Hi Dave. For sure this style of screen is available in steel or stainless. I am not sure about brass/copper. This type of screen media is used extensively in fine aggregate screening and other types of product screening applications.
I can check with some of the maintenance guys at work to see if they have any in that size, and if so I can likely get you what you need. Again it will be steel or stainless steel though.
There are several manufacturers/distributers around here that can get any size you want. Here is a link to WS Tyler
http://wstyler.com/product/industrial-woven-wire-cloth/. There is also Major Wire and others
http://www.majorwire.cc/en/content/home
Ill get back to you by PM and let you know if I can get some. If not, Ill get you an Alberta rep contact number from one of the suppliers.