Select Materials in the Job Preferences dialog and click the Modification button. Select the Steel tab to access the following parameters. 
Define the following: 
Name 
The name of the defined steel. 
Note: The material name must be assigned before the Add button is pressed. 
 
Description 
A description of the defined steel. 
 
Elasticity
- Young Modulus - the value of Young's modulus for the defined steel. 
 
- Poisson ratio - the value of Poisson's ratio for the defined steel. 
 
- Shear modulus - the shear modulus for the defined steel. This influences shear forces on structure deformation. 
 
 
Others
- Density (unit weight) - the density (unit weight) of the defined steel. 
 
- Thermal Expansion Coefficient - the thermal expansion coefficient for the defined steel. 
 
- Damping Ratio - the damping ratio of the defined steel.