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Brazing Copper with Mapp Gas – Process

The Basics of Brazing Copper with Mapp Gas

Brazing is one of the best techniques available if you want to join copper together. It’s a simple process that can be completed with a torch and some mapp gas, but there are still a few steps you should take to ensure that your brazing job looks professional and produces results that will last. Let’s look at the basics of brazing copper with mapp gas.



Brazing copper with mapp gas is a popular method for constructing parts out of copper because mapp gas offers numerous advantages and produces minimal byproducts. Brazing with mapp gas is more efficient than other methods, as the temperature required to initiate the welding process is lower at the same time providing a stronger join than other methods. This makes navigating tight angles and difficult bends easier, perfect for plumbing or other construction projects that require using seamless piping. Mapp gas also brazes cleaner due to its lack of moisture when compared to acetylene, meaning there will be almost zero corrosion and no issues with weakening joint strength over time.

What is mapp gas?

Mapp Gas is a fuel primarily used in the industrial welding sector. It’s composed of a blend of three gases, including methylacetylene-propadiene (MAPP), propane and hydrogen. MAPP gas provides strong and fast arcs during shielding gas welding. What makes it stand out from other fuels is its ability to burn hotter than alternative fuels at 3,730 degrees Fahrenheit which makes it ideal for soldering or brazing metals such as steel, stainless steel and aluminum. In addition, MAPP Gas has a relatively low sulfur content compared to alternatives which helps to prevent corrosion from occurring on the welding surface. Though overall use has been declining in recent years due to other alternative fuel sources entering the market, MAPP Gas still remains one of the most preferred sources for welding professionals in certain industries.


Right Equipment

Before you start brazing, make sure you have all the right equipment on hand. You’ll need a mapp gas torch and an oxygen tank (or air compressor). It’s also important to wear the appropriate protective gear—like leather gloves, safety glasses, and long-sleeved clothing—to protect yourself from any potential hazards. Make sure your work area is clean and debris-free for optimal safety.

Preparing the Metal

Next, it’s time to prepare the metal. Start by cleaning both surfaces using steel wool or sandpaper so that nothing stands between them when they are joined together in their final form. This will help ensure a strong bond between them once they are brazed together. Once they’re clean, set up your materials so that they are ready for joining as soon as possible after heating.

Lighting Your Torch

Now it’s time to light your torch; this is where mapp gas comes in handy! Connect your mapp gas tank to your torch and ensure it is securely fastened before lighting it. Be careful not to point the flame directly at yourself or anyone else in your work area, as this can pose serious danger for everyone involved! Once lit, adjust the flame until it reaches an optimal temperature for brazing copper—around 1,300 degrees Fahrenheit (700 degrees Celsius).

    • Brazing is a process in which two pieces of metal are joined together by melting and flowing a filler metal into the joint.
    • Copper is a soft metal that is often used in jewelry and electrical applications.
    • Mapp gas is a type of fuel gas that is commonly used for brazing and soldering.
    • The mapp gas flame is hotter than the oxygen-acetylene flame, making it ideal for brazing copper.
    • When brazing copper, it is important to use a flux to prevent the copper from oxidizing




Brazing copper with mapp gas is relatively straightforward if you follow these basic steps! With some practice and patience, you can produce high-quality results every time. Just remember to wear protective gear, light your torch properly, prepare the metal correctly before joining them together, and adjust the flame temperature correctly while working in a safe space at all times! Brazing copper with mapp gas is easy when done correctly – good luck!

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