4-1/2 Inch Intermediate Casing Coupled
Slim 4-1/2 inch intermediate casing, J55 grade with flush threaded couplings for mid-depth oil well support. Nonalloy welded steel. Classified in 7306.29.10 for threaded drilling casing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If uncoupled flush joint
Without couplings, it falls under plain end casing in 7306.19.10.
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Import Tips & Compliance
• Small diameters often bundled; declare exact lengths to match invoice weights accurately
• Include collapse and burst test data from MTC for high-pressure claims
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