Argon, Industrial Grade

Used in the production, processing and fabrication of metals, this industrial grade argon is available either as a compressed gas or as a cryogenic liquid

Ar

Inert to all materials at all temperatures and pressures. Lower thermal conductivity than most other gases. Low ionising potential allows easy formation of a welding arc without reacting with the metal being welded. In cryogenic format, liquid argon is often abbreviated to LAR.

Uses

  • TIG welding stainless steel of all thicknesses
  • MIG and TIG welding of copper and alloys up to 3mm
  • Exclusion of air from contact with metals and alloys in purging and welding processes
  • Plasma cutting

Argon, Industrial Grade — Inert Gas for Welding, Fabrication & Shielding

Argon (Industrial Grade) is an inert, non-flammable compressed gas used widely for welding and metal fabrication, shielding sensitive processes, and protecting reactive materials from atmospheric contamination. Supplied in high-pressure cylinders for New Zealand industry, it delivers stable arc starts, reduced spatter and cleaner welds when used as a primary or balance gas in common shielding mixes.

Typical Uses

  • GTAW/TIG welding (stainless, aluminium, copper alloys): pure argon shielding for clean, controlled arcs and excellent puddle visibility.

  • GMAW/MIG welding: base component in many aluminium and stainless programs; often blended with helium or active components depending on process.

  • Back-purging & inerting: displacement of air in pipework, vessels and gloveboxes to protect weld roots and sensitive components.

  • Metals processing & laboratory support: inert atmosphere for melting, atomising, sintering and general purge applications.

For critical processes requiring specific impurities (O₂, H₂O, THC) at ppm/ppb levels, select specialty or higher-purity grades.

Why Choose Coregas NZ for Argon

  • Local NZ supply & delivery with fast turnaround to fabrication shops and project sites.

  • Reliable cylinder fleet & stewardship—return cylinders for safe refilling and end-of-life processing.

  • Process know-how across welding and industrial applications to help specify the right grade and flow control.

Product Highlights

  • Inert & non-reactive: helps prevent oxidation and nitridation during welding and thermal processing.

  • Clean arc initiation & stability: consistent shielding improves bead appearance and reduces post-weld clean-up.

  • Versatile: use neat for TIG and aluminium MIG, or as the base gas in multi-component blends tailored to your procedure.

Safety & Handling Essentials (Summary)

  • Classification: compressed gas; non-flammable and chemically inert, but can displace oxygen in poorly ventilated areas.

  • Asphyxiation risk: high local concentrations may lead to dizziness, unconsciousness or worse; ensure good ventilation in enclosed spaces.

  • Storage: keep cylinders upright, restrained, dry and well-ventilated, out of direct sun and away from heat.

  • Handling: never drag, drop or roll cylinders; use a rated cylinder trolley; keep valve protection in place when not in use.

  • PPE (typical): safety glasses, leather gloves and safety boots for normal handling; use additional respiratory protection if ventilation is inadequate for confined tasks.

  • Fire: not combustible; if involved in a fire, keep cylinders cool from a protected location and evacuate if cylinders cannot be cooled.

  • Leaks: move the cylinder (only if safe) to a ventilated remote area; do not attempt to repair valves or safety devices yourself.

Transport & Site Logistics (Overview)

  • Transport cylinders secured and upright in a ventilated vehicle compartment; keep valves closed and capped.

  • Brief drivers/contractors on gas hazards and emergency actions; isolate from ignition sources and heavy loose gear.

  • At site, position cylinders where they are protected from traffic, not blocking exits, and accessible for change-outs.

Application Notes for Welders & Fabricators

  • Flow rates: optimise to maintain a stable envelope without turbulence; excessive flow increases gas use and can entrain air.

  • Torch angle & stick-out: keep consistent to avoid pulling air into the shielding zone.

  • Joint prep & cleanliness: remove oxides, oils and moisture to get full benefit from inert shielding.

  • Purge dams for stainless/titanium: use argon back-purging to protect weld roots and prevent sugar/oxidation.

  • Procedure qualification: align shielding gas selection with WPS/PQR requirements and consumable manufacturer data.

FAQs — Argon, Industrial Grade

Product Summary

Gas composition

  • Argon ≥ 99.992%

Compressed gas sizes

UN number: 1006

Download safety data sheet

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Size Product code Volume / m³ Weight (full) / kg Pressure / kPa Outlet connection Availability
D 2.1 14.5 20,000 Type 10 NZ wide
F 5 80 20,000 Type 10 NZ wide
G 10.5 80 20,000 Type 10 NZ wide
14-pack 147 1015 20,000 Type 10 NZ wide
16- pack 240 1544 30,000 Type 10 NZ Wide

Cryogenic liquid sizes

UN number: 1951

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Contact us direct for more information about our bulk and cryogenic liquids range
Additional Details

Physical & chemical properties

Appearance Odour Flammability
AppearanceColourless gas OdourOdourless FlammabilityNon flammable

Hazard class

2.2

Hazard symbol (GHS)

  • Non-flammable non-toxic gas 2.2
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