What is Steel Tanks?
Steel tanks are strong, durable, and economical storage tanks that can store a variety of liquids and solids. They are made from steel, which is less impact resistant than plastic, but they can hold up to 2,50,000 liters of water, while a poly tank can only hold 50,000 liters.
Why Choose Us
Rich Experience
Factory and workers with over 30 years experience; Strict quality inspection process; Advanced processing equipment.
Certificates
Our factory have passed TUV and ISO company system certification; some of our products have passed UN certification. We can cooperate with the application for certification required by customers.
Various products
Our factory has seen hundreds of forms of metal tanks in 30 years of production, and can design according to customers' needs.
Online service
Fast and professional pre-sales and after-sales support, weekly report and videos on production, product inspection report and video, transparent order process.
Stainless Steel Liquid Storage Tank
We are the professional design manufacturer of metal storage and transportation equipment, we have over 30 years manufacturing experience. We supply kinds of stainless steel liquid storage tanks.
Stainless Steel Chemical Storage Tanks
Dalian Baoxiang Packaging Products Co., Ltd. is dedicated to creating unique and high-quality IBC products, adhering to the principles of innovation and excellence. Through relentless effort and unique design concepts, we are committed to delivering an unparalleled experience to our customers. On the path of continuous pursuit of excellence, we always adhere to the utmost pursuit of quality, aiming to become the forefront choice that leads the industry trend.
Stainless Steel Oil Storage Tank
Stainless steel IBC is widely used in food, chemicals, pharmaceuticals, cosmetics industry and many other fields, with high cleanliness, corrosion resistance, environmental protection and many other advantages, in recent years gradually recognized and used.
Stainless Steel Diesel Storage Tank
Our stainless steel frame tote tank for cosmetics embodies an exceptional durability, guaranteeing a remarkable lifespan exceeding 10~20 years.
Stainless Steel Food Grade Beverages Storage Tank
Stainless steel IBC containers reign supreme as the ultimate choice, cherished for their unparalleled strength, exceptional reusability, enduring service life, and adherence to stringent food-grade quality standards.
Stainless Steel Cone Bottom Tank
This kind of stainless steel food grade powder storage tanks with cone bottom offer exceptional corrosion resistance, hygiene safety, durability, and customization options. These advantages make them an essential choice for the food industry, ensuring the integrity and quality of stored food products.
Stainless Steel Potable Water Tank
The Stainless Steel Potable Water Tank is a high-quality storage solution designed specifically for storing drinking water. Made from stainless steel, this tank ensures the highest standards of water quality and safety. With its corrosion-resistant properties, it prevents contamination and maintains the purity of the stored water. The tank is manufactured using advanced techniques, ensuring durability and longevity. It meets stringent industry standards and regulations for potable water storage. The stainless steel construction eliminates the risk of leaching harmful substances into the water, providing a reliable and hygienic storage option. Trust in the Stainless Steel Potable Water Tank for superior quality assurance and peace of mind.
Stainless Steel Wine Storage Tanks
Stainless steel wine storage tanks made by high quality stainless steel material, meet food grade requirements, fit for storage wine, juice and beer.
Stainless Steel Petroleum Storage Tank
Dalian Baoxiang Packaging Products Co., Ltd. is dedicated to creating unique and high-quality IBC products, adhering to the principles of innovation and excellence. Through relentless effort and unique design concepts, we are committed to delivering an unparalleled experience to our customers. On the path of continuous pursuit of excellence, we always adhere to the utmost pursuit of quality, aiming to become the forefront choice that leads the industry trend.
Benefits of Welded Steel Storage Tanks
Most of our projects are welded steel storage tanks rather than bolted tanks. Welded steel storage tanks have several advantages over bolted steel storage tanks
Some advantages include:
Reliability
With improved standards over the past few decades, a welded steel storage tank can last many more years. The longevity and durability mean a welded steel storage tank is resistant to corrosion, leaking, and the elements.
Lower cost
Thanks to their reliability, the total cost of owning a welded steel storage tank is lower. With yearly maintenance, repairs (if any!) are usually simple.
Versatility
The visual design possibilities are endless.
Applications for Stainless Steel Storage Tanks
Stainless steel storage tanks have a variety of uses, but most fall under three main categories:
Chemicals
One of the most popular uses for stainless steel storage tanks is chemical storage as a strong, reliable storage system is required to resist corrosion and protect against easy puncture that could lead to an environmental mess.
Chemical stainless steel storage tanks can take the form of stationary structures set in their foundations or nurse tanks - smaller tanks that are designed to be moved around in the field and that can withstand the rigors of being out in the open and moved on a trailer.
Feed
For ranches, feed for livestock is one of the most plentiful materials used on a daily basis. Having a ready supply of feed keeps your cows, pigs, horses, chickens, and goats happy and healthy.
Two key aspects of stainless steel storage tanks for feed are how the tanks will be filled and how they will be unloaded. The right custom metal fabricator will be able to create an ideal product to suit any situation - for example, outfitting a tank with a hopper to ease feed dispersal and fabricating structural steel legs to create a throughway beneath the storage tank so distribution trucks can drive underneath for loading.
Water
Irrigation, manufacturing, and fire-protection services require a ready supply of water to hand. For these applications, a conical bottom can be designed for stainless steel storage tanks to ensure quick and complete drainage of liquids.
Potable water can also be stored in stainless steel storage tanks for use in the food and beverage industry.
Types of Steel Storage Tanks
When selecting a storage tank to fill the needs of a city or industry, a comprehensive evaluation should be made of all designs available. Members of the Steel Tank Institute/Steel Plate Fabricators Association (STI/SPFA) give important factors, such as potential service and economic considerations, the careful attention they deserve.
Flared Steel Column (Golf Ball and Tee)
The flared steel column design is common and recognizable. One of the most common and most recognizable designs, these tanks can hold approximately 2 million gallons of water. Many such tanks are designed with elaborate exterior colors and graphics representative of the facilities and communities the tanks serve. As the photos here demonstrate, the shapes of the tanks can be just as varied as their surface appearance.
Fluted Steel Column (Hydropillar)
These common tanks are supported by a large diameter fluted steel column. An attractive feature about hydropillar tanks is that the space inside the pillar can be used for offices, meeting rooms or equipment and machinery storage.The pillar also provides sufficient space for multiple floors.
Multi-Column (Leg Type)
This tank is elevated by a series of steel columns around its perimeter.The multi-column design was common in the past, but has been replaced in recent years with less expensive designs. STI/SPFA's Century Club honors water tanks that have been in continuous service for 100 years or more. The multi-column, leg type elevated tank design is common among Century Club members, as is the standpipe design.
Standpipes
These tanks utilize gravity to create pressure in a water supply system. For a tall building, for instance, where the pressure from water mains at street level is insufficient to raise the water to upper floors, water is pumped up to a standpipe and fed by gravity into the system.
Flat Bottom Reservoir Tanks
Reservoir tanks come in a broad range of sizes, with the diameter exceeding the height. Reservoirs are economical and effective storage, especially on higher ground. Since these tanks have a lower profile, it is easy to mask them with foliage.
Stainless Steel vs Carbon Steel Tanks and Vessels
More companies are choosing to build stainless steel tanks over carbon steel tanks and the reasons are simple. Stainless steel is much more versatile, longer lasting, and generally suited to different industries with special needs.
Stainless steel tanks can cost less to manufacture than carbon tanks, are more resistant to temperature induced cracking (necessary for the extreme Australian weather), need little to no maintenance (important for keeping bottom line costs down), and when correctly applied, will not corrode anywhere near as quickly as carbon steel tanks. Finally, they last much longer than carbon steel tanks – tanks made from stainless steel can be used for decades without requiring extensive refurbishment or replacement.
What is stainless steel and carbon steel made of?
Iron and carbon are two of the fundamental elements that make up both materials. Where the two materials differ is that a minimum of 10.5 percent chromium is added to make stainless steel. Chromium is the special ingredient that protects stainless steel from corrosion.
Adding amounts of alloying elements like molybdenum, nickel, manganese, titanium and others determine the type of grade and its suitability to corrosion resistance, strength, hardness and heat resistance.
Stainless steel material grades have advanced in recent years because it can be customised to specific industry needs. LDX2101, for example, provides superior strength and corrosion resistance while maintaining comparable costs to more traditional grades such as 304 and 316.
Stainless steel tank vs carbon steel tank thicknesses and weight
Although stainless steel and carbon steel tank fabrication practices are traditionally similar, welding durations on carbon steel tanks are higher, particularly with coded designs such as API650, AS1210 and AS1692. Consumables for stainless steel tanks are slightly higher; however, it's offset by the overall reduction in tank weight due to stainless steel's higher strength.
The table below shows weight comparisons between a 1,500,000L storage tank, 12.5m diameter x 12.5m high shell, material thicknesses as per API650 design code, including a corrosion allowance of 0.25mm for stainless steel and 3mm carbon steel.
Table: Weight Comparison of 1,500,000L API650 Storage Tank.
| Material | Thickness (mm) | 316SS (kg) | Thickness (mm) | LDX SS (kg) | Thickness (mm) | Carbon Steel (kg) |
| Top | 6 | 7,995 | 5 | 6,645 | 6 | 10,205 |
| Shell | 5, 6, 8 | 24,565 | 5 | 20,069 | 6, 8, 10 | 30,249 |
| Floor | 5 | 6,024 | 5 | 6,024 | 8 | 9,250 |
| Total Weight | 38,584 | 23,738 | 46,142 |
Cost savings from fabricating stainless steel tanks
Continuing with the 1,500,000L tank example, there are additional costs associated with surface treatment on carbon steel tanks, while stainless steel tanks don't incur these costs. With properly selected types and grades, stainless steel is resistant to tank contents, the external environment and doesn't need painting. Your life cycle cost of ownership becomes significantly less.
Some more points to consider:
Fabricating carbon steel tanks requires preheating and post heating for welds. Carbon steel tanks also need post welding treatment and radiography testing inspection. Depending on design parameters, these processes aren't required for stainless steel tanks
Grit blasting for paint preparation creates airborne particles that can contaminate surrounding properties, and dirty equipment
Grit blasting and painting for carbon steel tanks requires personnel to work at heights. Stainless steel tanks eliminate the need to paint at heights, reducing the risks of falls and WHS issues
On-site duration – fabrication of an A&G stainless steel tank is generally much quicker than a carbon steel tank, specifically field-erected vessels
Painting outdoors can affect the environment, the environmental impact is reduced with a stainless steel tank
Comparing maintenance costs: Stainless steel tanks vs carbon steel tanks and vessels
Painting, maintenance and rework costs are indicative of scheduled cycles and vary depending on type of product stored and facility location.
Tanks storing aggressive materials, or near coastal environments, may cost more in maintenance. Please use the table below as a general guide only. Depending on the individual application and process, costs can vary greatly. Of significant consideration (not listed below), is the 'Out of Service Costs' (when the tank is not being used) for carbon steel tanks during regular maintenance works.
There is a huge variety of stainless steel grades available for handling different chemicals. As such, the performance at both high and low temperatures as well as corrosion resistance, strength, and toughness, differ between grades. The following three grades are commonly used to manufacture stainless steel tanks.
Stainless Steel 304 and 304L
With the exception of steel-forming alloys, stainless steel 304 is made up of 18–20% chromium, 8–11% nickel, and 2% manganese. This type of stainless steel is the most popular since it is less expensive than other grades and offers sufficient corrosion resistance for the majority of uses. It is versatile and suitable for the formation of a wide variety of products due to its austenitic metallurgical structure.
Stainless Steel 316 and 316L
The following elements are found in stainless steel 316:
16–18% chromium
10–14% nickel
2% manganese
2-3% molybdenum
Due to the molybdenum addition, this grade is more corrosion-resistant than stainless steel 304. To combat the increased molybdenum's ability to create ferritic minerals, it contains more nickel.
Duplex Stainless Steel
Duplex stainless steel contains the following elements:
20-28% chromium
2-5% molybdenum
5-8% nickel
This grade of stainless steel has greater corrosion resistance and mechanical strength due to its increased chromium and molybdenum content. Due to its lower nickel content and higher strength for a given thickness, Duplex stainless steel is more affordable to use than 316 since it allows for the use of thinner plates and sheets.
Our Factory
Dalian Baoxiang Packaging Products Co., Ltd.'s factory is located in the Ganjingzi Industrial Park in Dalian, covering an area of 5000 square meters. Our factory is well-equipped with various production machinery, including several specialized machines imported from Germany. With strong production capacity, we can produce 300-400 sets of standard containers per month. For custom-made products, delivery schedules are determined after finalizing the drawings, ensuring accurate and on-time delivery without delays. Our factory has a professional management team and experienced production staff.
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