Small density, low modulus of elasticity, small thermal conductivity, close to tensile strength and yield strength, non magnetic non-toxic, strong damping resistance, good heat resistance, good low temperature resistance, corrosion resistance, air suction performance (gas storage, drying)
High strengthhigh thermal strengthgood corrosion resistancelow temperature performancehigh chemical activitylittle heat conduction elasticitygood toughnessplasticity and high temperature deformation