Argon gas

Coregas is one of the largest industrial gases companies manufacturing and distributing argon gas nationwide. We operate the largest air separation unit in the Southern Hemisphere and provide a complete range of compressed gases and cryogenic liquids to meet the needs of Australian industry. We produce both industrial-grade and high-purity gases, backed by over 50 years of technical experience, local support and proven reliability.

Argon is an inert gas, so it is ideal for processes that require a non-reactive atmosphere, such as inerting, blanketing, and as a shielding gas in welding

Industrial and specialty applications

Coregas produces and supplies argon gas in both compressed gas and cryogenic liquid forms (LAR). Available in industrial or laboratory-grade, our argon gas is manufactured to high standards, with guaranteed purity levels as specified in the certificates of conformance for each product.

Our industrial-grade gas, Argon 4.7, is used for MIG and TIG welding applications, purging, plasma cutting, and other industrial applications where an inert shielding gas is required. Argon 5.0 is used for purging, welding, additive manufacturing, and plasma cutting where a higher degree of purity is desirable. It is also used as a carrier gas in gas chromatography.

Coregas provides argon gas for a wide range of operational and research uses, including:

  • Shielding gas for welding — Protects molten metal in MIG and TIG processes from oxidation and contamination
  • Plasma cutting and laser applications — Stabilises high-temperature arcs for precision cutting
  • Gas chromatography and spectroscopy — Serves as a carrier or balancing gas in lab environments
  • Controlled atmosphere packaging — Used in select food and pharmaceutical processes
  • Scientific and industrial purging — Displaces reactive gases before operation
  • Heat treatment and metallurgy — Maintains inert conditions to protect materials during processing

With flexible supply options and a broad distribution network, Coregas delivers argon gas to sectors across Australia and New Zealand, including welding, manufacturing, mining, defence, pharmaceuticals, and research.

As one of the most experienced industrial-grade argon gas suppliers in the region, we’re trusted for our technical expertise, certified quality and commitment to safe, reliable delivery.

Why choose Coregas? 

As a leading argon gas supplier in Australia, we offer gas in various formats and cylinder sizes to meet the needs of different industries, from mobile tradies to high-volume manufacturing plants.

At our state-of-the-art production facility in Port Kembla, New South Wales, we manufacture argon gas using cryogenic distillation. Under highly controlled conditions, this process separates ambient air into its component gases, including nitrogen, oxygen and argon. The result is a stable, inert gas suitable for sensitive industrial and laboratory use.

For pricing details and further information on the argon gas products we manufacture and supply in Australia, please feel free to call, email or to send us a fax at any time.

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Our argon gas range

All Coregas argon gas products meet stringent Australian quality and safety standards. Our Argon 4.7 (99.997%) and Argon 5.0 (99.999%) grades are tested and verified for purity. Whether you’re cutting stainless steel, conducting plasma welding or operating in a cleanroom, our supply meets the high-performance expectations of critical industries.

As a trusted argon gas supplier, we also offer custom solutions, including cylinder packs and microbulk formats. Explore available size options.

In addition to argon gas, Coregas manufactures and supplies a full range of industrial, medical and specialty gases, including acetylene, carbon dioxide, nitrogen, helium, calibration gases, refrigerants and laser gases. These gases are available in multiple purities and formats to support manufacturing, healthcare, hospitality, research, food and beverage applications.

Our services are designed to help customers manage gases safely, efficiently and with confidence. This includes cylinder tracking, bulk and cryogenic supply, delivery and collection, flexible payment support and tailored engineering solutions. We also offer mobile apps and safety training to simplify account management and promote safer gas use across all industries.

Delivery formats and ordering

We understand that not every business has the same requirements. That’s why we offer argon gas in a wide range of delivery formats:

  • Individual cylinders and packs
  • Cryogenic liquid tanks
  • On-site microbulk storage
  • Custom delivery frequencies

Coregas has over 500 distribution partners across Australia and New Zealand. For bulk orders, our fleet of tankers and trucks ensures timely delivery and real-time support. Learn more about our delivery and collection services.

Coregas is one of the few argon gas suppliers equipped to handle international supply if you export Australian-made goods or operate across borders. See our overseas export services for more information.

We make it easy to order argon gas through the method that suits your workflow. You can order via the Coregas website, app, call centre, fax or email. Account holders can also access support and track orders via the online portal.

For full details on payment methods, pricing structures and account setup, speak with our team or visit our contact page.

Have a question about a product?

Contact our professional team for questions about products, pricing, creating an account & more.

FAQs

  • Where can I buy argon gas?

    Customers with an account can purchase direct delivery from Coregas, or through our national depot network. You can also purchase argon gas through our independent distribution partners, including Bunnings for our Trade N Go range. Click here for our store locator.

    As a trusted argon gas supplier, Coregas account customers can choose their preferred method to place an order. Coregas offers multiple ways to order, such as via our website, app, call centre, fax or email.

  • How is argon gas stored?

    Similar to other compressed gases, argon must be stored safely, or there are overpressure risks if exposed to very high temperatures that cause the gas pressure to rise beyond the level of which the cylinders are designed to handle. Accordingly, argon gas cylinder tanks should be stored upright, in a well-ventilated storage area that is dry and cool.

  • How long does a cylinder tank of argon gas last?

    The longevity of a single-cylinder tank will depend on the flow rate. For a flow rate of between 0.5 and 0.7 M³ per hour, you can expect a 10.6m³ cylinder tank to last from 15 to 21 hours. For other flow rates, simply divide the https://www.coregas.com.au/cyl... capacity by the relevant flow rate.

  • Is argon gas heavier than air?

    Yes, as a gas, argon is denser than air and will displace the oxygen present in the air close to the ground. For this reason, it is sometimes used to put out fires in areas where equipment that could be damaged by water or foam extinguishers is present.

  • Can argon gas go bad?

    As an inert gas, argon will not go bad when stored correctly. It should be safe to use in a TIG welding process, gas purge process or other industrial application even after spending a long time in storage.

  • Is argon gas flammable?

    No, argon gas itself is not flammable. Like all compressed gases, argon poses risks if misused, such as asphyxiation in enclosed spaces and cold burns on skin from contact with the liquid form.