Complementing the right gas.
SERVICES.
• Supply & Facility
management
• Maintenance
• Product
stewardship
& safety training
• Extra delivery
services
• Installation
• Gas analysis
& certificates
• Tracking &
tracing
• Process
consulting
& management
• Order Services
• Customer R&D
• Application training
• Customer platform
Experience. Competence. Productivity.
Customer Service 1-888-262-6424
complementing your choice of gas. Our
SERVICES portfolio has been developed to meet
your needs as our customer. The portfolio can be
broken down into four interlinked segments:
•
•
•
•
Administrative efficiency
Supply reliability
Quality and safety
Process know-how
Supply reliability
Not only do we deliver high quality
products as standard, but we make it
simple and easy for you to order your
gas when you need it through our
independent distributor network.
For a location near you please visit
Linde’s U.S. web site www.lindeus.com
and search on the tab “find an authorized
Linde distributor in the U.S.”
It is our goal to eliminate all unscheduled
interruption to you delivery ensuring
you get the right gas when you need it.
Linde authorized distributors have over
500 locations to service your gases,
related gas handling equipment and
welding supplies needs. Each distributor
has the capability, technical knowledge
and resources needed to solve your
problems on site and on time.
Quality and safety
Safety is a priority for Linde and most likely for
you too. Linde can provide you with know-how in
the safe use of your shielding gases.
• Safety Training – these are practical courses
designed for the users of compressed
gases. These can be delivered at a
customer site or through e-learning so
we are able to train all levels of personnel
to meet their individual needs.
• Gas Analysis – professional analysis of gas
in the lab or on site guarantees the high and
consistent quality you need in your processes.
• Preventive maintenance contracts –
we offer a regular check of your
gas-supply system, to ensure its
safe operation and, if required,
to maintain and repair the system.
Process know-how
The Linde Group is a global solutionprovider committed to the welding
industry. With our outstanding global
team of application engineers,
we have high competence in all
shielding gas processes.
• Application training – you can benefit
from our experience in welding and
cutting applications to ensure that
the skill levels of your workers are
as high as possible.
• Process consultation – our application
engineers can look at your gas
consumption and optimise it for
your processes.
Linde
Shielding Gases
LINDEMAN/0033/LINUS/510/400
Linde provides a broad range of SERVICES
The right choice
for your welding operation
Linde Gas North America LLC.
575 Mountain Avenue
Murray Hill, NJ 07974 USA
www.lindeus.com
Linde Gas North America LLC is a member of The Linde Group.
Linde is a trading name used by companies of the Linde Group. The Linde logo and wordmark are trademarks of The Linde Group. Copyright 2010.
Linde Gas
SG-AC-8
MISON 8
CORGON 15
•
•
The weld metal properties
such as strength, corrosion
resistance and toughness
• Welding speed and
amount of spatter
92
91.97
8
85
15
20
CORGON 25
SG-AC-25
75
25
MISON 25
SG-ACX-25/0.03-G(NO)
25
CORGON 501
SG-ACO-5/1
74.97
95
94
5
1
CORGON 7.5O2.5
SG-ACO-7.5/2.5
SG-ACO-12/2
90
86
60
0
7.5
12
2.5
2
SG-AHeC-30/10
Carbon Dioxide
SG-C
SG-AC-2.5
CRONIGON 2.5
SG-ACX-2/0.03-G(NO)
MISON 2
CRONIGON O2
SG-AO-2
CRONIGON 2He20
SG-AHeC-20/2
MISON 2He30
SG-AHeCX-30/2/0.03-G(NO)
CRONIGON 2.5He90
SG-HeAC-7.5/2.5
VARIGON H2
SG-AH-2
VARIGON H5
SG-AH-5
VARIGON N2.5
SG-AN-2.5
Argon
SG-A
MISON Ar
VARIGON He25
SG-AX-0.03-G(NO)
SG-AHe-25
30
10
100
2.5
2
Provides optimal results for high productivity on wide thickness ranges with min. spatter.
High penetration shielding gas used mainly for SCT.
2
2
2.5
0.03
The CO2 blends provides good arc control with a sluggish weld pool, which for
SCT is good for all positions. The O2 blend gives stable spray transfer with a fluid
weld pool that flows nicely into the base metal. All very suitable for PST.
0.03
These versatile mixes can be used for all transfer modes. Helium additions help improve
wetting, depth of fusion and travel speeds. MISON 2He30 is very effective for most
stainless applications resulting in increased puddle fluidity and a better weld appearance.
2
5
Allows better wetting and higher travel speeds to weld austenitic steel and nickel alloys.
Argon/hydrogen mixtures should not be used on carbon, low alloy or ferritic steels.
Nitrogen additions in the gas to maintain levels that may be lost during welding.
2.5
100
99.97
25
30
SG-AHeX-30/0.03-G(NO)
SG-AHe-50
69.97
50
50
MISON He50
VARIGON He75
SG-AHeX-60/0.03-G(NO)
SG-HeA-25
49.97
25
50
75
FORMIER 5
FORMIER 10
SG-NH-10
VARIGON H10
SG-AH-10
90
10
VARIGON H35
SG-AH-35
65
35
All products within the BASE product line are
proven mixtures offering the highest quality time
and time again. This line contains our all-round
products such as CORGON® 20, CRONIGON® 2.5
and Argon, products that are indispensable
to the welder and that are ranked as some of the
best-selling shielding gases in the world.
Within the BASE product line, there are shielding
gases for welding all materials using all the
common gas-using arc-welding processes.
Adding helium results in higher heat input providing better penetration and
makes the weld pool more fluid. Helium additions also reduce the porositiy
the resutling weld. Helium additons do however make the arc start more
difficult and the arc less stable. Additons of NO as in the MISON gases will
increase arc stability.
0.03
0.03
5
10
95
90
Good choices for root protection, with the expection of titanium stabilized
CrNi steels. Here Argon should be used.
VARIGON H2 for example is the preferred gas
mixture for manual welding of austenitic
stainless steel. It gives a fluid weld pool and
produces a very clean bright weld with
excellent properties.
While BASE line shielding gases support an easy and safe execution
A well established line of
shielding gases for welding
of carbon and low alloy steels.
Corgon shielding gases are
argon-based mixtures with
additions of active gas,
mainly carbon dioxide in
concentrations above 3% and
sometimes oxygen. How much
of these active gases is added
depends on the application.
of a structurally sound weld PREMIER line shielding gases add additional
Each PREMIER product has been specifically
developed to maximise the performan
f
forman
ce of the
shielding gas in one or more respects. This has
been achieved by balancing the components
within the shielding gas and using additional
gases, which bring additional benefits to
the welder, the welding engineer and
production manager.
benefits and are recommended
• When throughput or cleanliness have to be optimized,
• When welding special materials or in difficult positions,
• When environmental aspects are of concern
• When bottom line saving are being maximized
The use of carbon dioxide when GMA welding carbon steels for example can
cause large amount of spatter to be ejected from the weld pool. By using an
argon/20% carbon dioxide mixture the amount of spatter can be halved and
by moving to CORGON® 1202, an argon/12%carbon dioxide/2% oxygen mixture
CRONIGON® mixtures
The correct choice for GMA
welding of stainless steel. These
gases are also argon based,
but active components
(carbon dioxide and oxygen)
are equal to or less than 3%
to protect the integrity of
stainless steel. Helium with its
high thermal conductivity and
ionization potential may be
added to achieve a deeper
and broader penetration.
VARIGON® mixtures
Recommended line of shielding
gases for GTA welding of
stainless steels, aluminum,
titanium and copper. In contrast
to the CORGON and CRONIGON
lines, VARIGON gases contain
oxidizing components only in
very small amounts, if at all.
Helium, hydrogen and nitrogen
may be added depending on
the application for superior
performance.
Plasma cutting gases.
The PREMIER product line is a range of tailored
shielding gases each offer
off ing a range of added
benefits over BASE products.
Use Linde PREMIER shielding gases
CORGON® mixtures
PREMIER product line
BASE product line
For any application, it is important
to choose the right shielding gas.
To make that choice easier, Linde
has allocated each shielding gas
to one of two product lines.
Argon is an excellent choice for GMAW of thin aluminum and
GTAW for all metals and provide easy arc starts.
0.03
75
SG-NH-5
Titanium
Corgon O5 is used to obtain spray transfer at lower current values
than Ar/CO2. Ar-CO2-O2 trimixes produce good bead profile results
with low spatter. They tend to a high degree of oxidation with an
increased sensitivity to porosity.
MISON He30
VARIGON He50
Copper
0.03
2
20
30
90
= Gas Tungsten Arc Welding
Argon-CO2 mixtures are commonly used for short circuit transfer
(SCT) on mild steel. CORGON 20 and 25 are great penetrating SCT
gases. Higher CO2 levels produce more spatter and silicate islands
but increase penetration and broaden the penetration profiles.
Mixtures with 85% or more Argon enable good spray transfer.
CORGON 15 and MISON 15 are excellent allround gases and allow
all transfer modes (SCT, Spray and PST).
5
97.5
97.97
98
78
67.97
7.5
98
95
97.5
= Gas Metal Arc Welding
0.03
15
80
CORGON 12O2
CORGON 10He30
NO
APPLICATIONS/GENERAL COMMENTS
0.03
84.97
SG-AO-5
N2
8
SG-AC-20
CORGON O5
H2
Aluminum
O2
Duplexn and
Super Duplex
CO2
SG-ACX-15/0.03-G(NO)
Weld bead shape and size
The weld porosity
and fusion
SG-ACX-8/0.03-G(NO)
SG-AC-15
He
CORGON 20
MISON 15
•
Ar
Ferritic and
Martensitic SS
PREMIER
CORGON 8
For many people the sole
role of the shielding gas is
to protect the finished weld
from the effects of oxygen
and nitrogen in the
atmosphere. What isn’t
widely understood is that
selecting the right shielding
gas for the job can
bring many more benefits
and positively affect:
AWS specification
Austenitic
Stainless Steel
BASE
Nominal composition (%)
Carbon Steel
Product Lines
Unlock the potential of your welding process
Product range
this value can be halved again. Removing spatter after welding is both costly and
can cause problems if the component is subsequently painted or coated as the
small marks left by the spatter show up as surface imperfections.
MISON mixtures
®
MISON shielding gases are argon-based mixtures containing a small
concentration of nitric oxide (<0.03% NO), which reduces ozone
generated around the weld and positively influences arc stability.
MISON is one of Linde’s Premier shielding gases.
While most effective in GMA and GTA welding of stainless steels and
aluminum alloys there are mixtures in the MISON family for all materials.
Depending on the application one or more of the following benefits
may be observed:
Ozone reduction
Our understanding of ozone has changed over the years. While
necessary in the upper layers of our atmosphere we consider it
unhealthy and toxic when part of our breathing atmosphere. At levels
around 0.1ppm ozone can cause dryness and irritation in the nose. At
levels between 0.1 to 1ppm it causes wheezing or chest pain as well as
loss of breath. Other symptoms can include cough, sore throat, fatigue
and headache.
By using MISON and reducing the ozone at its source you shield the
weld and the welder. This reduction of ozone at it’s source is not
achieved by fume extraction or ventilation. More important MISON
follows the torch. Chances are that in a cleaner environment, with less
ozone, arc on time and productivity go up.
Arc types and filler materials
VARIGON N2.5 is a PREMIER gas mixture,
specifically designed for welding of duplex
stainless steel. The nitrogen in the gas mixture
helps to balance the weld metal microstructure
improving the in-service corrosion performance,
particularly pitting and corrosion resistance.
Short circuit, spray and pulsed arc types can be used with MISON. The
pulsed arc offers significant advantages, especially for softer aluminum
filler metal, because it allows the use of larger diameter wire electrodes
with their improved feeding reliability.
Improved arc stability
Special order:
Please inquire about special
mixtures with higher helium
contents or our oxygen doped
shielding gases.
Initial arc transmission is a critical factor in elimination of spatter and
weld imperfections during arc start. MISON gases perform extremely
well here. Improved arc stability leads to better control of the weld pool
and better out of position welding.
Ozone level in TIG welding
Shielding gas affects your weld operation
Argon
MISON
Material: 0.08” stainless steel
Welding current: 80A
Experience the difference
The MISON family of shielding gases
demonstrates that optimized welding
performance – speed and quality –
CAN be achieved while also enhancing
the immediate working environment
through the significant reduction of
ozone emissions. Contact us for an
on-site trial or demonstration
at our Technical Center. Boost your
productivity without capital investment.