Cold-Drawn 17-4PH Stainless Refining Furnace Tube
Precipitation-hardened 17-4PH stainless seamless tube, cold-drawn for petrochemical refining furnace transfer lines enduring hydrogen attack. Provides strength at elevated temperatures up to 700°C. Classified 7304.41.60.15 for refining furnace suitability as cold-formed stainless tube.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other cold-drawn stainless not for named equipment
Tubes without specific boiler/heat exchanger designation use residual category.
If stainless steel with attached flanges
Flanged pipe/tube fittings have dedicated fittings classification.
If parts of complete refining furnaces
Furnace-specific machined tubes classify as machinery parts.
Not sure which classification is right?
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Import Tips & Compliance
• Include heat treatment records showing PH condition for strength verification
• Specify API 5LC compliance if for cracking furnace service in documentation
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