Brazing Copper To Stainless

However a key advantage is that many dissimilar metals can be joined to stainless steels by brazing.

Brazing copper to stainless.

Clean and flux the area to be silver brazed use a tip that produces a flame that is hot enough to heat the area without taking all day but not so hot that it is hard to control. Ssf 6 silver solder and a propane torch are used to demonstrate how to join a piece of copper tubing to a piece of stainless steel tubing. When brazing brass or bronze fittings stay silv white flux is required with these alloys. These oxides inhibit the flow of brazing alloy and must be physically removed after the heat treating process.

Do not use phosphorus bearing alloys as the joint may be brittle. Induction brazing test with ubraze was able to braze the parts in 9 to 11 seconds for the full braze cycle. Clean the surface with steel wool or an emory cloth. The steam will not have any pressure as the opposite end will be open to the air.

These alloys contain phosphorus and are self fluxing on copper. 45 silver solder or better with white or brown flux to start but always point your flame at the copper allowing the ss to only get near the flame. 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. 9 to 11 seconds.

Brazing stainless steels requires adequate planning as the alloys used to form joints must have properties compatible with the base metal. Can copper stainless be welded brazed soldered. Once the solder melts onto the copper move some heat onto the ss. Apply flux to both surfaces to be brazed make sure you have a flux that is capable of etching stainless steel.

Not using a pure atmosphere. Slip parts together and start heating the copper in a circular motion making sure to heat. Heating treating stainless steel requires a pure furnace atmosphere. The copper pipes will pass steam raising from a container of boiling water.

Here are basic tips for silver brazing copper to steel or stainless steel. And don t burn the stainless. The brazing process can yield strong joints that are ductile clean and smooth. Once you do you will need to wash off your joint with cold water and do it again.

Otherwise the chromium in the metal at least 10 5 chromium by mass will oxidize and make the surface of the assembly appear drossy. This week i want to thank you for helping me out and share what you taught me about. Tune in for today s tips on torch brazing stainless steel. Copper to stainless steel.