12Cr Seamless Steel Tube 13-inch OD
Seamless 13-inch (330 mm) OD tube from 12% chromium alloy steel, 6 mm wall thickness, for desalination plant evaporators. Fits HTS 7304.59.80.60 as other alloy seamless circular tube, OD 285.8-406.4 mm, wall <12.7 mm. Martensitic structure offers superior erosion resistance in seawater.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless longitudinal welded
Stainless Cr alloys often use welded 7305.20 casings.
If OD exceeding 406.4 mm
Larger diameter seamless alloys have separate statistical reporting.
If assembled into water treatment modules
Functional water filtering machinery parts under Chapter 84.
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Import Tips & Compliance
• Provide hardness and pitting resistance tests confirming alloy properties
• Invoice wall thickness prominently; ultrasound reports prevent disputes
• Distinguish from boiler tubes if not pressure-rated to avoid higher scrutiny
Related Products under HTS 7304.59.80.60
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Pressure Piping Alloy Steel Tube 14.5-inch OD
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Low-Temp Alloy Steel Pipe 14-inch OD
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Seamless Alloy Steel Boiler Tube 14-inch OD
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