Of heat-resisting steel
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Of heat-resisting 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 7304.59.60.00
Seamless Heat-Resisting Steel Furnace Tube
A seamless tube made from heat-resisting alloy steel, designed for high-temperature applications in industrial furnaces. It falls under HTS 7304.59.60.00 due to its seamless construction, circular cross-section, and composition of heat-resisting steel capable of withstanding extreme temperatures without deformation.
Incoloy 800 Seamless Boiler Tube
Seamless tube of Incoloy 800 heat-resisting steel alloy used in superheater sections of boilers for elevated temperature steam service. Classified under HTS 7304.59.60.00 for its seamless, circular profile and high-temperature resistance exceeding standard carbon steels.
Alloy 600 Seamless Heater Exchanger Tube
Seamless Inconel Alloy 600 tube for fire-tube heaters and heat exchangers in petrochemical service, offering oxidation resistance above 1000°C. Classified in HTS 7304.59.60.00 for heat-resisting seamless steel tubes of circular cross-section.
AL-6XN Seamless Chemical Reactor Tube
Seamless AL-6XN super-austenitic heat-resisting steel tube for jacketed chemical reactors processing at elevated temperatures and pressures. HTS 7304.59.60.00 for its alloy steel composition, seamless manufacture, and circular heat-resistant design.
17-4PH Seamless Aerospace Duct Tube
Seamless 17-4PH precipitation hardening heat-resisting steel tube for aircraft engine ducting with thermal cycling resistance. Covered by HTS 7304.59.60.00 as circular seamless tubes of other heat-resisting alloy steel.
Carburizing Furnace Seamless Retort Tube
Seamless heat-resisting steel tube for carburizing furnace retorts, resisting carbon diffusion at 950°C atmospheres. HTS 7304.59.60.00 designation for seamless circular alloy steel tubes engineered for prolonged high-temperature exposure.
Hastelloy C-276 Seamless Process Pipe
Seamless circular tube of Hastelloy C-276 nickel-chromium-molybdenum heat-resisting steel for chemical processing plants handling corrosive high-temperature fluids. HTS 7304.59.60.00 applies to its seamless form, alloy composition, and heat-resistant qualities.
310 Stainless Seamless Kiln Tube
Seamless tube from ASTM A312 Grade 310 stainless heat-resisting steel for rotary kilns in cement production, enduring temperatures up to 1100°C. Falls under HTS 7304.59.60.00 as other seamless alloy steel tubes of heat-resisting steel with circular cross-section.
RA333 Heat-Resistant Seamless Muffler Tube
Seamless RA333 alloy steel tube for high-performance automotive exhaust mufflers enduring combustion temperatures. HTS 7304.59.60.00 covers its seamless circular form and heat-resisting steel properties for automotive thermal applications.
253MA Seamless Incinerator Pipe
Seamless 253MA austenitic heat-resisting steel pipe for waste incinerator flues handling temperatures over 900°C with high creep strength. Fits HTS 7304.59.60.00 as other seamless alloy steel tubes designed for heat resistance.