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2.25Cr-1Mo Boiler Feedwater Heater Tube

Seamless 2.25% chromium-1% molybdenum tubes for economizers and feedwater heaters in coal-fired boilers. Provides oxidation resistance up to 600°C. 7304.59.20 classification for feedwater heater suitability.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

More Specific Codes

This product may fall under a more specific subheading:

7304.59.20.30Of heat-resisting steel
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7304.59.20.40Having an outside diameter less than 38.1 mm
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7304.59.20.45Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm
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7304.59.20.55Having an outside diameter exceeding 114.3 mm but less than 190.5 mm
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7304.59.20.60Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm
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7304.59.20.70Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm
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7304.59.20.80Having an outside diameter exceeding 406.4 mm
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Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7304.39.00Same rate: 35%

If stainless steel grades

Higher chromium stainless variants separate from chromium-moly alloys.

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Import Tips & Compliance

• Verify PWHT (post-weld heat treatment) compatibility in MTRs

• Size documentation prevents pipe (7304.31) confusion

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