Brazing Copper To Steel Hvac

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.

Brazing copper to steel hvac.

We will be brazing or silver soldering refrigerant a c lines for hvac equipment. I m a residential hvac guy. Both oxygen free and oxygen bearing copper can be used for brazing work. Hot tips for copper brazing.

Brazing rods look like straightened metal coat hangers and like solder they become stronger as the percentage of silver they contain increases. In this video i go over the oxy acetylene torch tips i use along with the gas pressures i use. The most commonly used brazing filler metal types used to join copper tube and fittings fall into two distinct categories. I also give some tips on how to braze a copper fitting and ref.

My paperback and e book. For joining copper lines we usually use brazing rods that are made out of a copper phosphorous combination. One of my friends owns a motel and asked me to replace the compressor in his pepsi machine for him. Lap joints work best with an annealed copper brazed joint.

The braze is what is melted by the torch to join two metals. The percentage is the percentage of silver content in the rod. Thank for you. I hear standard 15 silverphos is not a good choice.

Step by step tutorial on how to braze copper pipe like a pro. The only real reason to use lower silver levels is the cost and the difference can have many techs and owners wondering what the difference is. The most common rods used for typical hvac brazing are 0 5 and 15 with several other levels mixed in there.