253MA Heat Exchanger Tube
Seamless 253MA austenitic steel tube for heat exchangers in boilers, with nitrogen-enhanced heat resistance up to 2000°F. Used in refining applications. 7304.59.20.30 due to heat-resisting alloy, circular seamless profile, heat exchanger suitability.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If standard alloy steel
Lacks specific heat-resisting documentation shifts to general alloy tubes.
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Import Tips & Compliance
• Confirm European material numbering system equivalence; include NACE MR0175 compliance if sour service; separate coiled vs straight lengths
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