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Seamless Steel Instrument Tube 3/4-inch

Small diameter seamless nonalloy steel tube for instrumentation and control lines, 3/4-inch OD. High precision for pressure and temperature sensing systems. Classified 7304.39.00 other category.

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:

7304.39.00.02Having an outside diameter less than 38.1 mm
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7304.39.00.04Having an outside diameter of 38.1 mm or more but less than 190.5 mm
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7304.39.00.06Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm
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7304.39.00.08Having an outside diameter exceeding 285.8 mm
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7304.39.00.16Galvanized, having an outside diameter not exceeding 114.3 mm
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7304.39.00.20Having an outside diameter less than 38.1 mm
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7304.39.00.24Having a wall thickness less than 6.4 mm
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7304.39.00.28Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm
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7304.39.00.32Having a wall thickness exceeding 12.7 mm
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7304.39.00.36Having a wall thickness less than 12.7 mm
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7304.39.00.40Having a wall thickness of 12.7 mm or more but less than 19 mm
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7304.39.00.44Having a wall thickness of 19 mm or more
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7304.39.00.48Having a wall thickness less than 12.7 mm
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7304.39.00.52Having a wall thickness of 12.7 mm or more but less than 19 mm
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7304.39.00.56Having a wall thickness of 19 mm or more
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7304.39.00.62Having a wall thickness less than 12.7 mm
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7304.39.00.68Having a wall thickness of 12.7 mm or more but less than 19 mm
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7304.39.00.72Having a wall thickness of 19 mm or more
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7304.39.00.76Having a wall thickness less than 19 mm
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7304.39.00.80Having a wall thickness of 19 mm or more
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Alternative Classifications

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

7304.41.60Lower: 17.5% vs 35%

If cold-finished instrument grade

Cold-drawn/precision instrument tubes have dedicated subheading.

7306.40.50Same rate: 35%

If welded instrument tubing

Welded precision tubes under 7306.40 welded categories.

9026.10.60Lower: 17.5% vs 35%

If complete instrument assembly

Assembled with sensors/valves, classifies as instruments under 9026.

Not sure which classification is right?

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Import Tips & Compliance

• Cleanliness levels (e.g

• ASTM A380) and end protection specs documented

• Bundle packaging prevents damage claims affecting classification

• Calibration tube certifications if for specific gauge applications

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ASTM A519 Seamless Mechanical Tubing 1-1/2 inch

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Seamless Steel Condenser Tube 1-inch

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