SylvanLMP
No problem mixing brass/copper and stainless steel.
Many stainless steel sinks have brass faucets on them.
Many HIGH pressure steam valves have SS seats and stems and brass/iron bodies.
Thermodynamic stainless steel steam traps mixed with ferrous metal piping does not corrode.
The basket strainer on most commerical kitchen sinks are made of stainless steel and have a brass tubing tail piece with no signs of corrosion.
When installing Galvainzed leader lines out side of a building I used Stainless steel hooks.
Many roofers use a galvanized gutter with SS Nails to hold it in place.
