Technically you can either braze or solder though you cannot braze with solder or solder with brazing rods.
Brazing copper to steel pipe.
Here are basic tips for silver brazing copper to steel or stainless steel.
We will be brazing or silver soldering refrigerant a c lines for hvac equipment.
Step by step tutorial on how to braze copper pipe like a pro.
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The most commonly used brazing filler metal types used to join copper tube and fittings fall into two distinct categories.
The brazing temperatures for most of the brazing alloys used to joint copper piping systems bcup and bag alloys see below are roughly between 1 150 f 621 c and 1 550 f 843 c.
When brazing brass or bronze fittings stay silv white flux is required with these alloys.
When brazing iron steel or other ferrous metals select one of the stay silv brazing alloys such as safety silv 45 or safety silv 56 with safety silv white brazing flux.
If you re using silver solder that is solder with 45 percent silver or higher to connect copper to steel you must always use an acid based flux.
These alloys contain phosphorus and are self fluxing on copper.
Yes copper and stainless steel can easily be soldered or brazed together using a filler material that usually contains tin and silver.
If you re brazing with a copper phosphorous brazing rod including those with silver flux is not 100 percent mandatory when working with lines that are also copper though it s recommended.