Nickel Alloy ASME SB163 N08825 Extruded Fin Tubes For Air Coolers Base Tube Destails ASME SB 163 This specification covers seamless tubes of nickel and nickel alloys,for use in condenser and heat-exchanger service.High-integrity nickel-alloy seamless base tube with integrally extruded fins, engineered for corrosive process streams and high-efficiency dry air cooling in refinery, petrochemical, and offshore service. Chemical Composition (%) max Ni Cu Mo Fe Mn C Si S Cr Al Ti
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As an engineer in Siberia, I tested these fin tubes in extreme cold (-30°C). The ASTM A213 T11 steel performed well with no thermal cracks, and cooling efficiency met expectations (88%). That said, the Russian-language documentation had translation errors in technical terms, causing minor confusion during installation.
Really good quality, the ASME SA249 standard is the real deal. I was worried about the fins getting crushed during the long trip, but the packaging was top-notch—not a single one was bent.
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