SA-213 TP304 Boiler Tube OD 19mm
Seamless TP304 stainless alloy steel tube per ASME SA-213, outside diameter 19 mm, for superheaters and heat exchangers in power plants. Its corrosion resistance and strength at high temperatures qualify it for boiler applications. Fits 7304.59.20.40 due to diameter and specified end use.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cold-drawn and under 19 mm OD
Specific cold-drawn provisions exist for smaller diameters in other alloy categories.
If imported as part of heat exchanger assembly
Assembled into machinery parts shifts to Chapter 84 for heat exchanger components.
If over 16mm wire-like cross-section
Hollow profiles resembling wire (max dimension ≤16mm) classify under Chapter 72 semifinished.
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Import Tips & Compliance
• Provide ASME certification and chemical analysis to confirm alloy type and seamless process
• Label with exact OD and wall thickness to match statistical suffix requirements
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