310S Stainless Refining Furnace Tube
High oxidation resistance welded 310S stainless steel tubes for petroleum refining furnace applications, featuring wall thickness ≥1.65 mm to withstand carburizing atmospheres. Provides excellent creep strength at elevated temperatures. HTS 7306.40.50.15 covers these welded stainless tubes for refining furnaces.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If produced from alloy steel wire per Chapter Note
Tubes from wire feedstock (≤16mm cross-section) may classify under Chapter 72 hollow profiles.
If not designated for specific high-pressure equipment
General welded stainless tubes without equipment specification use residual provisions.
If as assembled furnace components
Tubes with welded return bends classify as complete furnace parts under 8419.
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Import Tips & Compliance
• Provide OEM specifications confirming refining furnace application to support tariff classification
• Document compliance with API standards for furnace tubing materials and fabrication
• Monitor for additional tariffs under Section 301 on steel products from targeted countries
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