Hollow bars
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of iron or nonalloy steel: > Cold-drawn or cold-rolled (cold-reduced): > Hollow bars
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 7304.31.30.00
Cold-Drawn Seamless Steel Hollow Bar 1020 Grade
A seamless cold-drawn hollow bar made from low-carbon nonalloy steel (SAE 1020), featuring a circular cross-section with an outer diameter of 50mm and wall thickness of 5mm. Classified under HTS 7304.31.30.00 as a cold-rolled hollow profile of nonalloy steel, used primarily as mechanical tubing for structural applications. It lacks threading or fittings, distinguishing it from pipes.
Cold-Rolled Steel Hollow Bar for Automotive Shafts
Precision cold-rolled seamless hollow bar of nonalloy steel, 40mm OD x 4mm wall, designed for manufacturing drive shafts in vehicles. Falls under 7304.31.30.00 as cold-reduced hollow profile of circular cross-section, iron/nonalloy steel, not suitable for pressure piping. Provides high strength-to-weight ratio for mechanical assemblies.
Cold-Drawn Hollow Bar for Axle Housings
Cold-drawn seamless nonalloy steel hollow bar for axle housing tubes, 70mm OD x 7mm wall.
SAE 1018 Cold-Drawn Hollow Steel Bar
Seamless cold-drawn hollow bar in SAE 1018 nonalloy steel, 60mm OD x 6mm wall thickness, used for hydraulic cylinder bodies. HTS 7304.31.30.00 applies to its cold-rolled seamless construction of circular cross-section iron/nonalloy steel. Ideal for precision machining into linear motion components.
Cold-Reduced Seamless Hollow Bar 35mm OD
Cold-reduced seamless hollow bar of nonalloy steel, 35mm outer diameter x 3.5mm wall, for furniture frame tubing. Under HTS 7304.31.30.00 for cold-formed circular hollow profiles of iron/nonalloy steel, valued for its smooth finish and formability.
Nonalloy Steel Hollow Bar for Bicycle Frames
Cold-drawn seamless hollow bar, 25.4mm OD x 2mm wall, nonalloy steel for high-end bicycle frame construction. HTS 7304.31.30.00 covers its cold-rolled seamless circular profile status, offering lightweight strength without welds.
Cold-Rolled Hydraulic Cylinder Tube Stock
Precision cold-rolled seamless hollow bar, 80mm OD x 8mm wall, nonalloy steel for machining hydraulic cylinder barrels. Classified HTS 7304.31.30.00 as cold-reduced hollow profile, essential for heavy equipment manufacturing.
DOM Cold-Drawn Hollow Steel Bar
Drawn-over-mandrel (DOM) cold-drawn seamless hollow bar, nonalloy steel, 45mm OD x 4.5mm wall for shafts. HTS 7304.31.30.00 for cold-formed circular seamless profiles, known for superior concentricity.
Precision Cold-Reduced Steel Hollow Profile
Cold-reduced seamless hollow bar, 30mm OD x 3mm wall, nonalloy steel for robotic arm components. Under 7304.31.30.00 for its cold-rolled iron/nonalloy steel construction.
Cold-Drawn S20C Hollow Bar
JIS S20C nonalloy steel cold-drawn seamless hollow bar, 50mm OD x 5mm wall for general machinery. HTS 7304.31.30.00 applies to cold-formed circular profiles.
Mechanical Hollow Bar Cold-Rolled 1045
Cold-rolled seamless 1045 medium-carbon nonalloy steel hollow bar, 65mm OD x 6.5mm wall for gears/shafts.
Cold-Formed Hollow Steel Bar for Frames
Cold-formed seamless nonalloy steel hollow bar, 38mm OD x 3.8mm for machine frames.
ST37 Cold-Drawn Hollow Bar
DIN ST37 nonalloy steel cold-drawn hollow bar, 55mm OD x 5.5mm for construction machinery.
Cold-Rolled Round Hollow Profile 42mm
42mm OD x 4.2mm cold-rolled seamless nonalloy steel hollow profile for tooling.
Nonalloy Cold-Reduced Hollow Mechanical Bar
General-purpose cold-reduced seamless hollow bar, nonalloy steel, 48mm OD x 4.8mm.