| IfcMaterial | M | IFC Material | Generic Data | 
| DynamicViscosity Pa s | μ | A measure of the viscous resistance of the material | Number | 
| Young's Modulus N/m2 | E | A measure of the Young’s modulus of elasticity of the material | Number | 
| Shear Modulus N/m2 | G | A measure of the shear modulus of elasticity of the material. 0 autocalc G = E /(2*1+ν) | Number | 
| Poisson's Ratio | ν | A measure of the lateral deformations in the elastic range | Number | 
| Coefficient of Thermal expansion 1/K | α | A measure of the expansion coefficient for warming up the material about one Kelvin | Number |