Flame Cutting Services

Flame cutting is ideal for cutting thick steel plates in situations where plasma cutting thickness limitations are surpassed and the method cannot perform anymore.

Fractory’s oxy-fuel cutting services will ensure your growing needs never outpace your production capabilities. Our Project Engineers are ready to assist in planning and execution, making certain your projects are completed cost-efficiently and up to high standards.


Maximum material thickness
Maximum material thickness
Carbon steel ≤150 mm
Cutting area
Cutting area Up to 12000 x 3000 mm

Get your flame cutting quote in less than 48 hours

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Manufacturing for 2500+ Businesses

Why Order Gas Cutting From Fractory?

  • Scale your production without switching suppliers, we can handle single orders upwards of 2 million pounds.
  • Discuss your oxy-fuel cutting project with Fractory’s engineers for cost-efficient solutions.
  • Fractory handles everything from quoting to delivery, including quality control.
  • A single point of contact simplifies project management, freeing up time for value-added activities.
  • Quick quotes and lead times.

Our Manufacturing

Fractory uses CNC machines that have flame cutting torches. Using gas cutting technology, we can cut steel plates with a thickness of 10…150 mm. All oxy-fuel cutting is carried out following quality classification EN ISO 9013.

Although it is generally advised to turn to plasma cutting when facing thick materials, flame cutting service is essential for thicknesses over 100 mm and is quite often preferred for materials that are about 50mm thick already. It is important to note though, that oxy-fuel cutting involves the oxidisation process. Therefore, it limits the possibilities of the method to ferrous metals only.

What Is Flame Cutting?

Oxy acetylene cutting is known by many names, such as oxy cutting, oxy-fuel cutting, gas cutting or flame cutting. It is a process where fuel gases and pure oxygen are used for cutting.

Flame cutting uses pre-heating. First, the flame is used to heat up a spot on the metal. Then a high-pressure stream of pure oxygen is directed towards this spot. Hitting the heated spot ignites the oxygen which, in turn, cuts the metal. The cutting flame temperatures rise up to 3500°C.

The cutting torch usually has a central hole and some more placed around it. The holes around the central jet guide oxygen and acetylene onto the workpiece to preheat it. The central jet is for oxygen only and provides the final cutting gas.

Flame cutting is excellent for cutting steel. The reason why it only works well with steel is related to the chemical reactions taking place. When the metal melts, it combines with oxide to form iron oxide. This makes the cut possible.

Therefore, it is a good option when working with ferrous metals but is pretty much unusable with aluminium or even stainless steel. Aluminium oxide has a higher melting temperature than iron oxide. This is why it is not usable there. Stainless steel, on the other hand, is actually used for those non-oxidising qualities, making these metals also unsuitable.

For these aforementioned reasons, it is necessary to opt for an alternative cutting method when cutting thick plates from materials other than carbon steel. A viable alternative for thick plates is waterjet cutting.

Advantages of Oxy-Acetylene Cutting

  • Cuts thick materials – This is by far the biggest advantage of using a flame cutting service. It enables the cutting of steel plates up to a thickness of 150 mm.
  • Portability – It does not require primary power, nor compressed air. Therefore, it is easily portable. The 15 kg set lets you cut metal pretty much anywhere, making it a solution for on-site welding and cutting jobs.
  • Cutting speed – One of the advantages of the oxy acetylene cutting service is its quickness. It’s especially evident for steel plates with a thickness of over 30 mm. Although plasma cutting is also considered a speedy option, oxy cutting edges it with bigger thicknesses and the gap widens further with the increase of dimensions.
  • Variety of operations – Oxy-fuel torches are not suitable only for a cutting process. Some of the other executable operations include welding of ferrous metals, heat treating, heat shaping, riser cutting and brazing.

Online Gas Cutting

While our CNC machining, bending and laser cutting quotes are automated on the platform, flame cutting jobs still need manual reviewing.

If you are looking to get some thick metal parts manufactured, send us a request for quote or upload your CAD files to the platform and our engineers will contact you in 48 hours.

Oxyfuel Cutting FAQ

What fuel gases do you use?

We primarily use acetylene but other gases like propylene and propane are also available.

What role does oxygen play in the cutting process?

Oxygen and fuel gas are combined in order to provide the necessary elements for heating the metal.

The cutting head has several holes where the gases flow out. First, a combination of oxygen and fuel gas comes out of the surrounding holes to preheat the metal.

Then, an oxygen jet is directed onto the workpiece via a central oxygen valve. The metal oxidises and the pressurised jet blows away the slag.

How big is the heat affected zone?

The heat affected zone depends on the fuel gas and cutting speed. Still, compared to other thermal cutting methods, the area is larger.

What is the quality?

The angular deviation of the cut is actually smaller when comparing it to plasma cutting for example. At the same time, the edge is rougher and may need post-treatment, depending on the quality requirements.

What are the material requirements?

Oxy fuel cutting is only available for ferrous metals. Low-carbon steels make up the bulk of the work but wrought iron is also suitable.

Do you deliver to my address?

Yes, Fractory offers UK-wide delivery for all orders.

We deliver your parts straight to your selected address. Fractory takes care of transportation and delivers your parts straight to your selected address, so you can focus on the engineering side of things.

Let us ease your workload! Order metal fabrication from Fractory and experience the benefits yourself: 1-1 engineering support, payment terms for companies, a single point of contact, competitive pricing, on-time deliveries and quality control.
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