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Welding Gas Supplies

Argon, CO2, and Mixes

Welding gases are essential for across the spectrum of welding and cutting applications. The use of gases such as Argon, Carbon Dioxide and various mixtures of gases with minor components added to those two are used as shielding gases. They help to ensure high-quality welds and efficient workflows.

Other gases in our catalogue include Acetylene and Oxygen - for cutting applications. These are less commonly used in the modern era. At one time they were the staple combination for almost all welding and metal cutting before the advent of modern electric arc welding in its various forms. Today oxyacetylene welding tends to be a bit niche. Our range of welding gases just includes the shielding gases for arc welding processes, with the oxy-fuel gases for reserved for cutting.

Shielding gases for TIG and MIG welding

Shielding gases, such as pure Argon gas, Carbon Dioxide (CO2), mixtures of those two and Tri Mix gases containing various amounts of Helium are to prevent air getting at the hot molten metal and chemically degrading the weld. Protecting the weld pool from contamination is the step that allowed welding methods like MIG and TIG to be developed.

These gases are used in Metal Inert Gas and Tungsten Inert Gas welding, to balance the benefits of the individual gases for different techniques in the welding process. Factors such as arc stability, reduced spatter, fluidity of the weld pool and heat transfer all have different effects on improving weld quality. Argon is the best shielding gas but doesn't ionise easily. CO2 ionises fairly easily (allowing the gas to conduct electricity and generate the arc.

Carbon Dioxide also reduces the surface tension of the molten metal, (a bit like soap in water) reducing the tendency of the molten metal to form droplets that then spray out because of the gas pressure. Unfortunately, because the intense heat of the arc dissociates the oxygen and carbon, the weld pool can absorb too much carbon and oxygen causing problems with porous welds, brittleness ad poor fusion of the filler to the sides of the workpieces being joined.

Argon Mixes

Various gas manufacturers have come up with a range of different gas mixtures to try and satisfy the demand for the perfect welding shield gas.  Helium tends to be included in these because it is good at heat transfer, but being very light and bouyant, it escapes the weld area rapidly. The welding gas mixtures attempt to balance these different characteristics to suit the material being welded.

Shop at Weldtech - the UK's  Best Welding Gas Suppliers

Whether you're searching for welding gas supplies near me or specific welding gas suppliers near me, our selection ensures that you have access to the best welding gas supplies in the UK.

We provide MIG & TIG welding gas bottles, and regulators to ensure your equipment runs smoothly.


Brand: Albee Model: ALBEE L11
Rental free gas cylinderIntegrated regulator includedEasy to handle - fully portable11 Litre capacity.For collection only..
£312.00
Ex Tax:£260.00
Brand: Albee Model: ALBEE L11a
Rental free gas cylinderIntegrated regulator includedEasy to handle - fully portable11 Litre capacity.For collection only..
£78.00
Ex Tax:£65.00
Brand: Albee Model: ALBEE L11b
Rental free gas cylinderIntegrated regulator includedEasy to handle - fully portable11 Litre capacity.For collection only..
£312.00
Ex Tax:£260.00
Brand: Albee Model: ALBEE L11c
Rental free gas cylinderIntegrated regulator includedEasy to handle - fully portable11 Litre capacity.For collection only..
£72.00
Ex Tax:£60.00
Brand: Futuris Model: FUT070509
Disposable welding gas cylinderContents 60 Litres..
£19.20
Ex Tax:£16.00
Brand: Futuris Model: FUT070508
Disposable welding gas cylinderContents 60 Litres..
£19.20
Ex Tax:£16.00
Brand: Futuris Model: FUT070512
Disposable welding gas cylinderContents 390 grams..
£19.20
Ex Tax:£16.00
Brand: Gas UK Model: ARG20-15
FOR COLLECTION ONLY.This three component mixture designed for maximum performance and ease of use giving it a high welder acceptance so reducing the instances of weld defects. Ideal for semi automatic, automatic and robotic applications, the gas produces smooth flat welds with a good penetration and..
£300.00
Ex Tax:£250.00
Brand: Gas UK Model: ARD20-15
FOR COLLECTION ONLY.This three component mixture designed for maximum performance and ease of use giving it a high welder acceptance so reducing the instances of weld defects. Ideal for semi automatic, automatic and robotic applications, the gas produces smooth flat welds with a good penetration and..
£102.00
Ex Tax:£85.00
Brand: Gas UK Model: ARG20P
FOR COLLECTION ONLY.Argon is the most common gas for TIG welding both carbon and low alloy steels. Our Argon is best suited for welding low-alloy steels where high-precision joints and excellent surface finish are more important than high productivity. This is because Arc initiation is easy but weld..
£300.00
Ex Tax:£250.00
Brand: Gas UK Model: ARG20P
FOR COLLECTION ONLY.Argon is the most common gas for TIG welding both carbon and low alloy steels. Our Argon is best suited for welding low-alloy steels where high-precision joints and excellent surface finish are more important than high productivity. This is because Arc initiation is easy but weld..
£102.00
Ex Tax:£85.00
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