5-inch OD 13Cr Stainless Drill Pipe Sour Service
13Cr martensitic stainless steel drill pipe, 5-inch OD, wall thickness exceeding 9.5 mm, for sour gas drilling environments. Meets HTS 7304.22.0045 as seamless stainless drill pipe ≤168.3 mm OD for oil/gas drilling.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter >168.3 mm but ≤292.1 mm
Medium OD stainless drill pipe has dedicated size-based subheading.
If with elaborate machined couplings
Stainless steel fittings and flanges classify separately.
If parts of liquid pumps used in drilling
Pump parts for drilling mud systems fall under Chapter 84 pumps.
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 NACE MR0175 certification for sour service to support drilling end-use classification
• Declare exact chromium content (>10.5%) to confirm stainless steel per Chapter 73 note
• Separate tool joints in shipment to avoid 'set' classification under 8431
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