P5 Heat Exchanger U-Tube OD 25mm
Seamless P5 (5Cr-0.5Mo) alloy steel U-bent tube OD 25 mm for shell-and-tube heat exchangers. Bends formed cold then stress-relieved for fatigue resistance. 7304.59.20.40 applies to seamless alloy tubes <38.1 mm OD suitable for heat exchangers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with rolled-on flanges
Flanged tube ends become pipe/tube fittings under 7307.
If pre-installed in exchanger bundle
Tube bundles assembled for heat exchangers classify as machinery parts.
If hollow drill bars
Oil/gas drilling applications have specific hollow bar provisions.
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
• U-bend radius and leg length must match declared specs exactly
• Hydrotest both straight and bent conditions; provide dual certificates
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