Heat Exchanger Tube Selection Guide
The Metallurgical & Thermo-Hydraulic Optimization of Heat Exchanger Tubes: A Definitive Guide to Shell-and-Tube Tubing Author: Principal Thermal & Mechanical Engineer (15+ years in process & power industries) Reading time: 25 min | Peer-review style: Critical review with industrial data Abstract The tube is the functional heart of any shell-and-tube heat exchanger. While much attention is paid to overall exchanger sizing, the tube’s material, geometry, surface morphology, and internal flow regime determine 80% of the thermal performance, 70% of the mechanical integrity, and nearly all long-term fouling and corrosion life. This paper systematically examines: Metallurgical choices (from carbon steel to titanium to advanced alloys) Dimensional standards (BWG, SWG, metric tubing) Internal enhancements (low-fin, micro-fin, twisted tape, spiral indentation) External enhancements (integral low-finned, finned-tube bundles for gas-side control) Failure mechanis...