Gas & cylinders
Rentals, fills, hydrostatic testing and delivery from people who weld, not a call center.
What should I run?
Pick your job and we'll point you to a starting gas.
Argon + CO2 (C25)
The everyday shop mix. Smooth arc and less spatter than straight CO2. Bring a budget and we can compare it with CO2.
Gases on hand
| Gas | Common use | Safety |
|---|---|---|
| Argon | TIG welding on most metals, MIG on aluminum | Safety sheet |
| Argon + CO2 (C25) | MIG welding mild steel with less spatter | Safety sheet |
| Carbon dioxide (CO2) | MIG on mild steel at a lower cost per fill | Safety sheet |
| Helium | Added heat for thick aluminum and copper | Safety sheet |
| Oxygen | Cutting, brazing and welding with a fuel gas | Safety sheet |
| Acetylene | Cutting, brazing, heating and gas welding | Safety sheet |
| Propylene | Cutting and heating fuel | Safety sheet |
| Nitrogen | Purging and pressure testing | Safety sheet |
| Propane | Heating and fuel gas |
Cylinder sizes
Letter names vary between suppliers, so go by the cubic feet. Bring your cylinder or call and we'll help you match it.
| Size | Capacity | Good for |
|---|---|---|
| Q | 60 cu ft | Light or occasional shop use |
| R | 80 cu ft | Mobile rigs and field work |
| K | 220 cu ft | Regular shop welding |
| T | 330 cu ft | Heavy use and production |
| MC | 10 cu ft acetylene | Small torch kits |
| B | 40 cu ft acetylene | Portable torch sets |
Common questions
Can I just walk in for a fill?
Yes. Stop in any time we're open, Monday through Saturday. If you're bringing several cylinders, call ahead so we can have things ready.
Should I rent a cylinder or own one?
It depends on how often you weld. Rental makes sense for occasional or short-term work, and owning usually wins if you weld every month. We'll run through the best value for your size and gas, and we'll tell you straight.
What does hydrostatic testing do?
It pressure-tests a high-pressure cylinder to prove the steel is still sound. Most common cylinders need a retest every 5 years, and the last test date is stamped on the shoulder. A cylinder past its date shouldn't be refilled, so bring it in and we can test it.
Do you deliver cylinders?
Yes. We offer prompt delivery around the Inland Empire. Call for pricing on your route.
Do you refill CO2 for paintball?
Yes. We refill paintball tanks as well as welding CO2. Bring the tank in.
How do I move a cylinder safely?
Keep the cap on, secure it upright, and never roll it on its side or leave it loose in a truck bed. We stock carts, holders and caps, and we'll help you load up.