9-5/8 Inch 36# L80 Type 9Cr Casing
L80 Type 9Cr seamless casing pipe, 9-5/8" OD, 36 lb/ft, 9.8 mm wall, BTC connections, technically nonalloy per HTS definition for oil well intermediate strings. Fits 7304.29.10.50 despite Cr content under alloy thresholds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If exceeds nonalloy steel limits
Higher alloy content (9Cr) properly classifies under alloy steel 7304.39.
If for line pipe service
Same dimensions but transport function goes to 7306.50 line pipe.
If different OD range 114.3-285.8 mm
Smaller diameter casing falls in separate OD breakout 7304.29.11.
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Import Tips & Compliance
• Chemical analysis certificates critical to prove nonalloy status despite Cr addition
• Confirm wall thickness with independent inspection to stay under 12.7mm threshold
• Use protective caps on threads; damaged ends can void classification
Related Products under HTS 7304.29.10.50
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13-5/8 Inch 48# L80 Production Casing
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