9-5/8 inch 53.5# Q-125 Casing Pipe
Seamless Q-125 high-strength alloy steel casing with 9-5/8 inch OD (244.5 mm), 53.5 lb/ft nominal weight ensuring wall thickness ≥12.7 mm, equipped with premium EUE threaded couplings. Applied in deep high-pressure gas wells for structural support. Matches HTS 7304.29.31.40 precisely for heavy-wall, coupled alloy steel oil/gas casing in the defined size range.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not threaded or coupled
Plain end or welded casings shift to subheadings for non-coupled oilfield tubing.
If for industrial process use outside oil/gas drilling
If marketed for non-drilling applications like chemical processing, it may classify under other seamless steel tubes.
If containing 13% or more chromium (super alloy)
Higher chromium alloys may qualify under specific superalloy provisions.
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
• Submit hydrotest and collapse test results from MTC to prove Q-125 grade compliance; declare exact coupling type (EUE vs STC)
• Avoid classifying based on labeled weight alone—measure actual wall thickness
• Check for special quotas on high-strength alloy imports
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