Titanium tubes play a critical role in satellite propulsion systems, thanks to their exceptional strength-to-weight ratio, corrosion resistance, and high-temperature performance. Here’s a detailed look into how and why titanium tubing is used in this high-tech domain:
Applications of Titanium Tubes in Satellite Propulsion
Propellant Feed Lines
Carrying fuel (e.g., hydrazine, UDMH) and oxidizers (e.g., NTO)
Precision-welded Ti tubes ensure safe, leak-free transfer under pressure
Pressurant Lines
Routing helium or nitrogen to pressurize fuel tanks
Thruster Plenum Chambers or Nozzle Liners
Occasionally formed from titanium alloys where erosion and weight balance is critical
Structural Supports for Thruster Assemblies
Titanium tubes can double as both conduit and load-bearing supports
Why Space Systems Prefer Titanium Tubing Over Alternatives
Aluminum: Lighter but not suitable for high temp or reactive propellants
Stainless steel: Strong but too heavy for strict weight budgets
Composites: Excellent for some parts, but not always suitable for pressure or weld-sealed tubing