You can modify existing material grades using the material catalog.
On the File menu, click Catalogs > Material catalog to open the Modify Material Catalog dialog box.
Select a material grade in the tree and modify its properties.
Use the General tab for entering three alternative names for the material. The names are usually the material names used in different countries or standards. The tab also contains the profile and plate density values.
Use the Analysis tab for entering information on the properties used in structural analysis.
Use the Design tab for entering information on the design-specific properties, such as strengths and partial safety factors.
Use the User attributes tab for creating your own attributes for material grades.
For example, you can define a paint layer thickness, or the maximum grain size of concrete using a user-defined attribute.
When you have finished modifying the material grade, click Update.
Click OK to close the Modify Material Catalog dialog box.
Tekla Structures asks if you want to save the changes to the model folder.
Click OK in the Save confirmation dialog box to save the changes.
The modified material catalog is saved in the current model folder and is available only for that model. To make the modified catalog available for all the other models, use export and import.