42-Inch OD Seamless Alloy Steel Pipe for Oil Drilling
This seamless pipe, made from alloy steel with an outside diameter of 42 inches (1066.8 mm), is designed for high-pressure oil and gas drilling operations. It falls under HTS 7304.59.80.80 due to its seamless construction, circular cross-section, alloy steel material, and OD exceeding 406.4 mm. These pipes withstand extreme downhole conditions without welds that could fail.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of carbon steel rather than alloy steel
Carbon steel seamless pipes of similar size fall under 7304.19, as alloy steel requires minimum specified elements like chromium or nickel.
If imported as parts of oil drilling rigs
Pipes specifically shaped or modified for drilling equipment may classify as machinery parts under Chapter 84 instead of generic tubes.
If welded rather than seamless
Welded alloy steel pipes, even large diameter, shift to Chapter 73 heading 7306, excluding seamless products.
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Import Tips & Compliance
• Verify chemical composition certification to confirm alloy steel status and avoid misclassification as carbon steel under 7304.19
• Obtain mill test reports (MTRs) documenting seamless production process and exact OD measurements exceeding 406.4 mm
• Ensure API 5L or equivalent standards compliance for oilfield pipes to facilitate customs clearance and avoid delays
Related Products under HTS 7304.59.80.80
48-Inch OD Seamless Alloy Steel Line Pipe
A 48-inch (1219.2 mm) OD seamless pipe from alloy steel, used for transporting oil and gas in pipelines. Classified under HTS 7304.59.80.80 for its seamless nature, circular profile, other alloy steel composition, and large diameter over 406.4 mm. Ideal for sour service environments with high corrosion resistance.
60-Inch OD Seamless Alloy Steel Casing Pipe
Heavy-wall seamless alloy steel pipe with 60-inch (1524 mm) OD for well casing in oil extraction. Meets HTS 7304.59.80.80 as a seamless, circular cross-section tube of other alloy steel exceeding 406.4 mm diameter. Provides structural support in boreholes resisting collapse.
36-Inch OD Seamless Alloy Steel Structural Pipe
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24-Inch OD Seamless 9% Chromium Alloy Steel Pipe
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72-Inch OD Seamless Alloy Steel Pile Pipe
Extra-large 72-inch (1828.8 mm) OD seamless alloy steel pipe driven as foundation piles for bridges. HTS 7304.59.80.80 applies to its seamless circular form, alloy composition, exceeding 406.4 mm diameter. Engineered for axial load bearing.
30-Inch OD Seamless Alloy Steel Booster Pipe
30-inch (762 mm) OD seamless pipe from nickel-alloyed steel for water injection boosters in oilfields. Under HTS 7304.59.80.80 for seamless alloy steel tube >406.4 mm OD, circular section. Enhances pressure in secondary recovery.