🔍 Key Concepts

• Material properties of copper tubing in marine hydraulic (fluid power) systems • Difference between temperature resistance, corrosion resistance, and vibration/fatigue performance • How stress and work hardening affect metals under repeated loading

💭 Think About

• Think about where you have actually seen copper lines used on vessels: are they usually in high-vibration, high-pressure hydraulic runs, or in more moderate service? • Which property of copper is most valued in a marine environment where salt water is present? • Under repeated bending or flexing, does copper tend to stay soft, or does it work-harden and eventually crack?

✅ Before You Answer

• Be clear on what corrosion resistance means specifically in a marine (saltwater) environment • Consider whether copper is normally chosen for very high-temperature or severe vibration applications in hydraulics • Recall that many metals, including copper, can work harden under repeated stress rather than resist hardening