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FLHTC
06-02-2014, 10:21 AM
I came across a one pound container of Baer Brothers pure bronze powder and was wondering how well this would blend with lead as a hardener. Any metallurgists here? This stuff is a consistency of talcum powder or finer

62chevy
06-02-2014, 11:21 AM
Isn't bronze made of tin and copper?

Freightman
06-02-2014, 11:34 AM
correct copper and tin make bronze, the older stuff used arsenic but was toxic.

madsenshooter
06-02-2014, 11:39 AM
Just a little dab will do you!

popper
06-02-2014, 12:37 PM
Have no idea what temperature would be required to get it to mix. An interesting idea.

357maximum
06-02-2014, 12:50 PM
You would need to get your lead alloy up to 16-1700 degrees in order to get it to go in easily. At 14-1500 degrees it should go in but it will be like melting an ice cube in cold water...it is gonna take a bit of time and you will be past the offgassing point of the lead....do not inhale.

If I were gonna attempt to use it I would get about 3 lbs of PURE PURE PURE lead really hot over a turkey burner in a thin stainless bowl (OUTSIDE) and use a rosebud tipped torch from the top to add extra heat. When the lead was glowing in the daylight I would dump 1/2 your powder in and add a big blob of paste soldering flux ...stand up wind and stir it while applying all the heat the rosebud tip/turkey fryer base will allow. Not sure if I would succeed but that is how I would take a stab at it.

DR Owl Creek
06-02-2014, 01:21 PM
I've never tried it, so I don't know. The melting temperature of bronze, depending on the composition of the alloy, should be around 1742 degrees F, so like 357Maximum says, I don't think it would be worth it.

Dave

bangerjim
06-02-2014, 01:36 PM
It is paint pigment not intended for alloying with other metals!

I could be done but it is definitely NOT worth the time and effort. Just buy Sn/Sb alloys already done for you.

I have 5 different colors of that stuff I use in flash gilding antiques.


bangerjim