Gas For Welding Guide!

Welders need gas for welding, and among things there is a need for a quality welder, material to weld, welding rods, a and a working area.

From the birth of welding gas has been required in one form or another to support the welding process, without it a good, strong weld cannot be performed. One of the interesting points with welding gas is that there is not one gas alone that is used, there are a great number of different gases that can be used.

Acetylene Welding Gas:

The most common and widely used of the different gas options available, acetylene is used in oxyacetylene welding, the oldest welding form. The acetylene gas is used in conjunction with oxygen to produce a high temperature flame.

Hydrogen Gas For Welding:

Hydrogen is used less in welding but can most commonly be found in underwater welding. The reason for this is that Hydrogen is stable when used under water unlike Acetylene that becomes unstable because of the pressures found under water. Hydrogen is also used in welding Nickel.

Argon:

Argon is not used so much as a fuel but as an inert gas, shielding the work area from atmospheric gases so the weld can be produced in an uncontaminated area with the correct gas for welding ratio's in place. There are other inert gases used for this same process but Argon is the most common of these gases.

Nitrogen:

Nitrogen is a great gas for welding stainless steel, this is because it offers the welder a better opportunity of producing a deeper weld and keeps the welding arc more stable through out the welding process.

Oxygen:

Pure Oxygen is a major driving force in some welding process as the fuel gas to drive the flame to a temperature required to produce a strong weld. Oxygen was the first gas to ever be used in a welding process, this was back in 1903 when the French engineers Edmond Fouché and Charles Picard produced Oxygen-Acetylene welding.

It doesn't matter what welding equipment you may have, without a gas no welding can take place. This is because the gas is the driving force behind producing a welding flame in some welding types or removing rogue atmospheric gases from the weld area in other welding processes.

It is vital and important to ensure you review the welding type you wish to carry out and use the correct welding gas type. If you can ensure you are using the correct gas then you are already winning half the battle in producing a strong weld.