Of alloy steel
Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: > Other: > Of alloy steel
Duty Rate (from China)
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
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
Products classified under HTS 7306.90.50.00
Welded Alloy Steel Square Hollow Section
ERW welded square hollow structural section (HSS) from alloy steel grades like A500 or A513, used in construction frameworks and machine bases. Fits 7306.90.5000 as other hollow profiles of alloy steel, distinct from circular pipes.
Chrome-Moly P91 Alloy Boiler Tube
High-temperature P91 (9Cr-1Mo) alloy steel tube for supercritical boiler superheaters and reheaters. Classifies in 7306.90.5000 as other alloy steel tubes, excluding line pipe or casing applications.
17-4PH Stainless Alloy Steel Hollow Bar
Precipitation-hardened 17-4PH stainless alloy steel hollow bar, machined from tube for valve bodies and pump shafts. 7306.90.5000 covers this as other alloy steel hollow profiles with wire dimensions under 16mm max.
Alloy Steel Scaffolding Pipe Adapter Tube
Short adapter tubes from high-strength alloy steel connecting standard scaffolding pipes. Classified 7306.90.5000 as other welded alloy steel tubes for construction equipment.
Nitrided Alloy Steel Mandrel Bar Tube
Surface-nitrided 4340 alloy steel hollow mandrel bars used in tube drawing operations. 7306.90.5000 for specialized alloy steel hollow profiles in metalworking.
High-Pressure Alloy Steel Accumulator Shell
Cylindrical shells from 4340 or 300M alloy steel for hydraulic accumulators storing pressurized fluid. 7306.90.5000 applies to these welded or seamless pressure vessels under tube dimensions.
Alloy Steel Heat Exchanger Tubing
U-bent or straight tubes from Alloy 800H/825 for shell-and-tube heat exchangers in chemical processing. Classified 7306.90.5000 as other alloy steel tubes excluding boiler/precision types.
Rolled Alloy Steel Exhaust Tubing
Mandrel-bent tubing from 409/439 ferritic alloy steel for automotive exhaust manifolds. 7306.90.5000 for welded alloy steel tubes in vehicle exhaust systems.
Alloy Steel Gun Barrel Blank Tube
Deep-hole drilled 4140/416R alloy steel blanks for rifle barrel manufacturing. Classifies under 7306.90.5000 as other hollow profiles of alloy steel for firearms.
Alloy Steel Fitness Equipment Frame Tube
DOM or welded 4130 alloy steel tubing for weightlifting racks and gym equipment frames. 7306.90.5000 covers hollow profiles for sporting goods structural use.
Alloy Steel Hydraulic Cylinder Tube
Seamless or welded tube made from alloy steel, precision-honed on the interior for use in hydraulic and pneumatic cylinders. It falls under HTS 7306.90.5000 as other tubes of alloy steel, not specified elsewhere in heading 7306. Typical dimensions include outer diameters from 50-300mm with wall thicknesses up to 10mm.
Alloy Steel Mechanical Tubing 4140 Grade
Cold-drawn or hot-rolled tubing from 4140 chrome-moly alloy steel, used for shafts, axles, and structural components in heavy equipment. Classified under 7306.90.5000 for welded or open-seamed hollow profiles of alloy steel not covered by precision or line pipe headings.
Alloy Steel DOM Tubing for Automotive Roll Cages
Drawn-over-mandrel (DOM) tubing from 4130 alloy steel, round profile for racing car roll cage construction. Under 7306.90.5000 as other welded or seamless tubes of alloy steel for structural reinforcement.
Alloy Steel Furniture Frame Tubing
Welded oval or rectangular tubing from 4130 or 4140 alloy steel for high-end office furniture legs and frames. Falls under 7306.90.5000 for other hollow profiles of alloy steel used in non-structural furniture.
Alloy Steel Bicycle Frame Tube Set
Pre-cut, mitered tube set from 4130 chromoly alloy steel for custom bicycle frame fabrication. Individual tubes classify under 7306.90.5000 as other alloy steel hollow profiles.