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Mon – Fri: 08:00am – 04:00pm

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Helium Rentals, Propane Refills, and More

City Welding

Gases and their Uses

Helium Uses:

  • PROMOTIONAL BALLOONS
  • PARTY BALLOONS
  • WEATHER BALLOONS
  • WELDING APPLICATIONS
we offer reasonably priced helium rentals or helium tank refills.

CO2 Uses:

  • BEVERAGE
  • AQUARIUM
  • POOLS
carbon dioxide refills or new cylinder purchase walk-in speedy service next-day delivery available!

Propane Uses:

  • BARBEQUE
  • TEMPORARY HEAT
  • PLUMBER POTS
  • WEED BURNERS
  • ICE-MELTING
  • WELDING MACHINES
  • FLAME CUTTING
  • OXY-PROPANE TORCH
  • FORKLIFT
  • FLOOR-CLEANING MACHINES
  • ALL PROPANE POWERED
  • ENGINES
small pressure tanks

$109

CO2 Special

New 5# Aluminum Cylinder Full

*WHILE SUPPLIES LAST.
*PRICES SUBJECT TO CHANGE
*plus tax

The Following is a List of Some of the Gases We Sell at our Chicago Welding Supply Store:

Gases Available

Pure Argon

AR, inert, non-flammable. Common applications: TIG (tungsten inert gas) welding process, argon in used for the joining of stainless steel, mild steel, aluminum, nickel and copper alloys. It is also used in the MIG(metal inert gas) welding process for the joining of aluminum.

Carbon Dioxide (CO2)

semi inert, non-flammable. Common applications for CO2 in Chicago include: beverage carbonating, beer dispensing, fire suppression, MIG welding of steel, pipe freezing, the making of "dry Ice", pool water treating, (PH neutralizing), paintball cartridge refilling, and artificial grow environments. Available in industrial grade and special purity scientific grades through research grade 5.5.

Helium

HE, inert, non-flamable. Common applications include: Balloon inflating, Scientific experimentation, MIG and TIG welding applications, HeliOx mixtures for scuba diving applications, inert atmospheres. available in industrial grade and special scientific purity grades 2.9 through grade 5.5 or research purity.

Hydrogen

H2, semi inert, flammable. Common applications include: TIG welding blends, hydrogen welding blends, plasma welding blends, high intensity light manufacturing, heat treating atmospheres, scientific atmospheres and experimentation. Available in industrial grade through special scientific purity grades, research grade 5.5.

Argon Mixes

Common uses for industrial argon mixture include: argon/CO2, 75/25 or C25, 90/10 or C10, 95/5 or C5. these mixes are commonly used for the MIG welding of mild steel and in some cases, stainless steel in the short circuit and modified trasfer methods of filler metal transfer. Argon/oxygen mixtures such as 98/2 (98%AR/2% O2) are used in the spray trasfer method of mild steel filler metal transfer. Argon/hydrogen mixtures such as Argon95% / hydrogen 5% are commonly used in plasma welding. Argon containing 1, 2,3% hydrogen are most commonly used in the tig welding of stainless steel where high travel speeds might be required, such as in robotic automation or automatic stainless tube seam welding.

Oxygen

O2, oxidizer, Common uses for oxygen in Chicago include: oxygen/acetylene welding and cutting, oxygen/propane welding and cutting, oxygen/mapp or propylene welding and cutting, oxygen/hydrogen welding and cutting, laser assist gas, aviators breathing oxygen. Lab/scientific applications. Available in industrial through specialty scientific purity, through 4.3 grade levels.

Nitrogen

N2, semi inert, non-flammable. Common uses include: Nitrogen in mostly an inert molecule that is often used as a high pressure source for pressure testing of parts and equipment, charging of hydraulic accumulators, charging of paintball gun cartridges, air powered pellet and BB rifles, can be used as a laser assist gas for stainless steel or where finer cuts may be desired. it is used in heat treating atmospheres, it is used for its fire suppression properties, it is used as a food fresh preservative atmosphere. It is used for automotive tire filling and shock absorber charging. It has many scientific applications such as gas chromatography. Available in industrial grade through specialy gas scientific purity, " research " or grade 5.5.

Nitrous Oxide

N2O, oxidizer-non-flammable, N2O, Common applications for Nitrous Oxide include: Scientific experimentation, the enhancement or acceleration of combustion in high performance or race car engines.

Propane

C3H8, Common uses include: Oxygen/Propane flame cutting and welding, temporary heat, BBQ grilling, weed burner.

Acetylene

C2H2, flammable. Common uses include: Oxygen/Acetylene flame cutting and welding, flame ionization/ atomic absorption.