7 Inch OD Duplex Stainless Steel Production Tubing
High-strength duplex stainless steel seamless tubing with 7-inch (177.8 mm) outside diameter for production tubing strings in oil and gas wells. It meets HTS 7304.24.60.45 criteria as stainless steel, seamless, within the 114.3-215.9 mm OD range, and designated for drilling-related downhole use.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If longitudinally submerged arc welded (LSAW)
Welded construction, even for similar oilfield use, moves to 7305 for other welded pipes.
If outside the drilling oil/gas end-use
General mechanical seamless stainless tubes (not drilling-specific) fall under 7304.59.
If for retail sale as structural components
Other welded stainless pipes sold individually for construction shift to 7306.40 retail provisions.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Obtain NACE MR0175 certification for sour service resistance, required for many oilfield imports
• Measure wall thickness separately, as it doesn't affect OD classification but impacts strength declarations
Related Products under HTS 7304.24.60.45
4.5 Inch OD Stainless Steel Oilfield Tubing
Seamless stainless steel tubing with an outside diameter of 4.5 inches (114.3 mm), designed specifically for use as casing and tubing in oil and gas drilling operations. This product falls under HTS 7304.24.60.45 due to its seamless construction, stainless steel material, and size range exceeding 114.3 mm but less than 215.9 mm, tailored for downhole applications in harsh environments.
4.75 Inch OD Super Duplex Oil Well Tubing
Seamless super duplex stainless steel tubing at 4.75 inches (120.65 mm) OD, engineered for high-pressure, high-temperature oil wells. This product is classified in HTS 7304.24.60.45 for its seamless stainless steel makeup and diameter specs suited to oil/gas drilling tubing applications.
5 Inch OD 13Cr Stainless Steel Drill Tubing
Seamless 13Cr (13% chromium) stainless steel tubing measuring 5 inches (127 mm) outside diameter, optimized for corrosive oil and gas well environments. Classified under HTS 7304.24.60.45 for its stainless steel seamless construction and specified diameter range used in drilling operations.
6.625 Inch OD 316L Stainless Casing Tubing
Seamless 316L stainless steel tubing with 6.625-inch (168.275 mm) outside diameter for intermediate casing in oil and gas drilling. Fits HTS 7304.24.60.45 as stainless, seamless drill tubing in the designated size range for petroleum exploration.