Pink means it does not have enough zinc.
This might be the whole casting, or it might just be the surface, as some zinc will burn out during casting.
Or, if it gets acid on it (like my old cat upchucking on an antique English charcoal room warmer) that will selectively dissolve the zine & leave a reddish colored metal.
Polish it a bit before you give up on it.
And, as said above, a pretty wide range of copper-zinc alloys were used for "brass" hardware in the old days.
Quick review: Cartridge brass (C260) is about 70% copper, 30% zinc & is usually what you get when you buy new sheet or bar. Except much of it has a percent or so of lead added for ease of machining/engraving. Lead will make it break, or crumble, when you try to bend it hot. So bend it cold, and anneal afterwards.
Cast "brass", well there are a lot of things that might be. Many also have lead to improve casting. I'd never bend cast brass hot for fear it would crumble. Reaves has great castings, I don't know what they are, nor whether they contain lead, but I like them.
If you must have a catalog & on-line shopping, buy somewhere else.
If you want the best castings, buy from Reaves Goehring & do it his way. If nothing else, the education you get on the phone with him is worth a lot.
That, in MHO, is your choice.