Stainless Steel Pipe&Tube
Our goal is to become your true partner in the field of stainless steel pipe&tube in China. GNEE is a professional supplier of austenitic stainless steel, super austenitic stainless steel, duplex steel, super duplex steel and other materials. Non-standard products can be customized according to customer requirements. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards.The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Why Choose Us
Our certification
GNEE Steel (Tianjin) Co., Ltd. has passed SGS certification and has successively obtained ISO9001, ISO14001, and ISO45001 system certifications.
Our equipment
At present, our company has a series of production equipment such as vacuum induction furnaces imported from the United States, vacuum consumable arc furnaces made in Germany, 2800mm four-roll reversible rolling mills, and vacuum annealing furnaces. At the same time, we also have more than 100 sets of various testing instruments, the main equipment includes American non-destructive testing systems, spectrometers, carbon and sulfur testers, universal testing machines, ultrasonic testing systems, fatigue testing machines, etc.
Our services
In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
Advantages of Stainless Steel Pipe&Tube
Stain and corrosion resistant: Corrosion is the main enemy of metal piping. The outer surface of steel, iron and concrete piping can degrade from soil and UV light. Interior walls of piping made from other materials will tend to rust, are damaged through abrasion, or accumulate debris.
Value: When you use stainless steel pipes, you are buying a durable product that will last your business for decades. It is a reliable material that is easy to maintain and install. Stainless steel is low-maintenance, and due to its corrosion-resistant properties, it is unlikely they will need to be replaced for decades.
Strength and versatility: Different materials such as nickel, molybdenum, or nitrogen can be added to stainless steel to enhance its corrosion-resistant properties. Stainless steel can handle extreme temperatures.
Appearance: Exposed stainless steel pipe and fittings are an excellent choice for commercial establishments as the material has a naturally shiny and elegant look.
Environment-friendly: Stainless steel is not a petroleum product. In fact, it doesn’t need to be coated or lined with any materials at all, unlike other piping materials. When you need to replace or dispose of stainless steel piping, it is 100% recyclable, reducing the environmental impact.
Types of Stainless Steel Pipe&Tube
Seamless pipe: A seamless pipe is a pipe that does not contain any seams or weld joints. It’s capable of standing up to intense levels of pressure and also temperatures thanks to the metal itself. It’s used in a wide variety of different oil and gas applications, but they are also used in mechanical and engineering industries too.
Welded pipe: Welded pipes can be used in virtually every industry thanks to its flexibility. However, they fare better in corrosion resistance as opposed to withstanding pressure.
Flanges: Pipe flanges are another important part of your overall piping setup. These come in many forms such as slip-ons, blinds, lap joints, threaded and semis. These are made from durable and sturdy materials to ensure their reliability and high-quality products are always used when creating pipe flanges.
Spectacle blinds: For permanent or long-term solutions that allow for isolation of piping sections, spectacle blinds, spades and spacers are used for convenience. If a piece of machinery or piping section needs to be inspected, then spectacle blinds are used so that you can isolate a certain part of the piping in order to maintain a larger system.
Specification of Stainless Steel Pipe&Tube
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Stainless Steel Tube |
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Form |
Welded and Seamless. |
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Type |
Fluid, Food, Decorative & Structural. |
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Round Tube (mm) |
4.76 OD to 203.2 OD. |
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Spiral welded (mm) |
76.2 OD to 1016 OD. |
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Square (mm) |
12.7 to 150 A/F. |
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Rectangular (mm) |
12.7 x 25.4 to 200 x 100. |
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Grades |
304/304L & 316/316L. |
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Wall Thickness (mm) |
0.7 to 6.0 |
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Processing |
Cut-to-length & polishing. |
Different Grades of Stainless Steel Pipe&Tube
SS 304 Pipes
SS 304 Pipes are popularly known as the “18/8” or “18/10” stainless steel because they contain 18% chromium and 8%-10% nickel respectively. This type of Stainless Steel pipe is highly corrosion-resistant due to being stabilized with titanium and molybdenum. It can also withstand temperatures up to 1,500°F which makes it perfect for general use.
SS 317 Pipes
The Stainless Steel 317 Pipe is an austenitic stainless steel designed to withstand aggressive environments with high temperatures and concentrations of sulfuric acid. It contains additional elements like molybdenum, nickel, and chromium which give it the ability to maintain its integrity even under intense temperatures.
Stainless Steel 316 Pipes
The Stainless Steel 316 Pipe is a higher grade compared to 304 Stainless Steel. It contains 2%-3% molybdenum in addition to chromium and nickel, which makes it highly corrosion-resistant, especially against chloride-ion solutions such as salt water.
Application of Stainless Steel Pipe&Tube
Industrial and chemical processing
Stainless steel piping is widely used in industrial and chemical processing plants due to its corrosion resistance and durability. It is used to transport various chemicals, gasses, and liquids, including corrosive and high-temperature substances.
Oil and gas industry
The oil and gas industry relies heavily on stainless steel piping for its pipelines and equipment. Stainless steel is resistant to corrosion and can withstand high pressures and temperatures, making it suitable for transporting oil and gas over long distances.
Food and beverage industry
Stainless steel piping is a popular choice in the food and beverage industry due to its hygienic properties. It is non-porous, making it resistant to bacteria and easy to clean. This makes it suitable for transporting food and beverages, as well as for use in food processing and packaging.
Water and wastewater treatment
Stainless steel piping is commonly used in water and wastewater treatment plants due to its corrosion resistance and durability. It is used for transporting both clean and wastewater, as well as for various treatment processes.
Construction and architecture
Stainless steel piping is a popular choice in construction and architecture for its strength, durability, and aesthetic appeal. It is commonly used for structural support, such as in building frames and bridges, as well as for decorative purposes, such as handrails and balustrades.
Automotive and transportation
Stainless steel piping is used in the automotive and transportation industries for its strength, durability, and resistance to corrosion. It is commonly used for exhaust systems, as well as for fuel and brake lines.
Production Process of Stainless Steel Pipe&Tube
Rolling and welding
The stainless steel strips are made to gone through various quality checks and are trimmed at edges. They are then fed to the tubes mill by stainless steel pipe manufacturers in India. The strips pass through the number of rollers as per the required size.
Cold- drawing process
In some cases, the required size may not be obtained from the mill directly. Then, the cold operation process can be used to obtain the desired size. In cold drawing process, the tubes or pipes are coated with oxalic and soap solution.
The cleaning and heating phase
The rolled stainless steel pipes thus manufactured are cut to the required lengths depending upon the industrial demand. These stainless pipes and tubes are then subjected to cleaning to remove the dirt. Further, a heat treatment is given to these rolled pipes and tubes to remove the stresses that may occur due to welding and formation processes.
Finishing process
The drawn-out tube or ss pipe is then subjected to cleaning, heat treatment, pickling and straightening. The computerized ink jet marking machine is used to do the marking on the finished pipes or tubes. The pipe or tube is marked with grade of material, size, heat number and the stamp of third party inspection before passing on to stainless steel pipe exporters.
Packing and Shipping of Stainless Steel Pipe&Tube
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Packing |
Waterproof paper and steel strap packaging |
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Shipping |
Shipped by road, sea, rail |
FAQ