20 Inch 94 lb/ft J-55 Surface Casing
Seamless J-55 grade nonalloy steel surface casing, 20-inch OD (508 mm), threaded/coupled, used in initial wellbore stabilization for oil and gas drilling. Exceeds 406.4 mm OD requirement. Classified in 7304.29.10.80 for seamless iron/nonalloy steel casing specs.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used for welded line pipe applications
Welded large diameter pipes for conveyance classify under 7306.30 for other welded steel pipes.
If alloy steel surface casing
Higher alloy content for sour service shifts to 7304.39 alloy subheading.
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Import Tips & Compliance
• Provide hydrostatic test reports proving pressure rating compliance for seamless integrity
• Declare exact wall thickness and weight per foot accurately to match statistical suffixes
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