Cast Iron Exhaust Stack Pipe

Tall hollow cast iron pipe serving as exhaust stacks for industrial furnaces. Under HTS 7303.00.00.90 as other cast iron pipes for high-temperature emissions. Corrosion-resistant interior lining.

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%

Alternative Classifications

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

7303.00.00Same rate: 35%

If flanged segments

Flanged pipes have specific breakout.

8417.90.00Higher: 38.9% vs 35%

If oven parts

Furnace/oven integral parts classification.

2618.00.00Same rate: 35%

If granulated for recycling

Unwrought form changes to Chapter 26.

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

• EPA-equivalent certs for emissions compliance

• Wall thickness docs to confirm cast iron

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