6-5/8 Inch 27 ppf P-110 Casing
High-strength P-110 grade seamless casing, 6-5/8 inch OD, 27 lb/ft, wall thickness ≥12.7 mm for deep oil wells. Withstands extreme pressures in drilling operations. HTS 7304.29.20.20: seamless iron/nonalloy, <215.9 mm OD.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If wall thickness <12.7 mm
Thickness breakpoint determines specific casing subheading.
If classified as drill tubing
Drilling tubing has separate specs from protective casing.
If for line pipe applications
Transport pipeline use vs drilling casing changes heading.
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 minimum yield strength documentation (110 ksi) for grade verification
• Avoid co-mingling with thinner wall stock to prevent sampling errors at entry
• Declare surface condition (bare, varnished) accurately for any coating-related issues
Related Products under HTS 7304.29.20.20
9-5/8 Inch 43 ppf L-80 Casing
Seamless steel oil well casing pipe with 9-5/8 inch outside diameter, 43 pounds per foot weight, and L-80 grade, featuring a wall thickness exceeding 12.7 mm. Designed for oil and gas drilling to line the borehole and protect against collapse. Classified under HTS 7304.29.20.20 due to its seamless construction, nonalloy steel material, small diameter under 215.9 mm, and thick walls.
7 Inch 32 ppf K-55 Casing
Heavy-duty seamless K-55 grade casing with 7-inch OD, 32 lb/ft, and wall thickness over 12.7 mm for high-pressure oil wells. Used to stabilize wellbores during drilling for oil or gas extraction. Fits HTS 7304.29.20.20 as iron/nonalloy steel, seamless, <215.9 mm OD, thick-walled.
8-5/8 Inch 40 ppf J-55 Casing
J-55 grade seamless nonalloy steel casing, 8-5/8 inch diameter, 40 lb/ft, with wall thickness ≥12.7 mm for intermediate oil well sections. Essential for preventing contamination and structural support in drilling. Matches HTS 7304.29.20.20 criteria perfectly.
4-1/2 Inch 12.6 ppf N-80 Casing
N-80 type 1 seamless casing for slimhole drilling, 4-1/2 inch OD, 12.6 lb/ft, wall thickness 12.7 mm or greater. Provides corrosion resistance in sour gas environments. HTS 7304.29.20.20 due to seamless nonalloy steel, small OD, thick wall specs.
5-1/2 Inch 20 ppf L-80 Type 9Cr Casing
L-80 9Cr seamless casing for corrosive environments, 5-1/2 inch OD, 20 lb/ft, wall >12.7 mm. Chromium-enhanced for oil/gas well integrity. Still nonalloy per HTS, classifies under 7304.29.20.20.
10-3/4 Inch 54.5 ppf Heavy Casing
Extra heavy 10-3/4 inch OD, 54.5 lb/ft L-80 casing with wall thickness exceeding 12.7 mm for surface hole protection in oil drilling. Seamless nonalloy steel construction. Qualifies under HTS 7304.29.20.20 small diameter thick wall provisions.