Welding and cutting gases
Quality that can stand the heat
Welding technology covers a very wide range of procedures. The DIN EN 4063 standard defines well over 100 different welding methods.The range of gases and applications that Messer offers you in this area is correspondingly diverse.
Shielding gases for welding are typically used in oxyfuel processes, which use fuel gas/air mixtures or, preferably, fuel gas/oxygen mixtures. Shielding gases for welding are also indispensable in arc welding, where the necessary thermal energy for the process comes from an arc. The same applies to TIG and MIG welding, where gas mixtures dominate today’s market. These mixtures feature a range of possible components, including argon and CO2 as well as oxygen, helium, hydrogen and nitrogen.
Three product groups for numerous applications
Shielding gases for welding have a major influence on product quality and manufacturing efficiency. For easier selection, you should remember the following names: Ferroline, Inoxline and Aluline. These names stand for gas mixtures that are very specialised in their field:
Ferroline - Shielding gases for plain and low-alloy steels
Inoxline - Shielding gases for high-alloy steels
Aluline - Shielding gases for aluminium and non-ferrous metals
As a manufacturer of industrial gases, we not only deal with those processes that involve the use of industrial gases, but also with processes that are in competition with this.
MAG welding of plain steels
MAG welding of high-alloy steels
TIG welding of high-alloy steels
MIG and TIG welding of aluminium
Gases for oxy-fuel technology
The gas mix classics
Ferroline C18 with 18% CO2 admixture, Ferroline X8 with 8% oxygen and Ferroline C5 X5 as triple gas mix are proven standard mixes. Oxygen is particularly effective in reducing spatters, while CO2 can be an advantage for out-of-position welding. In special cases, pure CO2 is also used, for example with cored wires for out-of-position welding.
With Ferroline C8, as with Ferroline X4, the tendency has been turning to low-activity gas. Reduced slag formation and the avoidance of spatters can bring decisive cost advantages. A positive secondary effect: The mechanical/ technological properties of the weld are noticeably improved. This shows the high quality potential of low-activity gases. C12 X2 and C6 X1 offer the best of both worlds. Here we provide considerably reduced spatter formation and greater suitability out of position welding thanks to the lower O2 fraction.
At very high current levels, there is a switch from spray arc to rotating arc. Basically, all argon mix gases are suitable for the rotating arc. The lowactivity gas Ferroline X4 renders the switch to rotating arc particularly easy. Helium admixtures, as in TIME gas for example, are used in special cases. These require a higher working voltage.
Contact us! Elme Messer Gaas is pleased to help you choosing your shielding gas for welding.
Gases for Welding and Cutting:
More information about welding and cutting gases you may find on Messer Group website.