Hello all
I have a quantity of old plumbing fittings of the compression type and am unsure of the composition of the brass. These are usually very yellow colour and I assume very little copper content.
Can anybody advise what percentage of copper needs to be added to make it look more Gunmetal colour ir can these be used as is in a furnace for castings?
Phil
I have a quantity of old plumbing fittings of the compression type and am unsure of the composition of the brass. These are usually very yellow colour and I assume very little copper content.
Can anybody advise what percentage of copper needs to be added to make it look more Gunmetal colour ir can these be used as is in a furnace for castings?
Phil