Cutting steel pipes at an angle of 45 degrees. How to cut a pipe at an angle - marking options for round and profile pipes. Techniques for cutting pipes at an angle

When working with construction or plumbing tasks, you need to know how to cut a pipe evenly with a grinder. In this article we will look at quick and easy ways of how to properly cut a pipe with a grinder so that the result is perfect.

Cutting pipe at an angle of 45 and 90 degrees

If you need to cut a pipe at an angle of 45 degrees, which is often required when laying water pipes, heating pipes. Often steel and cast iron pipes are used, which have cylindrical shape. IN installation work Rectangular or profile pipes are used. However, you should cut the pipe correctly with a grinder so that you can easily connect it later. Therefore, you should carefully mark the pipe.

Some craftsmen try to mark the cutting area using a tape measure, but we warn you that the result will most likely be negative. And for positive result, consider the following recommendation from professionals.

Take a sheet of paper or cardboard, preferably A4, fold it diagonally and wrap it around the pipe where you plan to make an even cut. The edges of the paper must be absolutely aligned with each other. And the side of the paper that is closer to the end of the pipe was perpendicular to the axis. Then mark a cutting line in a circle.

If you need to cut exactly at an angle of 90 degrees, then solve the problem quickly using paper or masking tape. Wrap it around the pipe so that the ends match. Make an even mark and saw off.

How to cut a profile pipe evenly?

Experts advise using it when cutting profile pipe square To do this, apply the square to the sides one by one, and turn and apply marks with smooth movements. After the steps, secure the pipe and cut. Prepare yourself a template that will be useful in the future and will save time. It is better to carry out the action with a grinder, so the cut will be smoother.

How to cut cast iron pipe?

When working with cast iron pipe, keep in mind that it is a fragile material. Therefore, we will find a way to cut such metal without damage.

Before starting work, make notes for the cut, as you would when working with steel pipes. Submit wooden beam for support. Run a grinder around the circumference of the pipe, making small cuts. Then take the chisels, insert them into the groove and hit them hard with a hammer. Please note that Bakelite-based cutting discs are used to cut cast iron pipes.

If you don’t have a grinder at hand to cut a cast-iron sewer pipe or other purposes, use a hacksaw, chisels or special pipe cutters.

How to cut a gas pipe?

Cutting a gas pipe is a dangerous action, so it is best to leave it to professionals. But if you are confident in your abilities, then use a grinder, welding, hacksaw, or gas welding to cut metal.

Trimming instructions:

  • Before work, turn off the gas supply riser. Then release the rest of the gas from the pipe. To do this, light the gas in the burners and wait for it to go out.
  • After these steps, cut. Using welding method, metal base burns on exposure high temperature. The result is fast and effective. But remember that for pruning or rooting gas pipes Again, experience is needed.

Methods for cutting large diameter pipes

For cutting pipes large diameter, for example, sewerage, there are a number of reliable tools. Next, let's look at some of them in detail:

  • The grinder is inexpensive and affordable option, but is considered not the safest to work with such materials. If you decide to use this method, be careful and use protective equipment.
  • A roller machine (pipe cutter) is a tool adapted for such manipulations. The device is attached and material removal begins. The clamping force is adjusted using mechanical devices. It is important to note that machine models differ in shape, so before use, consider the size relationship with the pipe.
  • Gas cutting is the most popular option for cutting larger diameter pipes, sheet metal. The cut occurs due to the action of a high intensity flame, the metal melts and leaves the cut zone with a gas flow. This method is convenient and effective.

How to cut a pipe lengthwise correctly?

A quick way to cut a pipe lengthwise using a grinder:

  • Pay main attention to the markings.
  • For this case, use painting thread, which is widely used when marking walls.
  • Before starting work, secure the pipe and, using small movements, carefully saw the pipe.
  • It’s better not to rush, but delicately and slowly process the parts of the pipe, so that the cutting disc does not jump off the marking lines. Remember safety precautions.

How to cut thin-walled pipes?

Thin-walled pipes are made of non-ferrous metals: aluminum, copper. Such work should be done delicately, as there is a high probability of deformation of the material. For cutting, fillers such as sand are used. Actions can be carried out using a grinder or a special machine.

To summarize, we emphasize that cutting metal pipes The process is complex, but every willing master can strengthen it. Using the advice of professionals, you can easily cope with cutting pipes of various sizes and materials. Also, do not forget to process the edges of the pipes after cutting with a file or sandpaper. And the most important thing to remember when starting such actions is safety precautions. When starting work, wear a special suit (casing), mask or goggles closed type. Your hands should also be reliably protected from sparks, so use thick gloves.

Installation of systems often requires painstaking preparation. In particular, pipes need to be cut required size. Sometimes it becomes necessary to cut them at an angle. The angle must be accurate, otherwise it will be impossible to install the system correctly. The welding line will be disrupted, which will reduce the quality of the structure. In this article we will look at how to cut a pipe at 45 degrees.

Tools and materials

In order to cut the structure at 45 degrees, you will need to buy the following tools and materials:

  • Paper;
  • Container with water;
  • Construction tape;
  • Regular tape;
  • Mark;
  • Scissors;
  • PC and program that allows you to create structural designs;
  • Lathe unit;
  • Gas flame tool;
  • Tool for cutting structures;
  • Welding tool;
  • Hacksaw for metal surfaces;
  • Bulgarian.

Completing of the work

What to do if you need to cut a pipe at 45 degrees? First of all, you will need a square-shaped sheet. It folds diagonally. The structure is then placed into it. The edges of the diagonals must touch. The smaller side of the sheet makes it clear where the 45 degree line is located. It needs to be drawn with chalk or core.

What to do if the pipe diameter is small? To do this, take a deep container with water. A pipe is placed into it at the required slope (it is calculated before starting work). The line on the boundary of the dry part of the structure allows you to understand where you need to cut the structure at 45 degrees. The line, as in the first case, should be drawn with chalk or core.

You can also use masking tape for these purposes. It is better if it is narrow. The method is good in cases where the structure is long and needs to be divided in the middle. Masking tape is applied at the required slope. If it was glued incorrectly, it can be easily re-glued. To ensure quality work, it is recommended to apply 2-3 layers of tape to the pipe.

You can try a more complex method that guarantees the most accurate results. It requires a PC and an installed program to perform developments or drawings. First, a drawing is made. The template indicates the dimensions of the structure's circumference and slope. The scan can be done without a special program, using OST 38-43-81. The template is then printed on a printer. The number of sheets used is determined based on need. The drawing is cut out and taped. Then it is brought to the structure, and the places for the cut are drawn along the lines.

After the line has been drawn using any of the methods presented above, you can cut the pipe at 45 degrees. To do this, it is recommended to use a turning tool. It allows for a smooth and precise cut. If flame tools or welding are used, experience is required for quality work. Otherwise, the cut will be uneven. If work is carried out with a large number of structures, it is better to use a grinder or tools for cutting pipes. If no professional tool If you don't have it on hand, you can use a hacksaw for metal surfaces.

Before cutting the pipe at 45 degrees, we recommend that you view useful information materials: photos and videos.

At least once, you have wondered how to cut a pipe evenly at 45 or 90 degrees. Either along or across. We give answers to these questions.

Quite often when performing various construction or repair work there is a need to cut the pipe. This could be plumbing work, laying pipelines or installing heating systems, but in any case it is necessary to know how to cut a pipe evenly. Some features of performing this task will be discussed further.

One of the particular examples similar situation is the need to cut the metal pipe at an angle of 45 degrees. Such cutting of material is often required when laying water pipes or heating systems. In this case, you have to deal with steel pipes. For these purposes, conventional cylindrical pipes are usually used. If we are talking about the installation of some kind of metal structures, then profile pipes of rectangular or square cross-section are more often used. The main problem here is that in order for the elements to be connected to coincide, the cut must be as smooth as possible, which means that especially close attention should be paid to marking the material.

In cases where cutting at an angle is required, a simple square sheet of paper can be used as a marking template. It must be folded strictly diagonally, and then wrapped around the pipe with the template. In this case, it is necessary to carefully ensure that the side of the sheet, which is located closer to the end of the pipe, is perpendicular to its central axis. Next, using marking material, a series of dotted lines is applied and after the marking is completed along the entire circumference, the template can be removed.

If you have to cut a profile pipe, then it is advisable to make a special template from the same pipe, but with a larger cross-section. In this case, you will only have to use the measuring devices once. To apply markings you will need to use a protractor or a construction square. After sawing off the template, the pipes to be cut can simply be inserted into it and marked. This approach will significantly save work time and cutting a profile pipe at 45 degrees will be convenient.

As for what to use when carrying out work, you should choose the most suitable and familiar one. It could be simple hacksaw for metal, and a grinder with a cutting disc installed.

90 degree cutting

When the need arises to cut at 90 degrees, the situation is even simpler. In the case of cylindrical elements, you can use the same sheet of paper that is used to wrap the pipe as a template. It is important to ensure that the edge of the sheet is smooth and matches the entire circumference. After marking is applied, the element to be cut is fixed and the cut is made.

The video shows the process of cutting a pipe at 90 degrees.

How to cut a profile pipe evenly

You can cut a profile pipe in much the same way, but here it will be easier to use a square. The device is applied to each side in turn, for which the element to be cut will need to be rotated, and markings are applied. Next, the pipe must be secured firmly and work can begin.

Any material can be used for sawing suitable tool. If you have to cut a lot of pipes, then it is advisable to make full-fledged templates from scraps. In this case, measuring and marking work will have to be done only once.

Large diameter pipe cutting

When it is necessary to cut a large diameter pipe, you can use whole line special devices and tools. This may be necessary if, for example, a pipeline needs to be repaired.

  • Bulgarian. The use of an angle grinder is justified from the point of view of the availability of tools and the comparative cheapness of the work. However, you should not count on greater productivity in this case; in addition, carrying out work in this way is associated with considerable risk.
  • Roller machine. Such devices are also often called pipe cutters. In essence, such a device is the same grinder, but more suitable for this type of work. The machine includes a special frame where the element to be cut is fixed, as well as a holder with installed cutting rollers, which do the actual work. It is important to understand that each machine must be purchased under specific tasks, that is, according to the size of the pipes.
  • Gas cutting. This option is most often used when working with large diameters. Cutting is carried out due to the action of a high-intensity flame, and the waste produced is blown away by gas pressure. The method can be considered the most practical and effective.

There are other options for accomplishing the task, such as using plasma, waterjet or laser cutting, however, in private use they are practically not used.

How to cut a cast iron pipe

If the pipe is made of cast iron, then in order to cut it smoothly you will have to apply certain knowledge. The fact is that this material is characterized by high fragility, which means that before cutting such a pipe, you need to determine an algorithm of actions.
  • We mark in the same way as steel pipes.
  • At the cutting site, you need to place a wooden beam as a support.
  • Next you need to make a cut of a few millimeters around the entire circumference.
  • After this, a chisel is inserted into the groove and a sharp and strong blow must be applied with a hammer.

As a result, it will split along the line, forming a fairly even cut area, which can be further processed if necessary.

How to cut lengthwise

Another frequently asked question is how to evenly cut a pipe lengthwise with a grinder. Here the algorithm of actions will be approximately the same as for transverse cutting. It is important to pay attention to marking. You can, for example, use painting thread, which is usually used when marking walls. In this case, it is necessary to firmly fix the pipe. The sawing process itself must be done carefully and slowly, since when sawing long elements there is a high probability of the cutting disc slipping from the marking line.

How to cut thin-walled pipes

Another type of pipe is thin-walled products. They are usually made from non-ferrous metals such as aluminum or copper. Cutting thin-walled pipes is more difficult, since the probability of element deformation is high. In this case, you can use some kind of filler, such as sifted sand. As a tool, you can use a grinder, a hacksaw or a special machine. It all depends on the specific situation.

Cutting metal pipes is a rather labor-intensive, but completely do-it-yourself process. At the same time, working with round pipes, are not fundamentally different from cutting a profile pipe. The main thing to remember is that when performing work you must follow safety rules.

When installing a pipeline, quite often you have to cut the pipe at an angle. Moreover, the angle should have exactly the degree that is needed for the structure. If the angle is made incorrectly, it is impossible to produce exactly the dimensions of the pipeline that were supposed to be made. For example, the pipe will rotate 45 degrees during installation, therefore, you need to know how to cut the pipe at 45 degrees. To do this we need marking tools, a grinder or a hacksaw.

Marking using a sheet of paper

One of the most simple ways resides in marking the corner using a sheet of paper. We fold the square sheet strictly diagonally. We take the pipe and wrap it with a folded page so that the edges of the diagonals are opposite each other. So, on the smaller side of the page we have an angle of 45 degrees. We take any marking tool and mark the location of the future pipe cut along the page line. To prevent the markings from being accidentally erased, you can use narrow tape. This method marking is convenient for a long pipe of enormous diameter, and the cut point of which is somewhere in the middle.

Using a water container


What should we do if we are dealing with a small-diameter pipe, and we need to cut the pipe at an angle somewhere near the edge? A deep container filled with water will come to the rescue. Before you start working, you need to calculate the angle of inclination and make a mark on the container. Then all we have to do is carefully lower the edge of the pipe into the water and tilt it towards the mark on the container. We remove the pipe, mark the line of contact with the water, and boldly cut along the markings. This method is optimal when marking a huge number of pipes. Ready template from a container of water will speed up the process of our work.

Computer program to help


I would also like to consider the markup method using computer program. This is a super complicated method for those who are not used to working with a computer. It requires knowledge of a PC, programs for developments and drawings. We begin work by making a drawing indicating the size of the circle and the slope. We make a so-called virtual template.


After this, we print the image on a sheet of paper using a printer. The larger the diameter of the pipe, the more pages with markings there will be. Using scissors, we cut out all parts of the drawing and, using tape, glue them together. The finished template is applied to the pipe, and we make markings along the edge of the paper. This marking method is considered one of the most correct. If your computer does not have such programs, you can use the Internet. It is possible to download a pattern for marking on the Internet. In addition, you need to print it on a printer and cut it out. We wrap the finished pattern around the pipe and make markings.

If the pipe is profiled


But, for example, we have a profile pipe, not a round one. Manual marking of a profile pipe can lead to a huge error. The best way out of this situation would be to make a template from the same profile of a larger diameter. Take a small piece of profile pipe and use a protractor to mark an angle of 45 degrees. We cut along the markings with a grinder and grind the edges so as not to get hurt by the burrs while working. Then all we have to do is insert a profile of a smaller diameter into the template and, having made markings, cut it off.

In this article we looked at how to cut a pipe at 45 degrees. Using one of the methods listed above, mark and make a cut. For a more even cut, it is better to use a grinder. When cutting by welding, experience is required, otherwise the cuts will end up with unevenness. As a last resort, you can use a hacksaw. Currently available for sale a large number of various devices for cutting pipes at an angle, but their acquisition requires extra costs. It’s easier and cheaper to make a template for yourself once and use it as needed.

Video

That is why the video will show you how to cut a pipe at an angle of 45 or 90 degrees using a computer program.

This tool is a profile in the form of an inverted letter P. There are slots on the sides for sawing at an angle of 45, 60 and 90 degrees. More complex corner templates or miter boxes have fixtures for alignment different angles sawing.

For an inexperienced master the best option will be the purchase of a ready-made miter box in hardware store. At home, it can be made from three planed boards or plywood.

The tool can be assembled by fastening pre-prepared parts together. The corner template box must be secured using wood glue or screws. The side walls of the miter box must be strictly parallel to one another. Horizontal beam should create a strict perpendicular to the sides.

Step 3: we mark slots at different angles to cut laminate, trim, etc.

The application of the slots will affect the accuracy of the work performed in the future. Therefore, this process must be approached with special care. It is advisable to make cuts using the same hacksaw that will be used to perform the work.

Step 4: preparing the material to be cut at an angle of 45 degrees

It is necessary to secure the finished corner template on the desktop using a clamp. Next, markings for the future cut should be applied to the workpiece. Next, you need to align the workpiece with the 45-degree slot inside the miter box and press firmly.

The hacksaw must be inserted into the corresponding grooves of the corner template and cut the workpiece. The grooves will limit the movements of the saw and the cut will be carried out in the desired direction.

Subtleties of working with a miter box and various materials

When sawing elements such as baseboards, it is not always necessary to make a 90-degree cut. After all, the walls in the room may be uneven. Before sawing the baseboard, it is necessary to adjust the angle of the cut.

Thus, the article described and characterized the sawing process wooden materials using a miter box.