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Shielding Gases

Many industries can benefit from Air Products' range of shielding gases for welding and cutting. They can improve quality, optimize performance, and reduce costs. Our experienced applications teams across the globe can use their knowledge of your industry and application to provide you with a shielding gases supply and a technology solution to meet your unique needs. The table below has more detailed information on our range of shielding gases.

Product NameDescription/BenefitsDownloads

Acetylene

Acetylene is the primary fuel for oxy-fuel welding and is the fuel of choice for repair work and general cutting and welding, Acetylene produces the hottest and most concentrated primary flame of all industrial fuel gases. Its calorific value is fairly low, but the portion emitted by the primary flame is very high, about 30%, making acetylene the fuel gas that produces the most heat in the primary flame.

Acetylene is the primary fuel for oxy-fuel welding and is the fuel of choice for repair work and general cutting and welding, Acetylene produces the hottest and most concentrated primary flame of all industrial fuel gases. Its calorific value is fairly low, but the portion emitted by the primary flame is very high, about 30%, making acetylene the fuel gas that produces the most heat in the primary flame.

Argon

Argon is part of a range of pure elemental gases and gas mixtures can be used for laser welding. Argon is suitable for laser powers up to 3 kW. However, the plasma suppression properties of argon can be improved by admixing helium, oxygen or carbon dioxide. The most commonly used gases are argon and helium.

Argon is part of a range of pure elemental gases and gas mixtures can be used for laser welding. Argon is suitable for laser powers up to 3 kW. However, the plasma suppression properties of argon can be improved by admixing helium, oxygen or carbon dioxide. The most commonly used gases are argon and helium.

Carbon Dioxide

Carbon dioxide and nitrogen are reactive gases which can form oxides, carbides or nitrides with the weld metal. The mechanical properties of the welds may therefore be impaired and for some applications this disqualifies the use of carbon dioxide and nitrogen as welding gases. However, in some cases, reactive welding gases can be tolerated or even be advantageous. For some stainless steels, for example, nitrogen gives a better corrosion resistance and microstructure of the welds.

Carbon dioxide and nitrogen are reactive gases which can form oxides, carbides or nitrides with the weld metal. The mechanical properties of the welds may therefore be impaired and for some applications this disqualifies the use of carbon dioxide and nitrogen as welding gases. However, in some cases, reactive welding gases can be tolerated or even be advantageous. For some stainless steels, for example, nitrogen gives a better corrosion resistance and microstructure of the welds.

Euromix M21

Purpose designed for MAG welding of carbon manganese steels and gas shielded flux cored arc welding (FCAW) and metal cored arc welding (MCAW) of carbon manganese steels and stainless steels, EuroMix M21 is a mixture of pure argon (Ar) and carbon dioxide (CO2). It meets the requirements of the M21 (according to EN439 or ISO14175) shielding gas often specified in many welding procedure specifications (WPS).

Purpose designed for MAG welding of carbon manganese steels and gas shielded flux cored arc welding (FCAW) and metal cored arc welding (MCAW) of carbon manganese steels and stainless steels, EuroMix M21 is a mixture of pure argon (Ar) and carbon dioxide (CO2). It meets the requirements of the M21 (according to EN439 or ISO14175) shielding gas often specified in many welding procedure specifications (WPS).

Helium

Helium is the preferred shielding gas for high speed, high power laser welding.  Helium has high thermal conductivity, producing welds with an excellent aspect ratio, high ionisation potential, producing excellent plasma suppression and high weld speeds.

Helium is the preferred shielding gas for high speed, high power laser welding.  Helium has high thermal conductivity, producing welds with an excellent aspect ratio, high ionisation potential, producing excellent plasma suppression and high weld speeds.

Oxygen

In the preheat flame, a fuel gas burns in oxygen, generating heat. The flame consists of an outer and an inner combustion zone. The main purpose of the preheat flame in most flame processes is to achieve rapid, local heating. This imposes requirements on the combustion properties of the gas that is used.

In the preheat flame, a fuel gas burns in oxygen, generating heat. The flame consists of an outer and an inner combustion zone. The main purpose of the preheat flame in most flame processes is to achieve rapid, local heating. This imposes requirements on the combustion properties of the gas that is used.

Shielding Gases

Air Products offers a full range of standard shielding gas mixtures for the MIG / MAG welding of all common material types (Carbon & Alloy Steels, austenitic Stainless Steels, ferritic & Martensitic Stainless Steels, duplex Stainless Steels , aluminium, copper, cast Iron, nickel Alloys, Ni/Cu, titanium/Magnesium). Our standard gases are available in traditional cylinder sizes at 200 bar and 230 bar cylinder pressure.

Air Products offers a full range of standard shielding gas mixtures for the MIG / MAG welding of all common material types (Carbon & Alloy Steels, austenitic Stainless Steels, ferritic & Martensitic Stainless Steels, duplex Stainless Steels , aluminium, copper, cast Iron, nickel Alloys, Ni/Cu, titanium/Magnesium). Our standard gases are available in traditional cylinder sizes at 200 bar and 230 bar cylinder pressure.

Traditional MIG/MAG gases

Air Products offers a full range of standard shielding gas mixtures for the MIG / MAG welding of all common material types (Carbon & Alloy Steels, austenitic Stainless Steels, ferritic & Martensitic Stainless Steels, duplex Stainless Steels , aluminium, copper, cast Iron, nickel Alloys, Ni/Cu, titanium/Magnesium). Our standard gases are available in traditional cylinder sizes at 200 bar and 300 bar cylinder pressure.

Air Products offers a full range of standard shielding gas mixtures for the MIG / MAG welding of all common material types (Carbon & Alloy Steels, austenitic Stainless Steels, ferritic & Martensitic Stainless Steels, duplex Stainless Steels , aluminium, copper, cast Iron, nickel Alloys, Ni/Cu, titanium/Magnesium). Our standard gases are available in traditional cylinder sizes at 200 bar and 300 bar cylinder pressure.

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