A component composite includes a first component having a first contact surface and at least one second component having a second contact surface contacting the first contact surface, the first contact surface having a surface structure which has a microstructure which is superposed by a nanostructure, the contact of the second contact surface on the first contact surface taking place by at least partially melting the material of the second component, and the melting point of the material of the first component being higher than the melting point of the material of the second component.