Copper Pipe Welding Gas

Welders will generally work to a wps or weld procedure specification that will specify the gas for them but in cases where it isn t specified the welders can use purge.

Copper pipe welding gas. When it comes to copper pipe and tubing products grainger s got your back. This guide will show you how to solder copper pipes to ensure there are no leaks in or around your home. Propane works fine it just takes longer which may work to your advantage if you are new to soldering copper and are working on 3 4 or 1 2 pipe. Easy online ordering for the ones who get it done along with 24 7 customer service free technical support more.

Correct weld purging is a key factor in welding copper nickel pipework. Copper pipe is also environmentally friendly since it can be recycled. Compression joint that can be easily remade using cold copper bonding. If the copper is thicker you will need to adjust the gas and amp by applying helium and upping the.

In 10 seconds a fully watertight joint is produced which will flex. In welding copper sheets the heat is conducted away from the welding zone so rapidly that it is difficult to bring the temperature up to the fusion point. The cheap kind is a mapp gas or propane torch that uses a one time use 14 ounce tank you can buy at any hardware store and is also referred to as a turbo torch. Whereas mig welding requires a preheating of 10 100 c and up to 240 amps of power with argon as its shielding gas.

For example in welding copper with thickness of 5mm 0 196 inch tig welding requires a preheating of 50 c as well as shielding gas of argon helium and mix up to 300 amps of power. The instructions here are specific to copper pipe soldering which differs from the welding copper process. The more expensive kind is more bulky and involves two tanks of compressed gas. If you ve ever done any welding this is also a very typical torch you ll use.

The polymer is applied to both pipe and fittings and the two are twisted together. Mapp gas usually a bit more expensive gets much hotter than propane so heats the pipe faster. Cold copper welding requires pipe and fittings to have very close tolerances and this can only be guaranteed with rigid pipe. Depending on if you are using tig tungsten inert gas or mig metal inert gas and the thickness of your copper you will need to adjust the ratio of your gas and temperature.

See further information under tip 2. Back purge gas type tends to be optional subject to experience. Mapp gas comes in a yellow tank and propane comes in a blue tank. Oxygen free copper deoxidized copper rod should be used rather than oxygen bearing copper for gas welded assemblies.