Cold-Drawn Boiler Tube ASTM A179
Seamless carbon steel tube, cold-drawn, with circular cross section, specifically designed for use in fire-tube boilers to convey high-pressure steam and water. Meets ASTM A179 specifications for low-carbon steel suitable for bending and flaring. Classified under 7304.31.60.10 due to its seamless construction and explicit suitability for boilers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If having external diameter over 114.3 mm
Larger diameter cold-drawn tubes fall under statistical suffix for bigger sizes, still seamless nonalloy steel.
If welded instead of seamless
Welded carbon steel tubes for boiler use shift to Chapter 73 heading for welded pipes.
If imported as parts of complete heat exchangers
If specifically imported as assembled heat exchanger parts, classification moves to machinery parts heading.
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Import Tips & Compliance
• Obtain mill test certificates verifying chemical composition and mechanical properties to confirm suitability for boilers
• Ensure documentation specifies cold-drawn process and end-use to avoid reclassification to general tubes
• Comply with ASME Boiler Code requirements for pressure vessel materials during customs valuation
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