4-1/2 Inch P110 Alloy Steel Drill Tubing
High-strength seamless P110 grade alloy steel tubing with 4.5-inch OD for oil well production casing strings. Engineered for extreme tensile strength in deep drilling operations. Falls under HTS 7304.29.61.45 as other alloy steel tubing with OD between 114.3-215.9 mm used in oil/gas drilling.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of carbon steel rather than alloy
Carbon steel tubing (less than 0.2% alloying elements) classified under non-alloy subheadings.
If imported as part of assembled drilling equipment
When supplied as components in complete drilling rigs, moves to Chapter 84 for oilfield machinery parts.
If OD less than 114.3 mm
Smaller diameter tubing falls under the preceding size category in the same alloy steel series.
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Import Tips & Compliance
• Provide detailed dimensional specs and pressure ratings in commercial invoice to confirm OD compliance
• Obtain pre-shipment inspection certificates from approved bodies like Lloyd's Register for customs clearance
• Avoid reclassification by distinguishing from line pipe (7304.19/7306.19) through end-use documentation
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