brazing brass to copper?

[evil-98]

not sure where to post this but i think you guys are probably going to be the most knowledgeable around here. :rolleyes:

how hard is it to braze brass to copper
specifically a copper fitting and a brass plug
all i know is i need like a 15% silver solder and proper flux

or am i totally off?

thanks in advance

regards

[DetroitAC]

45% silver alloy like Harris Safety-silv 45 and Harris white flux. Piece of cake if you use those. A 15% phos/copper/silver alloy will also work, but you still need to use the flux.

[evil-98]

awesome, so its not bad at all great

thanks :up:

edit:

btw all i have is a propane torch, am i still good?

[loonym]

awesome, so its not bad at all great

thanks :up:

edit:

btw all i have is a propane torch, am i still good?Depends on the torch head and even more on the size of what you're brazing.

[evil-98]

Depends on the torch head and even more on the size of what you're brazing.

the fittings are 1/2" copper fittings and its a .625" diameter x .5" brass plug

i have this http://bernzomatic.com/bernzomatic/consumer/jhtml/detail.jhtml?prodId=BernzoProd100018

http://ecx.images-amazon.com/images/I/31TE5KPENML._SL500_AA280_.jpg (http://www.bernzomatic.com/bernzomatic/consumer/images/hires/JT681.jpg)

[EvoCarlos]

45% silver alloy like Harris Safety-silv 45 and Harris white flux. Piece of cake if you use those. A 15% phos/copper/silver alloy will also work, but you still need to use the flux.

^^ agreed had to make a moddification to a water rad form my new waterchiller project
blow lamp is all i used it was easy just get them cherry red and away you go:)
sorry for poor image qly it was off my phone
http://i90.photobucket.com/albums/k262/evocarlos/water%20cooled/Image121.jpg

[loonym]

Small mass, easily heated should be fine.

[[XC] 2long4u]

http://ecx.images-amazon.com/images/I/31TE5KPENML._SL500_AA280_.jpg (http://www.bernzomatic.com/bernzomatic/consumer/images/hires/JT681.jpg)

You may have problems with that tip, but you might get locky because the parts are really small. You should get a tip with a flame spreader or swirl tip.

[evil-98]

2long4u;3220598']You may have problems with that tip, but you might get locky because the parts are really small. You should get a tip with a flame spreader or swirl tip.

whats the benefits from the different tips?

and im assuming you mean the whole thing needs to be changed right?

http://www.mclendons.com/item.asp?sku=045040&cat=Plumbing&subcat1=Propane+%2D+Mapp+Fuel+Tools&subcat2=
http://www.mclendons.com/img/products/04/045040.jpg

http://www.mclendons.com/item.asp?sku=045140&cat=Plumbing&subcat1=Propane+%2D+Mapp+Fuel+Tools&subcat2=
http://www.mclendons.com/img/products/04/045140.jpg

[teyber]

hey- if it has that connection you can just buy a $8 dollar can of mapp and use it instead of propane in MOST cases- id double check because some are not made for mapp.

Just be patient... let the torch work :) 15% is a fraction of the cost of 45% but you can get 45% in smaller quantities.

regards

[wdrzal]

45% will have a lower liquidius point.......than 15%