to make a chrome shader, all you have to do in make reflections and refractions to maximum and adjust specular settings (not too high or it will look wierd)

https://www.highend3d.com/files/dl.3d...p&file_id=1827

this file has metal/chrome shaders -very good- just download the shaders, install and disect the settings- this way you can gain a better understanding of the settings used.