Several tips to create metal texture.

Metal - Step 1

To start, we will need a rectangle with rounded edges (right click on Shape tool to select it) and light grey background.

Metal - Step 2
Create a new layer and fill it with the same color. This layer will contain brushed metal texture.

Metal - Step 3

Add a lot of noise (filters menu - noise - add noise).

Metal - Step 4

Next, use Motion blur filter (filters - blur - motion blur) with the angle set to 0 and distance about 70 pixels. Then, hit Ctrl-Shift-L (Auto Levels) to increase texture contrast.

Metal - Step 5