For use material or shader you should use Append form file. Follow path:
- In your scene File -> Append (shift+F1) -> Select “Steel_SGR_shader.blend”->
- Material -> “Steel_SGR” to load already setup material;
- NodeTree - to add only steel node, if you want add it in your material. After that you can add node: Node Editor -> Add -> Group -> “Steel_SGR_shader”;
- Texture Coordinate (Object) shader in mapping sockets;
- Connect outputs to appropriate Material output sockets.
To conrtoll of Global scaling of material, use node Mapping (Add -> Vector -> Mapping)