Welding is one of the most demanding industrial skills to master, needing a combination of deft control and the right tools to produce quality results. When it comes to mild steel welding, using the right argon 5-2 gas cylinder can be the difference between a perfect weld or a sloppy join.

Argon 5-2 is rising in popularity as a welding mix because of its suitability for mild steel welding, improving the stability of the arc and allowing for higher quality results to happen consistently.

What is an argon 5-2 gas cylinder?

Argon is a non-flammable and non-toxic gas that’s widely used as a shielding agent during many industrial welding processes.

The most common use for argon gas is during tungsten inert gas (TIG) welding and metal inert gas (MIG) welding, creating the weld with consumable and non-consumable electrodes.

Argon gas cylinders are used to protect these processes from atmospheric gases such as oxygen and nitrogen, which can degrade the weld’s quality.

But in small amounts, there’s evidence that oxygen can actually improve the stability of the arc and reduce the tension of the molten metal. This is where an argon 5-2 gas cylinder can make a huge difference to weld quality.

An argon 5-2 gas cylinder mixes 93% argon with 5% carbon dioxide and 2% oxygen, hence the 5-2 title.

When to use argon 5-2 gas cylinders

An argon 5-2 gas cylinder is best used on mild steel welding, particularly with MIG welding equipment and techniques.

However, when it comes to aluminium and stainless steel welding, it’s best to stick with a pure argon gas mix, as the presence of oxygen in the mix can increase the volume of slag for these metals.

Available to buy: argon 5-2 gas cylinder

At Rent Free Gas, we can provide you with a high quality argon 5-2 gas cylinder with exact mixes guaranteeing quality mild steel weld. We also currently supply a pure argon product with 1.8% oxygen for specialist jobs, and can readily supply tailored mixes.

In addition, at Rent Free Gas we sell a wide range of argon 5-2 gas cylinders, from small D cylinders through to large G sized models, so you can own your own equipment.

Buying an argon 5-2 gas cylinder makes sense – why pay rent for something you need to use again and again? With Rent Free Gas, you can refill your tank again and for competitive prices, no rent needed!

Small Cylinder

  • D size Cylinder
  • Volume 1.7m3
  • Height Approx 75cm
  • Diameter 17cm
  • Weight 20kg

Medium Cylinder

  • E size Cylinder
  • Volume 4.0m3
  • Height Approx 105cm
  • Diameter 21cm
  • Weight 39kg

Large Cylinder

  • G size Cylinder
  • Volume8.7m3
  • Height Approx 163cm
  • Diameter 25cm
  • Weight 80kg

DIY First Cylinder

$23000inc GST & delivery
  • Available in all gases

DIY Refill Cylinder

$70INC GSTinc GST & delivery
  • Available in all gases