Welding with a nitrogen gas bottle For stainless steel tube welding, a nitrogen gas bottle is a perfect purge gas. You probably require nitrogen for your DIY welding projects or for your nitrogen plastics welding system, but you may not be aware that it has so many other uses. Nitrogen, whose symbol is N or N2, makes up no less than 78% of the Earth's atmosphere. It has no colour, odour, taste or toxicity and it is not flammable. It was officially isolated in the 18th century, but scientists knew about this element – crucial to biological life – long before this. The uses of a nitrogen are endless! You will be amazed at just how many uses a nitrogen gas bottle has. Use this versatile inert gas to superbly inflate tyres, improving tyre life and also minimising the risk of tyre blowouts. Or use your nitrogen to mix it with CO2 for your beer making. In the form of a nitrogen gas bottle, N2 is a seriously handy gas. It can be used in food packaging, wine making, air conditioning and scientific testing – and that's just the start of the possible uses. Nitrogen gas bottles are commonly used in industry for blanketing or purging, which involves the removal of unwanted or unstable gases or compounds, while nitrogen is also used to control the temperature of computer CPUs and for making light bulbs. Ever played with a paintball gun? Nitrogen have been used to supply the power source, even if you may think that carbon dioxide is the obvious choice. A nitrogen gas bottle can also be used for plasma cutting and in combination with argon for a shielding gas. Nitrogen is also used in combination with CO2 in cold brewing coffee. Whatever you need a nitrogen gas bottle for, you can be sure that, here at Rent Free Gas, we have all your requirements covered. Give us a call 0404 677 187 today.