Having an outside diameter less than 38.1 mm
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of iron or nonalloy steel: > Other > Other: > Other: > Having an outside diameter less than 38.1 mm
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 7304.39.00.20
Seamless Carbon Steel Hydraulic Tubing 25mm OD
This seamless tube of nonalloy steel has a 25mm outside diameter and is precision-drawn for high-pressure hydraulic systems in machinery. It falls under HTS 7304.39.0020 as a seamless tube of iron or nonalloy steel with circular cross section and OD less than 38.1mm, not suitable for drilling or threading. Commonly used in industrial fluid power applications.
Nonalloy Steel Boiler Tube 30mm OD
High-temperature seamless carbon steel tube with 30mm OD designed for heat exchangers and boiler applications. Classified under HTS 7304.39.0020 due to its circular cross section, nonalloy steel composition, and OD less than 38.1mm, excluding cast iron and precision tubes. Meets ASTM A179 specifications for cold-drawn seamless tubing.
Cold Drawn Seamless Steel Pneumatic Cylinder Tube 32mm OD
Precision cold-drawn seamless carbon steel tube (32mm OD) with honed interior for pneumatic and hydraulic cylinders. Falls under HTS 7304.39.0020 as other seamless nonalloy steel tubes of circular section <38.1mm OD, distinguished from welded or precision tubes. Surface finish Ra 0.4μm ensures low friction operation.
SAE 1020 Seamless Mechanical Tubing 20mm OD
SAE 1020 carbon steel seamless tubing (20mm OD) for general mechanical fabrication and structural applications. HTS 7304.39.0020 applies to these seamless nonalloy steel tubes with circular cross section under 38.1mm OD, excluding specialized precision or boiler tubes. Yield strength 350 MPa minimum.
Automotive Fuel Line Seamless Steel Tube 15mm OD
Seamless low-carbon steel tube (15mm OD) for automotive fuel delivery systems, resistant to ethanol blends. Classifies in HTS 7304.39.0020 as other seamless tubes of nonalloy steel, circular section <38.1mm OD. Meets SAE J526 specifications for welded/weldless pressure tubing but produced seamless.
Furniture Frame Seamless Steel Tube 16mm OD
Decorative seamless carbon steel tubing (16mm OD) for high-end furniture frames and fitness equipment. Classifies in HTS 7304.39.0020 as other nonalloy seamless tubes under 38.1mm OD, with bright annealed finish. Suitable for polished chrome plating application.
Instrument Air Line Seamless Steel Tubing 12mm OD
High-pressure seamless carbon steel tubing (12mm OD) for instrumentation and control air systems in industrial plants. HTS 7304.39.0020 covers these seamless nonalloy steel tubes under 38.1mm OD with circular section, suitable for brazing connections. 1/2" hard condition for maximum pressure rating.
Shock Absorber Cylinder Seamless Steel Tube 35mm OD
Heavy wall seamless carbon steel tube (35mm OD) for hydraulic shock absorber outer cylinders in automotive suspension. Classifies under HTS 7304.39.0020 as other seamless nonalloy steel tubes <38.1mm OD, with honed ID for piston seal compatibility. Chrome plated ID surface standard.
General Purpose Seamless Steel Tube 28mm OD
Multi-purpose seamless carbon steel tubing (28mm OD) for fabrication shop use, roll cages, and structural components. HTS 7304.39.0020 applies to these versatile nonalloy steel seamless tubes under 38.1mm OD with circular cross section. Available in multiple wall thicknesses.
Heat Exchanger Seamless Tube 22mm OD
Thin wall seamless carbon steel tube (22mm OD, 2mm wall) for shell-and-tube heat exchanger construction. Falls under HTS 7304.39.0020 as other seamless nonalloy steel tubes <38.1mm OD, U-bend capable for exchanger tube bundles. ASTM A179 carbon steel grade standard.
Structural Seamless Steel Tube 18mm OD
Schedule 40 seamless carbon steel pipe sized tube (18mm OD) for structural frameworks and supports. Classifies in HTS 7304.39.0020 as other seamless nonalloy steel tubes under 38.1mm OD, suitable for welding and mechanical connections. ASTM A53 Grade B equivalent.
Condenser Tube Seamless Steel 26mm OD
Admiralty brass equivalent carbon steel seamless tube (26mm OD) for surface condenser cooling water service. HTS 7304.39.0020 classification for nonalloy seamless tubes <38.1mm OD used in power plant condensers. Enhanced corrosion resistance via phosphorus addition.
Hydraulic Cylinder Barrel Tube 34mm OD
Heavy-duty seamless carbon steel tube (34mm OD, 8mm wall) for hydraulic cylinder barrels in construction equipment. Classifies under HTS 7304.39.0020 as other nonalloy seamless tubes <38.1mm OD with superior yield strength for high pressure service. Honed and chrome plated interior.
Instrumentation Panel Tubing 10mm OD
Small diameter seamless steel tubing (10mm OD) for instrumentation panels and control cabinets. HTS 7304.39.0020 for nonalloy seamless circular tubes under 38.1mm OD used in pneumatic control circuits. Annealed for maximum formability in panel fabrication.
Precision Hydraulic Tubing 24mm OD
Cold finished seamless carbon steel tubing (24mm OD) for high precision hydraulic circuits in machine tools. Borderline HTS 7304.39.0020 classification as other seamless nonalloy tubes <38.1mm OD, with dimensional tolerances approaching precision tube limits. RMS 16 microinch surface finish.