6.625 Inch OD 316L Stainless Casing Tubing
Seamless 316L stainless steel tubing with 6.625-inch (168.275 mm) outside diameter for intermediate casing in oil and gas drilling. Fits HTS 7304.24.60.45 as stainless, seamless drill tubing in the designated size range for petroleum exploration.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used as line pipe for oil/gas transport
Line pipe function (transport post-drilling) separates from drill pipe/casing under 7304.90.
If electric resistance welded (ERW)
ERW stainless pipes, even oilfield-grade, classify under welded headings like 7306.30.
If parts of oil/gas pumps or compressors
Specific machinery parts in Chapter 84 take precedence over general tubing classifications.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include dimensional inspection reports confirming OD tolerance within ±0.5% for customs verification
• Distinguish from line pipe by providing drilling rig end-use affidavits
Related Products under HTS 7304.24.60.45
4.5 Inch OD Stainless Steel Oilfield Tubing
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4.75 Inch OD Super Duplex Oil Well Tubing
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5 Inch OD 13Cr Stainless Steel Drill Tubing
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7 Inch OD Duplex Stainless Steel Production Tubing
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