type: thermalexpansion

references:
  - https://commons.wikimedia.org/wiki/File:Coefficient_dilatation_lineique_aciers.svg,
    fit to image description (Scilab code)

Alpha_11: 10.2e-6
Alpha_11,T: 1.260e-08
Alpha_11,T^2: -1.000e-11

T_ref: 293.15