Stainless Steel Water Tanks

1000s of Different Sizes. Delivered To Your Door.
Tanks Come With Extended Warranty & Are Fire Resistant.

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Premium Stainless Steel Water Tanks

Crafted for Durability and Sustainability

At Select Water Tanks, we specialise in crafting top-quality Stainless Steel Water Tanks tailored to your exact specifications, right here at our Brisbane factory. Our extensive range includes Stainless Steel Slimline, Round, Jumbo, and Under Deck Water Tanks, offering capacities from 500 to 29,800 Litres, with various size options in between. We manufacture slimline water tanks ranging from 2,000 to 8,000 litres, ensuring you find the perfect size to fit your space and water storage needs. Additionally, we offer round water tanks ranging from 300 up to 29,800 litres, providing versatility and ample capacity for various applications.


With Stainless Steel’s exceptional corrosion resistance properties, our tanks not only boast longevity but also maintain their pristine appearance throughout their lifespan. Compared to cheaper alternatives, our Stainless Steel water tanks ultimately offer superior value, thanks to their durability and low maintenance requirements.

Our Stainless Steel tanks are constructed entirely from stainless steel metal, without any plastic liners. They are manufactured with low carbon emissions and are fully recyclable, aligning with our commitment to environmental sustainability. Additionally, Stainless Steel typically contains a substantial portion of recycled steel, further reducing its environmental footprint.

Why Choose Stainless Steel Water Tanks?

Select Water Tanks advocates for Stainless Steel Water Tanks for several compelling reasons. Not only do they outlast other materials, providing exceptional value over time, but they also offer environmental benefits. By opting for Stainless Steel, you’re investing in a sustainable solution that benefits both you and the planet

At Select Water Tanks we firmly believe that Stainless Steel Water tanks are the best choice for a number of reasons. They’re longer-lasting, offer you fantastic value for money over their lifespan, and at the end of their life are fully recyclable – better for you, better for the planet!

Learn more about Stainless Steel tanks by checking out our articles: Are Stainless Steel Rainwater Tanks Worth It? Is Stainless Steel Good for Long-Term Water Storage?

15,528L Stainless Steel Round water tank
15,528L Stainless Steel Round.

View our full range of 15,000 Litre Water Tanks

5336L Stainless Steel Round
5336L Stainless Steel Round.

View our full range of 5,000 Litre Water Tanks

22,500L Stainless Steel Round Water Tanks
22,500L Stainless Steel Rounds

View our full range of 22,500 Litre Water Tanks

2000 litre Stainless Steel Water Tank
2000 litre Stainless Steel Slimline

View our full range of 2,000 Litre Slimline Water Tanks

Stainless Steel 304 / 316 Grades

stainless steel 304 water tank

304 Grade Stainless Steel

Grade 304 stainless steel is generally regarded as the most common austenitic stainless steel. It contains high nickel content that is typically between 8 and 10.5 percent by weight and a high amount of chromium at approximately 18 to 20 percent by weight. Other major alloying elements include manganese, silicon, and carbon. The remainder of the chemical composition is primarily iron. In most applications the steel is used where its corrosion resistance gives long lasting appearance and service life. The ease of cleaning and of maintaining a hygienic surface on the steel make it excellent for many purposes.

Our 304 Grade is a good choice if you live inland away from the salt corrosive sea.

316 Grade Stainless Steel

Grade 316 Stainless Steel is a metal alloy, made up of steel mixed with elements such as chromium, nickel, molybdenum, silicon, aluminum, and carbon. Iron mixed with carbon to produce steel is the main component of stainless steel. Chromium is added to make it resistant to rust.

Water tanks made from Grade 316 are recommended for sea-side environments.  They can be easily cleaned, resists organic chemicals, and a wide variety of inorganic chemicals.

Here’s a tip!  Fresh water and air react with the chromium oxide compound that forms a passive layer over the steel,  if damaged the passive film reconstitutes itself. So make sure you give your 316 Stainless Steel water tank an occasional rinse with rainwater.

stainless steel 304 water tank

Stainless Steel Water Tanks FAQs

Are stainless steel water tanks better?

Stainless steel water tanks have several advantages that make them a popular choice in certain applications. Here are some reasons why stainless steel water tanks are considered better in certain situations:

Beautiful Stainless Steel is a favorited material of architects and designers of beautiful homes. Your Stainless Steel tank will maintain its appearance for its natural life.

Cost Effective Over its life cycle, a Stainless Steel water tank with it’s 30 year warranty will ultimately be very cost-effective.

Fire Resistant Scientists have found that stainless steel water tanks maintain their structural integrity and have only minor water loss when exposed to bushfires. We can fit our tanks with fire-fighting compliant fittings to meet local Council requirements.

Durability: Stainless steel is highly durable and resistant to corrosion, which makes it ideal for long-term water storage. It can withstand various weather conditions and is less likely to deteriorate over time compared to other materials like plastic or concrete.

Hygiene: Stainless steel is a non-porous material, which means it does not harbor bacteria, mold, or algae growth. This makes it easier to maintain good water quality and reduces the risk of contamination.

Strength: Stainless steel has high tensile strength, making it less prone to structural failures or leaks. It can withstand high pressure and is suitable for storing large volumes of water, which is particularly important in industrial or commercial applications.

Longevity: A Select Stainless Steel water tank has a minimum life expectancy of 30 years. The corrosion resistance properties of Stainless Steel means the tank will not only last for a long time but it will always look brand new.

Fully Recyclable Our stainless steel tanks have no plastic liners and they create a low carbon emission footprint in production. They are fully recyclable. The main mineral elements of stainless steel are highly valuable and can be easily recovered and re-used.

Do stainless steel water tanks rust?
We recommend regular maintenance and care to ensure your tank is free from debris build up and given a rinse down with fresh water intermittently. In coastal areas, we recommend purchasing the marine grade [316] stainless steel option, as it is more suited to the marine environment.
What Grade Stainless Steel is best for Water Tank?
The best grade of stainless steel for a water tank depends on the specific requirements of the application. However, based on the information provided, here is a summary:

304 Grade Stainless Steel Tanks: Grade 304 stainless steel is commonly used for water tanks. It has a high nickel content (8-10.5%) and chromium content (18-20%), along with other alloying elements. Grade 304 offers good corrosion resistance and is suitable for most freshwater storage applications. It is easy to clean and maintain a hygienic surface, making it a popular choice for various purposes.

316 Grade Stainless Steel Tanks: Grade 316 stainless steel is an alloy that contains elements like chromium, nickel, molybdenum, and others. It offers enhanced corrosion resistance compared to 304 stainless steel. Grade 316 is particularly suitable for water tanks in sea-side environments due to its resistance against rust and a wide range of organic and inorganic chemicals.

Inland areas away from corrosive sea environments generally utilise 304 grade stainless steel tanks, while coastal or marine areas may benefit from the added corrosion resistance of 316 grade stainless steel tanks. Regular rinsing with rainwater can help maintain the passive film on 316 stainless steel tanks.

Ultimately, the choice between 304 and 316 grade stainless steel depends on factors such as the water conditions, location, budget, and the desired level of corrosion resistance. Consulting with experts or professionals familiar with local regulations can help determine the most suitable grade for your specific water tank application.

Does Stainless Steel Cost More?

On average, round stainless steel tanks made from Premium grade 304 stainless steel are approximately $500 to $1000 more than the equivalent tanks made from Aquaplate/Colorbond.

For example, a 10,000 litre round tank made from stainless steel is approximately $3295 whereas a similar one made from Aquaplate/Colorbond is approximately $2685.

The price differential is slightly more for slimline tanks because of the inclusion of internal stainless-steel rods to strengthen the slimline shape of the tanks.

The price differential is also greater if Marine grade 316 stainless steel is used to construct the tanks.

For more information on pricing see our example Water Tank Prices .

Stainless Steel Water Tanks

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