How to Cut Cast Iron Pipe

by wpx_admin
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So, you’re ready to tackle that plumbing project yourself? Here’s a helpful guide on how to cut cast iron pipe.

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Cast iron pipe was once a popular choice for indoor plumbing due to its durability and longevity. However, it can be difficult to work with because it is not as easy to cut as other types of pipe. In addition, cutting cast iron pipe produces a lot of dust and debris, so it is important to take proper safety precautions.

There are two main ways to cut cast iron pipe: using a power saw or using a manual cutting tool. Power saws are the quickest and easiest way to cut cast iron pipe, but they can be dangerous if you are not familiar with how to use them. Manual cutting tools take longer but are much safer for inexperienced users.

Before you begin cutting, make sure that you have all of the necessary safety gear, including goggles, gloves, and a dust mask. You will also need a straight edge to guide your cuts. Begin by marking the cast iron pipe where you want to make your cut. Then, use either a power saw or manual cutting tool to cut through the pipe.

If you are using a power saw, start the saw and slowly guide it along the line that you marked on the pipe. Be careful not to apply too much pressure, as this can cause the saw blade to bind in the material. If you are using a manual cutting tool, such as a hacksaw or reciprocating saw, start by making shallow cuts around the circumference of the pipe. Once you have made several shallow cuts, you can then begin making deeper cuts until the entire length of the cast iron pipe has been cut through.

Once you have finished cutting through the cast iron pipe, use a brush or vacuum cleaner to remove any dust or debris from the area. You may also need to use a file or sandpaper to smooth out any rough edges on the cut surface of the pipe.

Tools and Materials

-Cast iron pipe
-Tape measure
-Circular saw with abrasive blade or reciprocating saw with abrasive blade (for cutting curves)
-Bolt cutters (for cutting bolts)
-Hacksaw (for cutting bolts)
-Pipe cutter (for cutting small pipes)
-Portable band saw with an abrasive blade (optional)

Cutting the Pipe

Before cutting the pipe, it’s important to take some safety measures. First, wear gloves to protect your hands from the sharp edges of the pipe. Next, use a tape measure to mark the cut line on the pipe. Once the line is marked, use a hacksaw to cut through the pipe. Be sure to saw slowly and evenly to avoid damaging the pipe.

After the pipe is cut, use a file to smooth out any rough edges. Finally, sand the area around the cut with sandpaper to prepare it for welding.

Deburring the Pipe

After you have made the initial cut, it is important to remove any sharp or jagged edges from the pipe. This process is called deburring and can be accomplished in a few different ways.

The most common method is to use a power tool called a pipe deburring tool. This tool has a cylindrical grinder on one end and a handle on the other. To use it, you simply insert the grinder into the end of the pipe and twist it back and forth until all of the rough edges have been removed.

Another popular method for deburring cast iron pipe is to use a power drill with a grinding attachment. This attachment is usually a small, circular piece of abrasive material that fits onto the end of the drill bit. To use this method, you simply insert the drill bit into the end of the pipe and twist it back and forth while holding the trigger down to activate the grinding action.

Finally, you can also deburr cast iron pipe by using a hand file. This is probably the most tedious method, but it will get the job done if you don’t have access to power tools. To use this method, simply insert the file into the end of the pipe and move it back and forth until all of the rough edges have been removed.

Reaming the Pipe

The first thing you need to do when cutting cast iron pipe is to ream out the inside of the pipe. This will allow the saw blade to get a good grip on the pipe and make a clean cut. You can use a power drill with a high-speed steel bit or a hand reamer. If you are using a power drill, start at a slow speed and increase the speed as you go. Be careful not to overheat the bit. With a hand reamer, start at the end of the pipe and work your way towards the center.


Once you have cut through the cast iron pipe, you will need to file down the rough edges with a metal file. You can then use a PVC pipe cutter to finish cutting the pipe.


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