Metal Texture

1) New document,
Grab the Gradient Tool (G)
option linear gradient
from the tops menu and
make a vertical line foreground
color hex: #666666
Background: hex: #999999.

2) Add noise to your background image then sharpen it.
3) Add some grain
(Filter --> Texture --> Grain) then motion blur it diagonaly add noise and then after this sharpen it.
4) Create a new layer and render clouds (Filter --> Render --> Clouds) layer effect Overlay; Duplicate the clouds image.
5) Duplicate the clouds image and change the layer effect to Vivid Light.