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 | ||||
How to work safely with compressed gases
Whether using a nitrogen gas bottle or some other type of compressed gas, it’s certain compressed gases need to be handled with care. The rent free gas bottles we supply contain gas under pressure (otherwise known as compressed gas), and all the gases we supply are non-flammable. However it is important to always carefully consider your safety and the safety of others when buying compressed gases. Safely store your rent free gas bottles When you purchase your gas cylinders, you need to think carefully about where you plan to store them, how you will encourage proper ventilation when they’re in use, and how to transport them properly without doing any damage. How to store bottles properly If you have rent free gas cylinders, even if you plan to use them the next day, chances are you might need to store them for a few hours. To do this, make sure they are secured, so they cannot fall over and stored in a place that is away from high temperatures – so be wary of a garage that gets too hot – and make sure they are placed according to health and safety regulations. Ensuring proper ventilation When using gas, make sure you are doing it in a properly ventilated area. Make sure any ducts or hoods in the space are suited for that specific gas use before you put it into operation. Make sure systems are explosion and corrosion proof so you don’t do damage to the area you’re working in. Also take care to wear proper eye, ear, body and face protection so you don’t hurt yourself. Transporting gas bottles safely When moving rent free gas bottles from place to place, always have the valve caps on them for protection. Be careful when lifting the cylinders too – don’t pull them by their valve caps or roll or slide them along the ground, as these actions can cause them damage. However, if moving a short distance, you can safely roll the cylinder on the bottom [...]
Common uses of welding gas bottles
Rent free welding gas bottles are the easy and more cost-effective way to complete your welding projects. If you currently rent a bottle, but you don't have any welding projects on your bench for a month or two, you're literally wasting money every day. Make the easy leap to buying your own bottle, because rent free welding gas bottles are the answer! Common welding gas bottles and their uses: Argon Argon is used as an inert shielding gas, protecting your weld from contamination from the air. By properly using an Argon rent free welding gas bottle, typically used for a TIG welder, you ensure that air will not come in contact with the molten weld puddle and react with the metal. Argon 5-2 Different to Argon rent free welding gas bottles, Argon 5-2 can be used when you are welding mild steel, in the form of MIG welding. Basically, Argon 5-2 rent free welding gas bottles contain a mix of Argon and also CO2 and Oxygen. Oxygen Oxygen rent free welding gas bottles are used for what is called Oxygen & LPG welding (or Oxyacetylene), otherwise known as Oxy-fuel welding. Basically, this means you are using the oxygen in your rent free welding gas bottle as the combustion method. It's also great for bending, heating, surfacing and brazing, as the welder has a lot of control over the heat. CO2 Did you know that CO2 rent free welding gas bottles are most commonly used as a reactive gas for MIG welding, and are the only ones that can be used without an inert gas? CO2 rent free welding gas bottles are also a very inexpensive shielding gas, and provide for deep weld penetrations useful for welding thick materials. Nitrogen Another inert gas, like Argon or C02, is nitrogen, which in the form of a rent free welding gas bottle means you eradicate oxygen from the welding environment and prevent oxidation. Nitrogen rent free welding gas bottles are increasingly popular [...]
Saving money with rent free welding gas bottles
In any market, the debate between renting and owning is a struggle. In the current housing market, economists go back and forth about the wisdom of buying when renting could make just as much or more economic sense. Some refuse to buy a new car when a comfortable lease seems to be a great deal. When it comes to your welding gas cylinders, however, it’s clear sense to buy rather than rent. Whether you’re an enthusiast welder or sourcing materials for your business, owning rent free welding gas bottles will save you money every time. Rent free welding gas cylinders make sense If you’re a regular welder, the expense of renting gas cylinders adds up quickly; if you run a garage or machine shop, the costs can be monumental. While a backyard hobbyist might go through a bottle every month or so, a professional welder can easily go through a bottle in a couple of days. On average, the purchase of a gas bottle is the equivalent of between about one or two years of rental. That may sound like a lot, but considering the life of use you’ll get out of a gas cylinder, the figures speak for themselves. Lifetime savings with rent free bottles Industrial gas cylinders need to be retested every 10 years. At that point, they must be hydrostatically tested before they can legally be refilled. As long as they pass testing at that point, the cylinder is good for another 10 years. This is our cost, not yours. Many gas cylinders, given the proper amount of care and maintenance, last for decades. The value-added aspect of having the cylinders delivered and swapped over as opposed to having to constantly haul and exchange rented cylinders, makes the decision to buy significantly more appealing. Some buyers worry that owning bottles might leave them stranded, if technology or standards change. As you own the cylinder you are free to sell it or have [...]
What is TIG welding gas?
Tungsten inert gas (TIG) welding is a form of arc welding most commonly used to weld stainless steel, aluminium, magnesium, and copper alloys. No sparks or spatter, flux, slag, smoke or fumes are produced by the TIG welding method. Types of gas used in TIG welding The primary gas for TIG welding is argon (Ar). Often helium (He) is added to increase penetration and fluidity of the weld pool. Argon is what is called a shielding gas. It protects the welding area from oxygen and nitrogen which can cause fusion defects. It’s a colourless, odourless and non-toxic gas. The thickness of the material to be welded will determine whether other gases such as hydrogen (H), carbon dioxide (CO2), helium (He) and oxygen (O2) are needed to be mixed with the argon. These additional gases will help maintain the quality of the weld in thicker metals. The gas flow for TIG welding shouldn’t be lower than four litres per minute and can go as high as 12 litres per minute, depending on the specific task. By adjusting the composition of the welding gas, you can influence the distribution of heat to the weld and by extension, the weld metal cross section and its speed. Gas mixtures that include helium are often more expensive but result in higher quality results for thicker metal. The typical Ar/He gas mixture is 25% He to 75% Ar. Any percentage above 25% He tends to create instability at times. Be informed about TIG welding gas Before using TIG welding gas for any job, it’s important to identify the best method of welding for the material that is to be welded. This may also inform what gas mix to use. Once the appropriate method of welding has been chosen, the thickness of the material to be welded should be noted for the purposes of further determining the gas mix and the proportions of the mixture. Finally, it’s important the correct safety measures [...]
Rent-free welding gas bottles for every occasion
Different Gases used for Welding There’s only one thing better than welding gas bottles for your DIY projects – and that’s rent-free welding gas bottle for your DIY project! Welding can seem like an intimidating process, as it involves energy powerful enough to fuse metal - and that has to be bad for the human body if used improperly. But, by taking the time to acquire the right skills and knowledge, carefully practising and using great equipment like rent-free welding gas bottles, you’ll be completing your DIY projects with ease. Rent-free welding gas bottle types When it comes to welding, you will eventually be faced with the question of what sort of rent-free welding gas bottle you will need. So let’s go through the options: Argon Argon is odourless and non-toxic and it occurs naturally in the atmosphere, but in the form of a gas bottle, it creates an inert and clean environment, free of nitrogen and oxygen. When used for metal fabrication, it is a shielding gas, and regularly blended with CO2 and or Oxygen (O2) for MIG welding – but 100% argon can also be used for TIG welding of any metal of any thickness. Oxygen Oxygen makes up 21% of the atmosphere, and is therefore crucial to all life on Earth. Also odourless like argon, oxygen gas bottles are used for oxyfuel cutting, or in small quantities can be added to shielding mixes. Oxygen can also be used for plasma cutting of steel, so an oxygen rent-free welding gas bottle is a powerful tool. CO2 CO2 is yet another odourless gas that can be packaged for a versatile rent-free welding gas bottle, and like Argon & Oxygen, it is non-flammable. In welding, its most common use is in combination with argon for shielding, although it can also be used in its purest state. Nitrogen There may be a lot of oxygen in the atmosphere – but there is much more nitrogen out there. A tasteless [...]
Rent free welding gas bottles: the benefits
As most who have experience with welding gas bottles will know, rent can quickly start adding up. This is the case whether you’re using them intermittently or every day. The following reasons are the 3 major benefits to choosing a rent free welding gas bottle for all your metalworking needs. 1. Catering for professionals and the home handyman Renting a welding gas bottle may be a viable option for an amateur metalworker performing one-off projects. However, if your use is consistent, then the benefits start to disappear. With renting, you keep it around for the days you do need it, but the days you don’t you’ll be paying for it anyway. This is a waste of money that could be better spent. By purchasing a rent free welding gas bottle, you’ll pay a one off cost, and apart from re-fills, the days you’re not using it, you won’t pay a cent, leaving you much better off in the long run. 2. Rent free welding gas bottles for different types of gas One week, you’re paying rent on an argon gas cylinder, the next oxygen, then CO2 and helium. At times, if you choose to rent, you’ll find yourself needing multiple types at once, and paying likewise. If you know which cylinders you need, you can purchase them outright. Therefore, on the weeks you need two types, you will have two ready to go, without the complicated processes of returning and renting cylinders on a consistent basis. This will save you ample amounts of time and money, making your metal working experience easier and stress free. 3. Domestic shipping Welding gas bottles can be quite heavy. Many rental places require you, the customer, to pick up and return the goods, or come with ridiculously high shipping costs. By purchasing a welding gas bottle outright, we come to you and we have one price. When your cylinder is empty we come back again, collect the empty and replace it with a [...]