Use importing and exporting for merging material catalogs. Material catalogs are imported and exported as .lis files.
Importing and exporting is useful when you:
upgrade to a newer version of Tekla Structures and want to use a customized material catalog from a previous version
want to combine material catalogs that are stored in different locations
want to share material catalog information with other users
want to combine material catalogs across different environments.
You can also download or share material grades using Tekla Warehouse.