Compare strength as well as weight.(all things held constant; size, shape, etc.)
Titanium nuts and bolts the lightest strongest and most expensiveYou didn't say which parts you wanted to makeA carbon fiber hood is lighter and stronger than steel and fiberglassFabricated aluminum is light but not very strong.
1Low density and low thermal conductivity 2Shorter heat up and cool down time 3Resilience and resistance to thermal shock 4Flexible and easy to cut or install 5Excellent resistance to tensile stress and can resist temperature range 950-1400℃ 6.Thermal Shock Resistance Corrosion Resistance
