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Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: > Other, welded, of circular cross section, of other alloy steel: > Having a wall thickness of 1.65 mm or more: > Other

Duty Rate (from China)

35%
MFN Base RateFree
9903.03.01+10%

Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

9903.91.01+25%

Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter

Total Effective Rate35%

Subheadings

7306.50.50.10Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold-drawn
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7306.50.50.30Other, cold-drawn or cold-rolled (cold- reduced)
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7306.50.50.50With an outside diameter not exceeding 114.3 mm
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7306.50.50.70With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm
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Products classified under HTS 7306.50.50

Welded Alloy Steel Pressure Pipe 2-inch Schedule 40

This is a welded circular tube of alloy steel with a 2-inch diameter and wall thickness exceeding 1.65 mm, designed for high-pressure fluid transmission in industrial applications. It falls under HTS 7306.50.50 as it is welded, of circular cross-section, made from alloy steel, and has a wall thickness of 1.65 mm or more, categorized as 'other'. Commonly used in oil and gas pipelines or hydraulic systems.

Alloy Steel Structural Hollow Section 4x4 inch

A welded square hollow profile of alloy steel, standardized as 4x4 inches with wall thickness over 1.65 mm, used in construction frameworks and machinery supports. Classified under HTS 7306.50.50 due to its welded construction, alloy steel material, and 'other' status excluding specific exclusions, despite square shape fitting 'hollow profiles'.

Welded Alloy Steel Boiler Tube ASTM A213

High-temperature resistant welded tube of alloy steel per ASTM A213, circular cross-section with wall thickness ≥1.65 mm, for boiler and superheater service. HTS 7306.50.50 applies as 'other' welded circular tubes of alloy steel, thick-walled, not fitting line pipe or casing specifics.

Hydraulic Cylinder Barrel Alloy Steel Tube

Precision welded circular tube of alloy steel for hydraulic cylinder barrels, wall thickness over 1.65 mm, with smooth internal bore for piston operation. Under HTS 7306.50.50 as welded, thick-walled alloy steel tube, 'other' category for industrial fluid power applications.

Alloy Steel Exhaust Tubing 3-inch OD

Welded circular tubing of heat-resistant alloy steel, 3-inch outer diameter, wall ≥1.65 mm, for automotive and industrial exhaust systems. Classified in HTS 7306.50.50 as 'other' welded thick-walled alloy steel tubes, suitable for high-temperature gas conveyance.

Welded Alloy Steel Fence Tubing 2-inch

Galvanized welded alloy steel tubing, 2-inch diameter, thick wall >1.65 mm, for durable fencing and railing posts in corrosive environments. HTS 7306.50.50 covers this as other welded circular alloy steel tubes, excluding line pipe applications.

Heavy Duty Alloy Steel Scaffolding Tube

Welded thick-walled (≥1.65 mm) alloy steel tube, circular 2-inch nominal, engineered for scaffolding and shoring systems with high load capacity. Fits HTS 7306.50.50 as other welded alloy steel circular tubes for construction support.

Alloy Steel Heat Exchanger Tubing

Welded circular tubes of corrosion-resistant alloy steel, wall thickness 1.8 mm, for shell-and-tube heat exchangers in chemical processing. HTS 7306.50.50 as other thick-walled welded alloy tubes.

Welded Chromoly Steel Bike Frame Tube

4130 chromoly alloy steel welded tube, circular 1.5-inch OD, 0.120-inch wall (>1.65 mm converted), for high-end bicycle frames. Under HTS 7306.50.50 as other welded thick alloy steel tubes.

Industrial Vacuum Tube Alloy Steel 6-inch

Large diameter welded alloy steel tube, 6-inch OD, thick wall ≥1.65 mm, for vacuum chamber construction and material handling. HTS 7306.50.50 for other welded circular alloy tubes.

Alloy Steel Guardrail Post Tube

Welded heavy gauge alloy steel tube for highway guardrail posts, circular 2.25-inch, wall 0.165-inch (>1.65 mm metric), crash-tested. Classified HTS 7306.50.50 as other thick welded alloy tubes.

Condenser Tube Alloy Steel Welded

Welded alloy steel tubes for surface condensers in power plants, 1-inch OD, 0.083-inch wall (equiv >1.65 mm adjusted), enhanced admiralty equivalent. HTS 7306.50.50 other category.

Alloy Steel Roll Cage Tubing 1.75-inch

DOM-equivalent welded 4130 alloy tubing, 1.75-inch x 0.120 wall for off-road vehicle roll cages, NHRA certified. HTS 7306.50.50 welded thick alloy circular.

Fire Sprinkler Alloy Steel Pipe

Schedule 40 welded alloy steel pipe, 1-inch nominal, thick wall, for commercial fire sprinkler systems, UL listed. HTS 7306.50.50 other welded alloy.

Instrument Air Line Alloy Tubing

Precision welded alloy steel tubing, 0.75-inch OD, 0.109 wall (>1.65 mm), for clean instrument air service in refineries. HTS 7306.50.50 category.

HTS 7306.50.50 — Other | Import Tariff & Duty Rate