The next step is to create a gradient fill that goes from black to white and back to black again. This requires the use of the Fill Tool. The settings I used were:

Apply the fill to the image with a 100% tolerance so that the image looks like:

The next step is to create a new object by by using the background. To do this, first mask off the entire image by selecting Mask, Select All. Then select Object, Create, Object:Copy Selection. After the new object is created it should be the currently selected layer. You can verify this in the Objects Docker. Once the new Object is selected, choose Effects, Noise, Add Noise.

Here are the settings I used:

After you do this, the image should look like TV static. The next step is to apply a motion blur to the new object. To do this, make sure the new object is still selected, then choose Effects, Blur, Motion Blur. The dialog box should be set like this:

The final step is to set the the top object's opacity so that the underlying gradient can show through the top layer. This is done by a right click using the Object Picker Tool.

After you set the opacity, your image is complete.

This effect looks great as a tile background for web pages or other graphics work. Play around with different color combinations for the fill to achieve different types of metal. Changing the opacity will make the metal look shinier or duller, so play around and have fun with it. If you make something cool with this tutorial, lemme check it out. Drop me an e-mail.