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T304 Stainless Condenser Tube for Feedwater Heaters

These seamless T304 stainless tubes serve in condenser units and feedwater heaters of steam turbines, providing corrosion resistance in moist, high-pressure conditions. Circular cross-section design optimizes fluid flow in power generation systems. Classified in 7304.59.20 for alloy steel seamless tubes suitable for condensers.

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.

7304.41.30Lower: 17.5% vs 35%

If cold-drawn with yield strength over 600 MPa

High-strength cold-drawn boiler tubes have separate statistical provisions.

8402.90.00Higher: 39.3% vs 35%

If parts of steam boilers

Pre-assembled into boiler sections classifies under boiler parts, not raw tubes.

7222.40Lower: 10% vs 35%

If non-circular alloy steel profiles

Elliptical or other non-circular condenser tubes shift to Chapter 72 hollow profiles.

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Import Tips & Compliance

• Certify U-bend configurations if applicable, as they must still meet seamless criteria

• Avoid alloy misdeclaration; T304 is alloy steel despite common stainless labeling

• Require proof of condenser end-use to prevent downgrade to general tubes

Related Products under HTS 7304.59.20

Seamless Alloy Steel Boiler Tube SA-213 TP304

This seamless tube made from TP304 stainless alloy steel is designed specifically for high-pressure boilers and superheaters, meeting ASME SA-213 specifications. It features a circular cross-section and is cold-drawn for superior strength and corrosion resistance in elevated temperature environments. Classified under 7304.59.20 due to its seamless construction from alloy steel and suitability for boiler applications.

SA-213 TP347H Superheater Tube

TP347H stabilized stainless seamless tubes for superheaters in utility boilers, resisting intergranular corrosion after welding. Heavy wall construction handles 600°C+ steam conditions. Under 7304.59.20 for alloy steel tubes in superheaters.

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.

Alloy 625 Condenser Repair Tube

Inconel Alloy 625 seamless tubes for condenser tube sheet repairs in nuclear and fossil plants. Exceptional corrosion resistance in chloride environments. 7304.59.20 for condenser applications.

P5 Alloy Steel Refinery Furnace Tube

SA-335 P5 (5Cr-0.5Mo) seamless tubes for hydrogen reformers and cracking furnaces. Seamless design essential for high-purity hydrogen service. Fits 7304.59.20 refining furnace criteria.

Hastelloy C-276 Seamless Heat Exchanger Tube

Hastelloy C-276 seamless tubes excel in corrosive heat exchanger service for chemical processing and refining condensers. The nickel-chromium-molybdenum alloy provides unmatched resistance in harsh environments. Fits 7304.59.20 as other alloy steel seamless tubes for heat exchangers.