Brazing Copper To Steel Hvac

Lap joints work best with an annealed copper brazed joint.

Brazing copper to steel hvac.

One of my friends owns a motel and asked me to replace the compressor in his pepsi machine for him. Thank for you. I hear standard 15 silverphos is not a good choice. For joining copper lines we usually use brazing rods that are made out of a copper phosphorous combination.

The braze is what is melted by the torch to join two metals. 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. 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. My paperback and e book.

I also give some tips on how to braze a copper fitting and ref. 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. In this video i go over the oxy acetylene torch tips i use along with the gas pressures i use.

The percentage is the percentage of silver content in the rod. I m a residential hvac guy. Brazing rods look like straightened metal coat hangers and like solder they become stronger as the percentage of silver they contain increases. I see the discharge line is steel brazed or soldered to the copper compressor discharge fitting.

Hot tips for copper brazing. Both oxygen free and oxygen bearing copper can be used for brazing work. The clearance for allowing filler metal penetration in small to medium diameter pipes should not be more than 0 002 to 0 003 inches.