Cold-Rolled TP310 Stainless Superheater Tube
Seamless cold-rolled tube of TP310 heat-resisting stainless steel for superheater coils in industrial boilers. Offers oxidation resistance up to 1100°C with precise wall thickness for high-pressure steam. Fits 7304.51.50.15 as cold-reduced, circular, seamless alloy steel tube for superheaters.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of standard austenitic stainless steel
Non-heat-resisting stainless steel tubes for similar uses fall under 7304.41, based on alloy composition not optimized for extreme heat.
If having non-circular cross-section
Hollow profiles with square or rectangular sections, even cold-drawn seamless alloy steel, are excluded from circular tube headings.
If specifically designed for turbojet/turboprop engines rather than boilers, it classifies as aircraft part in Chapter 84.
Not sure which classification is right?
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Import Tips & Compliance
• Include ASTM A312 or A213 material certificates specifying TP310 grade to prove heat-resisting properties
• Document cold-reduction process via manufacturing records; pitfall is confusion with standard stainless under 7304.41
• Check for pressure vessel certification (e.g
• PED); bulk shipments often require additional NDT test reports
Related Products under HTS 7304.51.50.15
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