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API 5CT N80 Oilfield Tubing

Seamless tubing made from nonalloy steel, grade N80, designed specifically for oil and gas well casing and production applications. It meets API 5CT specifications for use in drilling operations to line boreholes and support well integrity. Classified under 7304.29.50 as seamless tubing of nonalloy steel for oil or gas drilling.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

More Specific Codes

This product may fall under a more specific subheading:

7304.29.50.15Having a wall thickness not exceeding 9.5 mm
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7304.29.50.30Having a wall thickness exceeding 9.5 mm
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7304.29.50.45Having an outside diameter exceeding 114.3 mm but less than 215.9 mm
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7304.29.50.60Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm
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7304.29.50.75Having an outside diameter exceeding 406.4 mm
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Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7306.19.10Same rate: 35%

If used for structural or conveyance piping rather than drilling

General seamless pipes of nonalloy steel fall under 7306 if not specifically for oil/gas casing or tubing.

7304.39.00Same rate: 35%

If made of stainless steel

Stainless steel variants shift to 7304.39 due to alloy composition exceeding nonalloy limits.

8431.43.80Same rate: 35%

If imported as part of a complete drilling rig assembly

Parts and accessories of drilling machines are classified under 8431 when not sold as standalone tubing.

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Import Tips & Compliance

• Verify API 5CT certification and material test reports (MTRs) to confirm nonalloy steel composition and seamless construction

• Ensure end-user declaration specifies oil/gas drilling use to avoid reclassification as general pipe

Related Products under HTS 7304.29.50

J55 Casing Tubing for Gas Wells

Seamless J55 grade nonalloy steel tubing used as casing in natural gas drilling operations to prevent borehole collapse. Conforms to API standards for high-pressure well environments. Falls under HTS 7304.29.50 for iron/nonalloy steel seamless tubing in oil/gas drilling.

2-3/8 Inch EUE Tubing for Oil Production

External-upset-end (EUE) 2-3/8 inch seamless nonalloy steel tubing for oil production in rod-pumped wells. Features API 8-round threads for reliable connections in drilling completions. Classified in 7304.29.50 as iron/nonalloy drill tubing.

7 Inch K55 Production Tubing

Seamless 7-inch K55 nonalloy steel production tubing used in oil wells post-drilling for fluid extraction. API-spec threaded ends ensure leak-proof performance. Falls under 7304.29.50 as drill tubing of iron or nonalloy steel.

3-1/2 Inch N80Q Quasi-Premium Tubing

3-1/2 inch N80Q quasi-premium tubing, seamless nonalloy steel with enhanced collapse resistance for sour gas drilling. Features special heat treatment per API 5CT. Classified under HTS 7304.29.50 for nonalloy drill tubing.

2-7/8 Inch 6.5 lb/ft Tubing

Lightweight 2-7/8 inch, 6.5 lb/ft seamless nonalloy steel tubing for marginal oil wells and coalbed methane drilling. Standard API connections for easy field makeup. Under 7304.29.50 for drill tubing.

API Spec 5CT C75 Tubing

C75 grade seamless nonalloy steel tubing per API 5CT for controlled yield oil/gas wells. Balances strength and ductility for drilling completions. HTS 7304.29.50 classification for nonalloy drill tubing.