Welding Gases
Acetylene
| Air
| Carbon Dioxide(C02)
| Helium
Hydrogen | Nitrogen
| Oxygen
| Propane
Argon
Argon (Ar) is a monatomic, chemically
inert gas composing slightly less than 1% of the air. Its gaseous
specific gravity is 1.38 and its boiling point is -302.6 degrees F
(-185.9 degrees C). Argon is colorless, odorless, tasteless,
noncorrosive, nonflammable, and nontoxic. Commercial argon is the
product of cryogenic air separation, where liquefaction and distillation
processes are used to produce a low-purity "crude" argon
product. Oxygen must be removed from the "crude" argon
by combining it with hydrogen to produce water. Then argon is then
purified to form the commercial product.
Straight
argon is generally used as a shielding gas in tig welding while mig
welding is usually best suited to a mixture of argon and CO2
as its shielding gas.
Argon is used primarily for its properties an inert gas in applications
such as arc welding, steelmaking, heat treating, and electronics
manufacturing. It is also widely used as a fill gas
in incandescent and fluorescent lamps. In
its welding application, straight argon is generally used as a shielding
gas in tig welding, while mig welding is usually best suited to a
mixture of argon and CO2 as its
shielding gas.
As
an inert shielding gas, argon provides the most stable arc combined with
the most effective cleaning action. Argon offers welders excellent
control of the welding arc and puddle.
Straight argon is generally used as the shielding gas in tig welding,
while mig welding is usually best suited to a mixture of argon and CO2
as its shielding gas.
| DOT
Name: Argon |
| DOT
Hazard Class: |
|
Nonflammable
Gas (2.2) |
| DOT
Label: |
|
Nonflammable
Gas |
| DOT
ID No.: |
|
UN 1006 |
| CAS
No.: |
|
7440-37-1 |
| Valve
Outlet: |
|
CGA580 |
| |
|
Physical State in High Pressure Cylinder: Gas |
| Toxicity: |
|
Non-toxic |
| Fire
Potential: |
|
Non-flammable |
| Compatible
Materials: |
|
|
| Major
Hazards: |
|
High
Pressure Suffocation |
| |
|
|
|
Physical Properties of Argon |
| Formula: |
|
Ar |
| Molecular
Weight: |
|
39.95
lb/mol |
| Specific
Volume at 70°F and 1 atm: |
|
9.67 ft3/lb
(0.60 m3/kg) |
| Specific
Heat: |
|
4.98
BTU/lbmol-deg F@ 70 deg. F. |
| Specific
Gravity: |
|
1.38 |
| Gas
Density: |
|
0.1034
lb/ft3 @ 70 deg. F. 14.7 PSIA |
| Boiling
Point: |
|
Temperature:
-302.6 deg. F |
| Liquid
Density: |
|
87.01
lb./ft3 |
| Latent
Heat: |
|
69.5
BTU/lb. |
| |
|
Critical Point: |
| Temperature: |
|
-188.4
deg. F |
| Pressure: |
|
705.4
PSIA |
| |
|
|
|
Melting Point: |
| Temperature: |
|
-308.8
deg. F |
| Pressure: |
|
9.97
PSIA |
|
Compressed
Argon Cylinders
|
PART
NUMBER
|
CYLINDER
SIZE
|
WEIGHT
OF GAS (LBS.)
|
PRESSURE
(PSI @ 70F)
|
DIMENSIONS
(Height x Diameter)
|
|
ARG020
|
20
ft3
|
2.68
|
2015
|
18"
x 5-1/2"
|
|
ARG125
|
125
ft3
|
12.93
|
2265
|
47"
x 7"
|
|
ARG250
|
250
ft3
|
25.85
|
2265
|
51"
x 8-1/2"
|
|
ARG336
|
336
ft3
|
34.75
|
2400
|
55"
x 9-1/4"
|
Argon/CO2 75/25 Cylinders
|
PART
NUMBER
|
CYLINDER
SIZE
|
WEIGHT
OF GAS (LBS.)
|
PRESSURE
(PSI @ 70F)
|
DIMENSIONS
(Height x Diameter)
|
|
ARG/CO27525-020
|
20
ft3
|
2.12
|
2015
|
18"
x 5-1/2"
|
|
ARG/CO27525-080
|
80
ft3
|
8.49
|
2015
|
36"
x 7"
|
|
ARG/CO27525-125
|
125
ft3
|
13.27
|
2265
|
47"
x 7"
|
|
ARG/CO27525-250
|
250
ft3
|
26.55
|
2265
|
51"
x 8-1/2"
|
|
ARG/CO27525-382
|
382
ft3
|
40.56
|
2400
|
55"
x 9-1/4"
|
|
SERVICE
IS OUR MAIN ITEM . . . AND WE ARE NEVER OUT OF STOCK!
Havard Welding
713-672-1743 1601 Clinton Galena Park, Texas
77547
|
