custom 9Cr-1Mo-V alloy steel seamless tubing, 558.8 mm OD, for high-temperature geothermal drilling. Optimized for erosion resistance. Classified under 7304.29.61.75 for large seamless alloy steel in oil/gas applications.