Dear enque,
To create a metal material following steps will lead you:
1. Enter the "RMAT" command
2. In the "Materials" dialog box select the "Standard" option from list (at right) and click on "New..." button
3. In the "New Standard Material" dialog box enter a name for the new material.
4. Activate the "Color/Pattern" option and select a color (uncheck the "By ACI" option if required). You can define a pattern as bump map using the "Find File..." to read the pattern from a graphic file
5. Activate the "Reflection" option and set it to a high Value near 1
6. Activate the "Roughness" option and set it to a low value near 0
7. Click OK
8. Attach the new material to an object
9. Click OK
10. Enter the RENDER command and render the model using the "Photo Real" or "Photo Raytrace" method.

Farzad