Cold-Reduced 304H Stainless Refinery Furnace Tube
High-carbon 304H stainless cold-reduced tube for convection sections in oil refinery furnaces, designed for 800-1100°C service. Seamless construction prevents leakage in high-pressure gas streams. HTS 7304.41.60.15 covers refining furnace applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for superheaters/heat exchangers specifically
Statistical breakout tracks exact equipment type within base heading.
If of alloy steel, longitudinal seam welded
Welded high-temp alloy tubes have separate large-diameter provisions.
If coiled for furnace tube trays
Pre-formed coil assemblies classify as gas turbine/furnace parts.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include furnace zone design temperatures in end-use documentation
• Certify C content 0.04-0.10% for 304H grade verification
• Declare as cold-worked, not annealed-and-pickled which might suggest hot finish
Related Products under HTS 7304.41.60.15
Cold-Drawn 316L Stainless Steel Boiler Tube
Seamless cold-drawn tube made from 316L stainless steel, designed specifically for high-pressure steam boilers in industrial applications. Its circular cross-section and precise tolerances ensure resistance to corrosion and thermal stress in boiler environments. Classified under 7304.41.60.15 due to its suitability for use in boilers as a seamless stainless steel tube.
Cold-Rolled TP304 Stainless Steel Superheater Tube
Seamless cold-rolled tube of TP304 stainless steel optimized for superheaters in power generation plants, enduring extreme temperatures and pressures. The cold-reduced process provides smooth finish and tight tolerances ideal for superheater coils. Falls under 7304.41.60.15 for its designated use in superheaters as cold-formed seamless stainless steel.
ASTM A249 TP316Ti Boiler Feedwater Heater Tube
Cold-rolled seamless tube per ASTM A249 in TP316Ti stabilized stainless steel for feedwater heaters, resisting intergranular corrosion in high-temperature water systems. Circular profile suitable for cold-forming as defined in chapter wire note. 7304.41.60.15 applies for feedwater heater use in cold-reduced stainless category.
Incoloy 800H Cold-Drawn Superheater Tube
Cold-drawn seamless Incoloy 800H tube (UNS N08811) for high-temperature superheaters in fossil fuel plants, solution-annealed for creep resistance. Though nickel alloy, classified as stainless steel per tariff definitions. 7304.41.60.15 for superheater application.
TP347HFG Cold-Rolled Boiler Tube
Advanced TP347HFG stainless seamless cold-rolled tube for thick-walled water wall panels in ultra-supercritical boilers. FG grade indicates forged grain structure for superior creep strength. Classified under 7304.41.60.15 for boiler service.
Seamless 310S Stainless Steel Heat Exchanger Tube
Cold-drawn seamless tube in 310S stainless steel grade, engineered for heat exchanger service in chemical processing plants with excellent oxidation resistance. Circular cross-section under 16mm wall allows cold forming per chapter definition. Classified in 7304.41.60.15 for use in heat exchangers as cold-reduced stainless steel tubing.