Cast iron pipes have been used for a long time in plumbing and sewage systems until more modern PVC alternatives became available. In some old buildings, you can still encounter cast iron structures, and sometimes repairs are necessary. In this article, we'll show you how to cut a cast iron pipe correctly.

Using a Chain Vise Pipe Cutter

Step 1. Mark the pipe with chalk.

Step 1

First, mark the spot where you plan to make the cut using chalk. Draw the lines as straight as possible.

Step 2. Secure the pipe with the chain vise cutter.

Step 2

Wrap the pipe with the chain of the vise cutter, trying to lay it as evenly as possible. The more cutting wheels are on the pipe, the easier the cutting will be.

Step 3. Squeeze the cutter handles to let the wheels cut into the metal.

Step 3

Apply firm pressure on the cutter handles to allow the wheels to begin cutting into the metal. You may need to repeat this several times before the pipe is completely cut.

  • If the pipe is not secured, you might need to slightly rotate it during the cutting process.

Step 4. Repeat the cutting process at the marked spots.

Step 4

Using a Hacksaw

Step 1. Install a long blade into the saw and secure it.

Step 1

Insert a long blade into the saw and ensure it is securely fastened. Many blades come with carbide or diamond tips, making them suitable for cutting hard materials.

Step 2. Mark the cutting spots with chalk.

Step 2

Again, mark the cutting spots with chalk, trying to draw straight lines while keeping the pipe steady. It's best if someone helps to support the pipe.

Step 3. Set the saw to a low speed and start cutting.

Step 3

Adjust the saw to a low speed and begin cutting. Avoid applying excessive force to prevent breaking the blade.