Shielding gas mixes for MAG welding – Ar/CO2 82/18 (M21), Ar/CO2 92/8 (M20) and Ar/O2 98/2 (M13) – in refillable steel cylinders from 5 to 50 litres and pallets of 12. Other compositions on request.
Which mix for which job
- Ar/CO2 82/18 (M21) – the standard gas for MAG welding of carbon and low-alloy steel: stable arc, low spatter, good penetration. Workshops, body shops, steel construction.
- Ar/CO2 92/8 (M20) – less CO2 for thin sheet and pulsed welding: less spatter and heat input, smooth beads.
- Ar/O2 98/2 (M13) – spray-arc MAG welding of stainless steel: good wetting and bright welds.
Other compositions – argon/CO2 from 98/2 to 80/20, argon/O2 96/4 and 95/5, three-component argon/CO2/O2 mixes, argon/nitrogen – are quoted on request: argon/CO2, argon/O2, argon/CO2/O2 and custom mixes.
Sizes and content
| Cylinder | Ar/CO2 82/18 (M21) | Ar/CO2 92/8 (M20) | Ar/O2 98/2 (M13) | Delivery |
|---|---|---|---|---|
| 5 L | 1.2 m³ | – | – | Parcel |
| 8 L | 1.9 m³ | – | – | UPS (ADR) |
| 10 L | 2.3 m³ | 2.2 m³ | 2.1 m³ | UPS (ADR) |
| 13.4 L | 3.1 m³ | – | – | UPS (ADR) |
| 20 L | 4.7 m³ | 4.4 m³ | 4.3 m³ | Truck freight (ADR) |
| 27 L | 6.3 m³ | – | – | Truck freight (ADR) |
| 30 L | 7 m³ | – | – | Truck freight (ADR) |
| 40 L | 9.4 m³ | 8.9 m³ | 8.5 m³ | Truck freight (ADR) |
| 50 L | 11.7 m³ | 11.1 m³ | 10.7 m³ | Truck freight (ADR) |
| Pallet of 12 × 50 L | 12 × 11.7 m³ | 12 × 11.1 m³ | 12 × 10.7 m³ | Truck freight (ADR) |
m³ = gas volume at 1 bar and 15 °C from a 200 bar filling.
New cylinder, exchange or refill
- New cylinder – you buy the cylinder: no rent, no deposit.
- Exchange – send us the empty cylinder you bought from us and get a full one back.
- Refill your own cylinder – we fill it and send it back; it needs a valid test date and a valve for this gas.
Exchange and refill are ordered under Refill & exchange.
Grade, valve and colour code
- Argon 82 % / CO2 18 % (EN ISO 14175 M21)
- Argon 92 % / CO2 8 % (EN ISO 14175 M20)
- Argon 98 % / O2 2 % (EN ISO 14175 M13)
Valve outlet: W21.8 × 1/14" (DIN 477 No. 6) · UN number: UN 1956 · Colour code (EN 1089-3): RAL 6001 emerald green shoulder (main gas argon), grey body.
Delivery
We ship from our warehouse in Łódź, Poland, to the whole EU. Cylinders up to 5 L travel as parcels, 8 to 13.4 L with UPS as dangerous goods (ADR), 20 L and larger and pallets by truck freight. If the cart cannot price the freight to your address, you order without paying and we e-mail the freight cost within 1 working day – you pay only then.
Business account: volume prices from 4 cylinders and invoices without VAT for EU companies with a valid VAT number. Business customers










