244.5 mm 43# 13% Cr Stainless Oil Well Casing
Seamless 13% chromium stainless steel casing pipe, 244.5 mm OD, 43 lb/ft nominal weight, coupled threaded ends, 11.99 mm wall thickness. Corrosion-resistant for sour gas service. HTS 7304.24.30.30 applies to its stainless composition, seamless form, and dimensional specs.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of carbon steel
Carbon steel casing with identical dimensions uses 7304.23 subheading.
If threaded but not coupled, or sold individually
Tube/pipe fittings or uncoupled threaded lengths may fall under Chapter 73 heading 7307.
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
• Obtain NACE MR0175/ISO 15156 certification for sour service casings to meet import standards
• Use ISPM 15 compliant wooden cradles for shipping to avoid fumigation issues
• Confirm 'threaded or coupled' status—uncoupled pipe may classify differently under 7304.24.10
Related Products under HTS 7304.24.30.30
9-5/8 inch 40# P110 Stainless Steel Oilfield Casing
Seamless stainless steel casing pipe with 9-5/8 inch (244.5 mm) outside diameter, 40 lb/ft weight, P110 grade, threaded and coupled ends, and wall thickness of 10.54 mm. Used in oil and gas drilling to line and stabilize wellbores. Falls under HTS 7304.24.30.30 due to its seamless construction, stainless steel material, specified OD range, and wall thickness under 12.7 mm.
10-3/4 inch 40.5# L80 Type 13CR Stainless Casing
Seamless 13CR stainless steel casing, 10-3/4 inch (273 mm) OD, 40.5 lb/ft, L80 grade, premium threaded and coupled connections, 11.1 mm wall thickness. Designed for corrosive oil/gas environments. Classified under HTS 7304.24.30.30 for stainless steel seamless casing in the 215.9-285.8 mm OD range with thin walls.
8-5/8 inch 32# Q125 Stainless Steel Drill Casing
High-strength seamless stainless steel casing, 8-5/8 inch (219 mm) OD, 32 lb/ft, Q125 grade, integral threaded joints, 11.15 mm wall. Applied in high-pressure oil/gas wells. Meets HTS 7304.24.30.30 criteria for stainless oilfield casing with OD ≥215.9 mm and wall <12.7 mm.
273 mm OD 48# L80-13CR Coupled Casing
Seamless L80-13CR stainless steel casing, 273 mm (10-3/4") OD, 48 lb/ft, 12.1 mm wall thickness, premium EUE threaded couplings. For deepwater oil/gas production. Fits HTS 7304.24.30.30: stainless, seamless, oilfield casing, correct OD and thin wall.
9-5/8 inch 36# T95 Stainless Steel Surface Casing
T95 grade seamless stainless casing, 9-5/8" (244.5 mm) OD, 36 lb/ft, 9.72 mm wall, BTC threaded and coupled. Used as surface conductor in oil wells. HTS 7304.24.30.30 due to stainless steel, seamless oilfield casing specs.