Super Duplex 2507 Drill Tubing 4-1/2 inch OD
High-alloy Super Duplex 2507 seamless stainless tubing (114.3 mm OD max, wall thickness >9.5 mm) for deepwater gas drilling. Classified in HTS 7304.24.60.30 as stainless steel tubing of a kind used in oil/gas drilling. Engineered for extreme pressure and H2S resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter exceeding 114.3 mm
Larger diameter stainless tubing for drilling moves to adjacent subheading.
If imported with pumpjack assemblies
As integral parts of oil/gas pumps, principal function shifts to Chapter 84.
If cold-drawn precision tubing
If manufactured to tight tolerances for instrumentation in drilling, may classify differently.
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
• Certify PREN value >40 for super duplex to distinguish from standard stainless classifications
• Document end-use as drilling tubing via purchase orders or engineering specs
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