joining copper to copper, joining copper to brass

[mac_J]

Would like to know which is the best type of brazing rod to use for joining copper to copper and copper to brass/bronze.

Regards

[BigJon3475]

copper to copper- 15% silver
copper to brass- 45% silver

Those have worked well for me if it's a problem. You can use 15% on both but surfaces must be spotless for copper to brass.

[absolute-zero]

35% with reccomemnded flux, works well with disimilar metals as well, like copper to brass or copper to steel or steel to brass.

and definetly agree with big john on 15% copper to copper.

Regards A-Z

[paddyaircon]

also clean surfaces of both metals and a wonderful thing called flux

[Peter_1]

copper to copper with sulfos (silver too expensive) , copper to brass with at least 20% silver.http://www.silfos.com/htmdocs/product_support/how_to_info.html

[Peter_1]

and http://www.copper.org/applications/plumbing/techref/cth/cth_7brzjts_heat.htm

[thermo prince]

Another brand, many of you may already be quite familiar, but worth repeating is ....HARRIS

http://www.harrisproductsgroup.com/consumables/brazingSoldering.asp

Available in most parts of world -I 've seen it stocked up in China and over in Vietnam. Very satisfactory.

regards
T-P

[Peter_1]

this is a better link and it's spelled phosphorus.

http://www.copper.org/applications/plumbing/techref/cth/cth_7brzjts_fill.htm

[damo567]

For general refrigeration use.

Cu to Cu, Silfos 5 , no flux required.
Brass to copper, with flux.

In both cases the joint should be as clean as possible.

[belloni890]

For general refrigeration use.

Cu to Cu, Silfos 5 , no flux required.
Brass to copper, with flux.

In both cases the joint should be as clean as possible.
What manner doyou use to get it as clean aspossible?thanx