text: N40H = {
      'magnet_material'            : "Arnold/Reversible/N40H",
      'magnet_material_density'    : 7450, # kg/m3
      'magnet_youngs_modulus'      : 160E9, # Pa
      'magnet_poission_ratio'      :.24,
      'magnet_material_cost'       : 712756, # $/m3
      'magnetization_direction'    : 'Parallel',
      'B_r'                        : 1.285, # Tesla, magnet residual flux density
      'mu_r'                       : 1.062, # magnet relative permeability
      'magnet_max_temperature'     : 80, # deg C
      'magnet_max_rad_stress'      : 0, # Mpa  
      'magnet_therm_conductivity'  : 8.95, # W/m-k
      }