Alloy Steel Welded Pipe 3 Inch OD Schedule 40
A welded pipe of other alloy steel (e.g., 4130 chrome-moly) with 76.2 mm (3 inch) OD, 3.91 mm wall thickness, and circular cross section. Classified under HTS 7306.50.5050 for welded alloy steel tubes/pipes with wall ≥1.65 mm and OD ≤114.3 mm. Used in high-pressure hydraulic systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel alloy
Stainless variants go to 7306.40; non-stainless alloys stay in 7306.50.
If wall thickness under 1.65 mm
Thinner walls shift to 7306.50.5030 subheading.
If imported as parts of pumps or compressors
End-use as machinery parts may reclassify under Chapter 84 functional headings.
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Import Tips & Compliance
• Provide chemical analysis reports proving 'other alloy steel' status (not stainless)
• Measure and certify exact OD and wall thickness; tolerances must comply with subheading specs
• Avoid classifying as line pipe (7304 or 7306.19) if not certified for oil/gas transport
Related Products under HTS 7306.50.50.50
Incoloy 800 Welded Pressure Tube 100 mm OD
Welded Incoloy 800 (UNS N08800) alloy steel tube for high-temperature service, 100 mm OD, 2.5 mm wall thickness. Fits HTS 7306.50.5050 as other alloy steel, welded, circular, thick-walled, ≤114.3 mm OD. Applied in heat exchangers.
AL-6XN Welded Alloy Tube 2 Inch OD
Super-austenitic AL-6XN alloy steel welded tube, 50.8 mm (2 inch) OD, 2.1 mm wall thickness, circular cross section. Classifies in HTS 7306.50.5050 as other alloy (non-stainless) welded tube with required specs. For severe corrosive environments.
17-4 PH Precipitation Hardening Tube 90 mm OD
Welded 17-4 PH (UNS S17400) precipitation hardening alloy steel tube, 90 mm OD, 3.0 mm wall. HTS 7306.50.5050 covers such welded circular alloy steel tubes ≤114.3 mm OD, ≥1.65 mm wall. Aerospace structural component.
Hastelloy C-276 Welded Tubing 110 mm OD
Welded Hastelloy C-276 (high nickel-chrome-moly) alloy tube, 110 mm OD, 2.8 mm wall thickness. Borderline classification in HTS 7306.50.5050 as other alloy steel welded tube meeting size criteria, though nickel content high.
Custom 8630 Alloy Welded Pipe 50 mm OD
Welded 8630 low-alloy steel pipe, 50 mm OD, 4.5 mm wall, for mechanical engineering. HTS 7306.50.5050 for welded other alloy steel circular tubes/pipes with wall ≥1.65 mm, OD ≤114.3 mm.
Welded 316L Stainless Steel Tube 1.5 Inch OD
This is a welded tube made from 316L alloy steel with a circular cross section, outside diameter of 38.1 mm (1.5 inches), and wall thickness of 2.0 mm. It falls under HTS 7306.50.5050 due to its welded construction, alloy steel material, wall thickness over 1.65 mm, and OD not exceeding 114.3 mm. Commonly used in chemical processing equipment.