6-5/8 Inch API Alloy Steel Drill Pipe
Seamless API-grade alloy steel drill pipe measuring 6-5/8 inches (168.275 mm) nominal OD, engineered for high-torque oil and gas drilling with tool joints. HTS 7304.23.60.60 applies to its seamless alloy steel construction and diameter exceeding 168.3 mm for drill pipe use.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel alloy
Stainless steel variants classify under the stainless steel casing/tubing provisions.
If for other threaded uses, not drilling
Non-drilling specific tubes shift to other seamless steel tube headings.
If specialized for sour gas service
Certain alloy drill pipe for corrosive environments has distinct statistical reporting.
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Import Tips & Compliance
• Provide API 5DP monogram certification and chemical composition analysis for alloy verification
• Label shipments clearly as 'drill pipe' vs 'casing' to prevent Customs reclassification
Related Products under HTS 7304.23.60.60
4-1/2 Inch Alloy Steel Drill Pipe
Seamless alloy steel drill pipe with an outside diameter of 114.3 mm (4-1/2 inches), designed for oil and gas drilling operations to transmit drilling fluid and torque to the drill bit. Classified under HTS 7304.23.60.60 due to its seamless construction, alloy steel composition, and diameter exceeding 168.3 mm threshold in the hierarchy for drill pipe used in drilling for oil or gas.
5 Inch Heavy Weight Alloy Drill Pipe
Heavy weight seamless drill pipe made of alloy steel, 5 inches (127 mm) OD but with upset ends exceeding 168.3 mm overall diameter, used in oilfield drilling for added weight and stability. Falls under HTS 7304.23.60.60 as alloy steel drill pipe with qualifying outside diameter for oil/gas applications.
7 Inch High-Strength Alloy Drill Pipe
High-strength seamless alloy steel drill pipe with 7-inch (177.8 mm) OD, featuring premium connections for deepwater oil exploration drilling. Classified in HTS 7304.23.60.60 for alloy steel seamless drill pipe exceeding 168.3 mm diameter used in oil/gas drilling.
8-5/8 Inch Sour Service Drill Pipe
Seamless alloy steel drill pipe rated for sour (H2S) service, 8-5/8 inches (219.1 mm) OD, with enhanced corrosion resistance for harsh oilfield environments. HTS 7304.23.60.60 covers its seamless alloy composition and large diameter for gas drilling applications.
9-5/8 Inch Premium Alloy Drill Pipe
Premium class seamless drill pipe of alloy steel, 9-5/8 inches (244.5 mm) OD, with double shoulder connections for maximum torque in extended reach drilling. Fits HTS 7304.23.60.60 as large-diameter seamless alloy drill pipe for oil/gas operations.
10-3/4 Inch Directional Drilling Pipe
Seamless alloy steel drill pipe optimized for directional and horizontal drilling, 10-3/4 inches (273 mm) OD with high torsional strength. Classified under HTS 7304.23.60.60 for its alloy steel seamless design and diameter exceeding 168.3 mm in oil/gas drilling.