9-5/8 Inch TP304 Stainless Oil Casing
TP304 seamless stainless steel casing pipe, 244.5 mm OD, 8.66 mm wall thickness, corrosion-resistant for sour oil wells. Fits 7304.24.40.30 as stainless casing for drilling, within OD limits and thin-walled.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter under 215.9 mm
Smaller OD casings (<215.9 mm) use 7304.24.31 subheading, splitting by size within stainless casing.
If welded longitudinal seam
Welded stainless pipes, even for oilfield, classify under 7306.40 based on manufacturing method.
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Import Tips & Compliance
• Certify chemical composition for TP304 grade; include NACE MR0175 for sour service
• Pitfall: Wall thickness gauge variance—submit precise measurements
Related Products under HTS 7304.24.40.30
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API 5CT L80 Stainless Casing 10-3/4 Inch
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