Hello
I inherited an amount of bronze and silver brazing rods. They work OK but they bear no markings. The bronze flows nicely capillarly (?) and also can make a smooth concave fillet. Is there some at home, simple way of determining the type of bronze (manganese, silicon, phosphor?) and of silver?
Any advice thanked in advance
Low-fuming bronze will have a white soot from the burnt zinc. Aluminum bronzes are quite hard and will snap if bent. Phosphor bronzes will have an irridescent oxide layer with rainbow colors.
Thanks Ernie. That will make them low-fuming bronze. BTW, I take it the
0.3-0.5 % manganese content in low-fuming does not make it manganese bronze? I read posts in r.c.m about manganese bronze rods being used for braze welding.
Correct. Manganese bronze has little if any zinc
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