Bassbob
Emissary
What is this in response to ?Not to argue or fight, but "yellow" brass is 51% copper. "Red" brass is 81% copper. Copper is the only component cared about by recyclers. Plenty of yellow brass used in many "plumbing" fittings. Any recycler willing to pay you more money for a "plumbing" fitting they think is red brass, sell it to them.
Critical components such as valves are usually red brass. And valves for gas, are ALWAYS red brass. Couplings, tees, nuts, bushings, etc. are usually yellow.
I can tell you that the place I scrap pays more for Solid red brass gas cocks than they do for casings. And do not mix casings with regular brass.