9-5/8 inch Stainless Steel Oil Well Casing
Seamless stainless steel casing pipe with 9.625 inch outside diameter and wall thickness of 10 mm, designed for oil and gas drilling to line and stabilize wellbores. Classified under HTS 7304.24.4050 due to its seamless construction, stainless steel material, casing use in drilling, OD between 285.8-406.4 mm, and wall thickness under 12.7 mm.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of iron or non-alloy steel
Same dimensions and use but different base metal moves it from stainless steel (7304.24) to other steel (7304.41).
If welded rather than seamless
Welded stainless steel pipes for drilling classify under Chapter 73 heading 7306, not seamless 7304.
If wall thickness 12.7 mm or greater
Thicker wall casing stays in 7304.24 but moves to different statistical suffix from the <12.7 mm subheading.
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Import Tips & Compliance
• Verify seamless construction via mill test certificates; welded pipes classify under 7304.41+
• Confirm API 5CT certification for oilfield casing to meet industry standards and avoid reclassification
• Document outside diameter precisely (11.25-16 inches) and wall thickness to ensure subheading compliance
Related Products under HTS 7304.24.40.50
10-3/4 inch L-80 Stainless Casing
Seamless Type 304 stainless steel L-80 grade casing with 10.75 inch OD and 11.5 mm wall thickness for high-pressure oil/gas wells. Falls under HTS 7304.24.4050 as drill casing of stainless steel with specified OD range and thin wall under 12.7 mm.
13-3/8 inch 13Cr Stainless Casing
Seamless 13% chromium stainless steel casing pipe, 13.375 inch OD, 10.92 mm wall thickness, corrosion-resistant for sour gas wells. HTS 7304.24.4050 applies to its seamless stainless steel construction for oil/gas drilling within the specified size parameters.
11-3/4 inch Duplex Stainless Casing
Seamless duplex 2205 stainless steel oil well casing, 11.75 inch OD, 9.8 mm wall, high strength for deepwater applications. Meets HTS 7304.24.4050 criteria for stainless steel seamless drill casing with OD 285.8-406.4 mm and thin walls.
12-1/4 inch Super Duplex Casing
Seamless super duplex 2507 stainless casing with 12.25 inch OD and 11.2 mm wall thickness for extreme corrosion environments in oil/gas drilling. Classified in HTS 7304.24.4050 for stainless steel seamless casing within size limits.
14 inch 316L Stainless Casing
Seamless 316L stainless steel casing pipe, 14 inch OD, 10.5 mm wall thickness, for corrosive offshore oil well applications. HTS 7304.24.4050 covers this stainless steel drill casing size and specification.
15-1/2 inch Stainless Drill Casing
Seamless stainless steel drill casing 15.5 inch OD, 11.9 mm wall thickness for large diameter oil/gas wells. Perfect fit for HTS 7304.24.4050 as stainless seamless casing under 16 inch OD limit.