Frequently Asked Questions About Argon Cylinders
Is it cheaper to buy an argon cylinder or rent one from a welding supply store?
For long-term use, buying is cheaper. Rental fees of to per month add up quickly. A purchased cylinder pays for itself within a year, and you can swap it for a full one at any supplier without being locked into a lease agreement.
What is the real difference between a 20 CF and a 125 CF argon cylinder for TIG welding?
A 20 CF cylinder (5-inch diameter, 18 inches tall) is portable enough for small jobs and tight spaces but lasts only about 30 minutes of continuous TIG welding at 15 CFH. A 125 CF tank (7-inch diameter, 46 inches tall) provides three hours or more of welding time, making it the better choice for regular use.
Why does my brand new argon cylinder ship empty?
Federal hazardous materials regulations prohibit shipping full compressed gas cylinders via standard parcel carriers. Every new tank arrives empty and must be filled at a local welding gas supplier. Some online sellers offer “full” cylinders, but those require specialized hazmat shipping and are often more expensive.
Final Thoughts: The Verdict
For most home welders and small shops, the best argon gas cylinder winner is the 80 cu ft Steel Inert Gas Cylinder because it delivers the ideal balance of capacity, portability, and price. If you need the convenience of arriving full and ready to use, grab the 40 cu/ft Weldfabulous Argon Cylinder. And for mobile work where space is at a premium, nothing beats the 20 cu ft Steel Argon Cylinder.