Les propietats físiques del material de contacte són la investigació de materials de contacte i trien una de l’índex de rendiment important . les seves propietats físiques que inclouen la densitat, el punt de fusió, la resistivitat, el coeficient de temperatura de resistència, la conductivitat tèrmica, el mòdul elàstic i la duresa, etc . contact materials using state, namely, physical properties and its electrical contact materials to use and has no direct corresponding relationship between performance and makes physical properties of contact materials is reference indicators, contact materials research often no standard between producers and users Prospective evaluation. Relevant national standards in our country, on the other hand, the physical properties of contact materials only for density, resistivity and hardness proposed specific indicators, its rationality, Integritat, qüestionable .
