Cut steel pipe - what can you use?


When working in a situation where you have to cut a steel pipe, good advice is often expensive. Which tools are suitable for sawing through and what to look for when cutting through a steel pipe, read here.

Saw steel

Steel is a very hard material that always needs suitable tools for machining. Attention should also be paid to the accuracy of the cut and the resulting edges.

Pipes that you want to connect later, must be separated in any case professionally. The quality of the welding edge later also determines the quality and durability of the connection.

Typical mistakes when cutting steel pipes

  • Cut edges are sloping
  • The tube gets a strong indentation to the inner edge
  • the pipe end is deformed by the cutting process
  • the tube is deformed at another place (eg due to improper attachment when cutting)
  • Hairline cracks (occur very often)

Even solder joints can not completely fill the solder gap in an improperly separated tube, resulting in a defective solder joint, which is often not noticed at first.

deburring

After cutting through the pipe, the cutting edge must always be deburred very cleanly. External and internal burrs can be created by cutting - both must be removed. For inside burrs you have to use special inside burrs.

Tools for separating

You can use different tools to cut steel pipes:

  • Hand hacksaw
  • Miter saw with special metal saw blade
  • so-called "pipe cutters" for steel or stainless steel
  • Kaltkreissäge
  • band saw
  • special electric pipe saws

Hand hacksaw

This is certainly the cheapest option - but it needs a lot of patience. Really straight cuts, if you do not have a lot of skill, can also be very difficult. This then requires correspondingly elaborate reworking on the cutting edge.

Miter saw with special metal saw blade

Here, although the cut through the guide of the saw is usually very straight, the restrictions that apply to the hand saw, apply here too. It takes correspondingly powerful saw blades and a lot of time.

So-called "pipe cutters" for steel or stainless steel

They are the professional tool in the installation industry. The simplest variants can still be used for very thin-walled steel tubes - usually up to an outer tube diameter of up to 25 mm (up to 1 "tubes). In terms of price, these tools are only slightly more expensive than a hand-held metal saw. However, they are not suitable for thick-walled steel pipes.

Kaltkreissäge

Cold circular saws are certainly the best and cleanest way to cut through thicker walled pipes. However, since these are already professional tools, you even have to reckon with the simple variants of prices from around 600 EUR upwards.

band saw

Band saws are also a professional tool that is ideal for cutting pipes. The prices are much cheaper here than with a cold circular saw, as a rule you can expect good equipment for about half the price (from about 300 EUR).

Special electric pipe saws

There are very professional electric pipe saws that are clamped as a whole on a pipe, and then cut it at the desired location. This allows pipes to be separated between 3 "and 14" (up to 360 mm pipe diameter). Dichroic pipes with wall thicknesses of up to 38 mm can also be separated. However, the price is already very high at around 2,000 EUR for such special equipment.

Tips & Tricks

Tubes belong technically and in DIN also to the steel profiles. This means that all properties and dimensions are always standardized and can be seen in the respective DIN.


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