Type 317LMN Boiler Economizer Tube
Seamless Type 317LMN stainless tube for boiler economizers recovering waste heat, with nitrogen-enhanced strength. Circular cross-section for flue gas heat transfer. Classifies under 7304.49.0045 as suitable for boilers despite economizer function.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If welded economizer tubing
Welded construction excludes from seamless heading.
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Import Tips & Compliance
• Nitrogen analysis proving LMN variant essential for classification
• Economizer qualifies as 'boiler' use per HTS language
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