Brazing Brass for Resto. Project

[120RIR]

I need to make some modifications to a cast brass triggerguard and need to add material.  Can you braze brass?  I can solder 'till the cows come home but I would of course like to make the additions invisible or at least not readily apparent.  Any suggestions would be appreciated.

[rich pierce]

You’ll need a braze that melts at a lower temp than the brass. Rio Grande supply has a yellow silver bearing material that will work. I’m not 💯 clear on when something is s solder versus a braze.

[577SXS]

Have someone TIG weld it. I've modified trigger guards and butt plate using TIG.

[Goo]

I do what you are asking about all the time with an oxy acetylene torch and 1/16" brazing rod.  Sometimes you get weird alloys in the castings that bubble and cause some porosity.  It takes hand eye coordination and heat control but it takes some practice and a lot of nerve.    The main problem comes from over heating the work and having the piece collapse into  two pieces or a puddle. so you have to support the work with soft fire brick or some other method that doesn`t cause too much of a heat sink.   if you want you can send it me and I will do it for you pm me for details     

[120RIR]

Thanks guys...especially for the offer to do the work for me!  I'm kinda' re-thinking how to approach this annoying little project and will check out that yellow stuff from Rio that Rich suggested.  Even if the joint shows a bit at first, by the time I done with some ageing it shouldn't be visible at all.   

[davec2]

120RIR,

This old thread may be of some help.......

https://americanlongrifles.org/forum/index.php?topic=24222.msg232336#msg232336

[Grischi]

You can use silver solder. It needs about 1240f working temperature.
I did it recently.

Christian

[120RIR]

Silver solder...absolutely and I've worked with that for decades.  I just want the joint to be as discreet as possible and silver will show to a discerning eye in a restoration.