Nitrogen gas kit, comes with cylinder, regulator and hose, available Australia wide, in D & C size.
Call us on 0404 677 187
STEP 1 - BUY YOUR CYLINDER
STEP 2 - USE YOUR GAS
STEP 3 - GET CHEAP REFILLS
No Cylinder Rental – No Contracts
Rentfreegas is a Gas company based in Sydney NSW that sells cylinders, gas and equipment on a rent-free and delivery free basis. We specialise in Argon, Mig gas, Oxygen, Nitrogen, Carbon Dioxide and Helium. We supply Speedgas cylinders as well as regulators, high pressure hoses, fittings and other accessories. With over 20 years in the industrial gas industry we can help you not only save money on rental, but help you make specific gas mixtures and source gases internationally.
We aim to provide great service to all customers and if we cannot help you point you in the right direction to get the support you need.
Own your cylinder!
Call to talk to us now – 0404 677 187
| New & Full Bottle | C | D | E | G |
| Argon | $200 | $299 | $430 | $599 |
| Argon 5/2 | $200 | $299 | $430 | $599 |
| Nitrogen | $200 | $300 | $430 | $569 |
| CO2 | $200 | $340 | n/a | $599 |
| Oxygen | $200 | $270 | $429 | $599 |
| Helium | $210 | $360 | $460 | n/a |
| REFILL Bottle | ||||
| Argon | $70 | $100 | $150 | $199 |
| Argon 5/2 | $70 | $100 | $150 | $199 |
| Nitrogen | $70 | $85 | $130 | $160 |
| CO2 | $70 | $85 | n/a | $120 |
| Oxygen | $70 | $100 | $129 | $180 |
| Helium | $70 | $110 | $150 | n/a |
| Delivery free Sydney | ||||
Argon gas prices in Australia | Cost of Bottle Ownership
Welding Gas Prices Below are Argon gas price, Oxygen and Argon 5/2 prices. The Argon gas price includes delivery to you. Our Mig gas, which is also called ‘Argon 5/2’ is a mixture of Carbon Dioxide (5%) and Oxygen (2%) in Argon (93%) and we can make up varying mixtures Argon, with CO2 and Oxygen in the same bottle. Mixtures of Argon with helium are also manufactured. Our bottles comply with Australian standards and that means that your existing regulator will fit straight on to the cylinder. All bottles are Speedgas branded and they are full of gas, and our argon gas prices include delivery & GST. Argon gas price and bottle sizes: C Size: New $220 & Refill $75 D Size: New $360 & Refill $110 E Size: New $460 & Refill $160 G Size: New $560 & Refill $180 Delivery is within 30km of CBD in Sydney, Melbourne, Brisbane & Adelaide. The no rental gas model allows a customer to own an argon gas bottle (cylinder), to avoid the daily and yearly cost of rental. The first cost is higher, as it includes the cost of the cylinder, and then the only ongoing cost is the refill or swap-over cost. The system works in a similar fashion to “swap & Go” with LPG cylinders except that we deliver to you, whether at home or at work. This is an alternative to paying rental on gas bottles for welding gas and the prices are provided so you can do a comparison to see if it works for you. In the comparison make sure you include delivery, rental, handling and all costs.
Rent free argon – What can argon be used for?
Put simply, rent free argon is what we deliver for you to keep. Because our rent free argon is yours once we’ve delivered it, you never need to pay rent on that cylinder, so you can put it away and use it whenever you need it. What is argon? Argon is known as one of the ‘noble gases’. What does that mean? Basically, it can create an ideal inert atmosphere which is loved by welders. Argon is used to shield the metals that are being welded so they don’t oxidise. Argon – much more than ‘lazy’ Argon has no colour, taste or odour, but it’s much more than that – even though it got its name from the Greek word for ‘lazy’, given how well it does its job without reacting. Argon can be used in fluoro lights, but for DIY and industrial processes, rent free argon really is handy. Again, it’s all about the non-reactive qualities of argon. So when welding those speciality alloys, for example, rent free argon is perfect. A versatile gas Because it’s all around us as an element of our breathable air, argon is abundant and inexpensive. Mixed with other gases, argon is regarded as the perfect shielding gas for TIG welding. But argon is also used for MIG welding, protecting that weld from the reactive properties of the air around it. Argon is also a great insulator, so deep sea divers love it to keep them warm in those deep, dark depths. Argon can also help to preserve things. What, exactly? Important historical documents, for example, can have argon pumped into their enclosures, which will help to protect the paper or ink from degrading over time. Argon is also used for wine preservation. In this way, argon supplied by Rent Free Gas could easily have been used for that 500-year-old map of the world in the US Library of Congress, or a priceless and super-rare copy of the historic [...]
Our gas delivery makes your project easy
When it comes to all of the home, commercial and industrial projects that are on your 'to do' list, we know how important they are to you, your family and your business. So whether it's argon, O2, CO2, nitrogen or helium that you need to see you through, fast and efficient gas delivery is what we supply without question. Argon Argon is a popular gas used as a shielding agent in aluminium and steel welding, whether your project requires the TIG or MIG process. If you need argon, we do your gas delivery either by Australia Post for small cylinders, or we'll deliver the larger cylinders right to your door ourselves, provided you are within 30km of the CBD in Sydney, Melbourne, Brisbane or Adelaide. Oxygen We also do gas delivery for your applications that require oxygen. Most of the time, you'll want your oxygen for the flexibility of the burning flame – but it may be that you won't want to use O2 every day. If that's the case, then renting makes little sense, because those renting costs quickly add up. If you get your delivery from Rent Free Gas, you will have your very own gas cylinder, which means you can forget all about rental fees. CO2 If delivery of CO2 is what you desire, you could be wanting it for a huge range of various and innovative applications. It is relevant for many DIY, commercial, hospitality and industrial uses, but whatever you need it for, efficient and speedy delivery is a key to getting that project done right. Luckily, our delivery options have you covered, because we either post it to almost every postcode in Australia, or deliver it ourselves to any place within 30kms of the capital cities (excluding WA) . Nitrogen Just like argon, oxygen and CO2 gas delivery, we're passionate about getting nitrogen to you as well. It helps our customers in so many ways, from small home applications to the [...]
Oxygen LPG vs. oxygen acetylene
Oxygen mixed with a fuel gas is one of the most widely used industrial thermal cutting processes, because it can cut material that is up to 250mm thick, is cost effective, and can be used either manually or mechanically. The two most widely used cutting fuels are LPG (propane) and acetylene, with acetylene being seen for years as the industry standard. However, recently many have questioned whether acetylene is better for cutting than propane or LPG and a debate in oxy-LPG vs. acetylene has emerged. Below, we compare the two and look at the advantages and disadvantages of each, so you can decide where you fall in the oxy LPG vs. oxy acetylene debate. Oxy LPG advantages • Propane has a greater total heat of combustion • Oxy propane is easy to obtain and cheaper • Propane is more stable. Oxy LPG disadvantages • Propane produces a lower flame temperature • There is increased pre-heat time • Propane flames are less focused and therefore piercing is slower • Propane can’t be used for gas welding because it doesn’t have a reducing zone • In terms of oxy propane vs. oxy acetylene, propane is often used when cut quality is not essential. Oxy acetylene advantages • Acetylene produces the hottest flame temperature for oxy fuel cutting and welding • The hotter temperature creates a quicker piercing of materials • Oxy acetylene can be used on sites with no power supply • It is quite a versatile process and can be used to weld most metals. Oxy acetylene disadvantages • Acetylene weld lines are rougher in appearance and need more finishing • Acetylene is unstable and expensive • Regarding oxy propane vs. oxy acetylene, there are more safety issues with oxy acetylene, because there is a naked flame. Oxy LPG vs. oxy acetylene – it's your call! Whichever side you choose in oxy lpg vs. oxy acetylene, don’t be sucked into charging rental costs on gas cylinders you’ll only [...]
Nitrogen gas bottle uses… more than just welding!
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.
Welding made easy with MIG gas
Welding using a metal inert gas (MIG) welder is really not difficult. Using a MIG welder is easy with the right MIG gas. Plenty of MIG gas options MIG welding is a simple, easy and popular welding process that uses electricity and MIG gas to melt and join metal. Luckily, when it comes to picking the right gas to use, there are plenty of options. Why do you need MIG gas? You need MIG gas in order to shield the weld from the air. But it’s not just the case of picking a MIG gas randomly. Basically, you need to make the right choice of MIG gas to: Determine the depth of the weld Determine the characteristics of the welding arc Determine the weld’s mechanical properties. How to get your gas choice right Rent Free Gas can help advise you as to what is the best MIG gas to use in your particular case. Argon can be used for your MIG welding, especially for steel and aluminium, and Argon 5-2 is also great for mild steel welding. Some other common MIG gases are CO2 and Oxygen, with Helium being the least common. Often, these gases will be fixed together, although Argon and carbon dioxide can be used as a pure MIG gas. In many cases, up to three MIG gases can be combined; typically Argon, CO2 and Helium, or Argon, CO2 and O2. Pure CO2 as a MIG gas can produce the deepest penetrating welds, although the welds can also be rough. A MIG gas made up of CO2 and Argon is very popular, although if you are welding stainless steel, the best MIG gas mix is probably mostly Argon and CO2. MIG gas advantages Welding with MIG gas is great, because: Welding a large number of metals and thicknesses is easy The welt bead is good Weld splatter is minimised Welding with MIG gas is easy to learn and master. MIG gas disadvantages Welding with [...]