(Español) Negro Calatorao

Negro CalatoraoPhysical-mechanical properties

  • Bulk specific gravity   2,65 gr/cm3
  • Absorption coefficient   0,27%
  • Open porosity   0,72%
  • Compression strength   A 99,42 MPaB 91,83 MPa 
    Standard deviation A 51,06 MPa / B 49,83 MPa 
    Coefficient of Variation A 0,16B 0,17
  • Bending strength   A 20,79 MPa
    Standard deviation   1,2 1-3,30 MPa
    Coefficient of Variation   0,14
  • Freezing:   No frosting
  • Flexural strength after freezing   A 15,4 %
  • Impact resistance
    A Perpendicular stratification 24 cm
    B Parallel stratification 26 cm
  • Knoop microhardness
    Perpendicular stratification   663.2 MPa-67.6 Kg/mm2
    Parallel stratification   565.7 MPa-57.7 Kg/mm2
  • Abrasive wear resistance   2,35 mm