.BuildingSystems.HAM.Data.MaterialProperties.Thermal.Aluminium .BuildingSystems.HAM.Data.MaterialProperties.Thermal.Aluminiumrecord Aluminium = BuildingSystems.HAM.Data.MaterialProperties.BaseClasses.MaterialThermalGeneral(id = 5, name = "Aluminium", lambda = 220.0, c = 897.0, rho = 2700.0);