Brazing Carbon Steel To Copper

Here george uses low fuming bronze on a steel to steel joint.

Brazing carbon steel to copper.

Recommended rods by metal type. Use a torch that produces a high intensity flame. The higher the silver content the stronger the bond but the hotter the temperature needed to melt the filler metal. Used for brazing iron nickel and cobalt base metals but we also see their use in copper stainless steel applications.

Use the right brazing rod material for the metal used in your project. Copper and copper zinc bcu x and bcuzn x. Copper phosphorous brazing welding rods. Use it with the safety silv high silver brazing filler metals aws bag series on the above base metals and the stay silv phos copper silver aws bcup series on copper to brass.

Pure copper and copper zinc filler metals are used for brazing steel and other materials. The fillers containing zinc are not recommended for joining. But you can attach copper to steel with silver solder using a propane torch and call it whatever you like. Brazing with bag 1a bag 1 and bag 2 is suitable for joining cu ni to any other copper alloy.

So here is the video with a few tips on silver brazing copper to steel and brazing stainless steel bolts to some copper washers. It has an active temperature range of 1050 1600 f 565 870 c. With proper flux provided in the joint brazing steel can be done with mechanized torch setup or within induction coils depending on requirements and availability of equipment. A table listing copper base alloys can be found in a commercial publication.

The brazing rod should be melted by the heat of the metal pieces being joined not by direct contact with the flame of the torch. I use the term silver brazing instead of silver solder because technically anything over 840 degress f is brazing. White flux is useful for brazing copper brass steel stainless steel and nickel alloys. Harris low fuming bronze is designed for repair and fabrication applications on steel copper copper alloys nickel and nickel alloys.

This classification is generally used for joining a variety of ferrous and non ferrous metals.