Is argon a high pressure gas?
Argon is used primarily for applications such as arc welding, steel making, heat-treating and electronics manufacturing. Available in high-pressure and liquid cylinders, as well as MicroBulk and bulk deliveries.
How long does a tank of argon last?
Your flow rate is usually set from 10-20 cfh which on average if you had a 250 cf bottle would last for 10-20 hours of welding non stop. That would work out to about 2-4 days of serious welding.

How big of an argon tank do I need?
Well, that will depend on your flow rate, which is typically 10 – 40 cubic feet per hour (“cfh”), depending on the work you are doing. A higher flow rate maintains shielding gas in high winds. Many welders find at least 20 cfh is needed, even with very little wind.
What’s the best gas for MIG welding?
argon
A 75/25 argon and CO2 blend is typically considered to be the best overall option for MIG welding, so that’s our top recommendation at Vern Lewis Welding Supply. A “tri-mix” of helium, argon, and CO2 is also sometimes used.
What gas do you weld aluminum with?
A – There are two shielding gases commonly used for arc welding aluminum, and these are argon and helium. These gases are used as pure argon, pure helium and various mixtures of both argon and helium. Excellent welds are often produced using pure argon as a shielding gas.

Can anyone buy argon?
Argon gas cylinders are considered the most expensive, with prices going up to $350 for a new cylinder. This is due to the cost of mining and collecting the gas. Buying one large cylinder is more economical than exchanging several small ones.
Is CO2 cheaper than argon?
Active gases are used for Mig Welding most metals (except Aluminium and Mig Brazing, where pure Argon is used). Co2 is the lowest cost of the Active Gases, but is far from the best. Co2 produces a cooler, coarser, more spattery arc and a marginally harder weld.