Stainless Steel Friction Weld Drill Pipe 4 Inch Sour Service
4-inch OD stainless steel drill pipe with friction-welded tool joints, designed for sour service (H2S) environments in natural gas drilling. Seamless body provides corrosion resistance and strength for directional drilling. HTS 7304.22.00 covers this as stainless steel drill pipe for oil/gas applications.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for casing/tubing rather than drill pipe
Distinction based on end use in well; casing has different wall specs.
If drill pipe of iron or non-alloy steel
Base steel composition determines stainless vs other steel subheading.
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
• Document friction welding process and joint efficiency to validate as drill pipe
• Use correct country-of-melt documentation for stainless origin tracing
Related Products under HTS 7304.22.00
13Cr Stainless Steel Drill Pipe 4-1/2 Inch OD
Seamless 13% chromium (13Cr) stainless steel drill pipe, 4-1/2 inches outer diameter, used in corrosive environments like sour gas wells. Equipped with premium connections for high-pressure drilling, it provides superior corrosion resistance over carbon steel. Falls under HTS 7304.22.00 due to its seamless construction and specific design as drill pipe for oil/gas drilling.
Super Duplex Drill Pipe 5-7/8 Inch High Pressure
Super duplex stainless steel drill pipe (e.g., SAF 2507), 5-7/8 inch OD, for ultra-high pressure and H2S-resistant drilling in harsh oilfields. Seamless construction with integral upset ends for enhanced joint integrity. Classified in 7304.22.00 for stainless steel seamless drill pipe used in oil/gas drilling.
Martensitic Stainless Drill Pipe 3-1/2 Inch Slim Hole
Martensitic stainless steel (e.g., 410/420 grade) drill pipe, 3-1/2 inch OD for slim hole drilling in oil exploration. Seamless with high hardness for abrasive formations. Under 7304.22.00 as stainless steel seamless drill pipe for oil/gas.
Austenitic Stainless Steel Drill Pipe 7 Inch Extended Reach
Austenitic stainless steel drill pipe (e.g., 316L), 7 inch OD for extended reach horizontal drilling in shale oil plays. Seamless with low cycle fatigue design. 7304.22.00 for stainless drill pipe.
Ph13-8Mo Stainless Precipitation Hardening Drill Pipe 5 Inch
PH13-8Mo precipitation hardening stainless steel drill pipe, 5 inch, for high-strength deep drilling. Seamless, heat-treatable alloy. HTS 7304.22.00.
Inconel 718 Alloy Drill Pipe Equivalent Stainless 4-3/4 Inch
Inconel 718 (nickel-based but stainless-like) drill pipe 4-3/4 inch for HPHT wells. Seamless. 7304.22.00 if deemed stainless.