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Welded Pipe Stainless Steel Tube

Your Professional Welded Pipe Stainless Steel Tube Manufacturer in China!

Gnee Steel (tianjin) Co., Ltd is a supply chain integrated enterprise including steel plate, coil, profile, outdoor landscape design and processing. Founded in 2008, with 5 million RMB registered capital, Gnee has made impressive progress and development in steel market with Gnee People more than 18 years hard fighting. The company has always focused on providing quality products and excellent customer service and has earned a good reputation in the industry. In the future, the company will continue to invest in technology and equipment to further improve production capacity and product quality.

Why Choose Us

Advanced Equipment

We have comprehensive and professional equipment including: cold rolling mills, hot rolling mills, various welding equipment, cooling equipment and testing equipment.

Broad Market

We have cooperation partners in 160 countries and regions around the world, with more than 18 major partners, and have received consistent praise from them.

Quality Control

Our factory's products are produced using domestic advanced production technology and independent research and development processes, and have passed ISO90001 quality management system certification and safety production standardization construction.

Perfect Service System

We provide one-to-one service. If you have any questions, you can contact us at any time and we will provide you with professional answers and suggestions.

Rich Experience

Our company was established in 2008 and has 18 years of experience in the industry. And the factory has more than 200 experienced employees.

Certification

We have passed qualification certification in many countries and have multiple certification certificates.

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Introduction of Welded Pipe Stainless Steel Tube

Welded pipe stainless steel tube is manufactured by rolling stainless steel plate on a machine then welding the seam. A scarfing blade then removes the weld flash from the inside and outside the pipe. Many processes heat treats the welding zone to make the seam less visible and provides a more complete finish to the pipe. The pipes can be used for transporting liquids and gases in industrial settings and carrying hot or cold water on plumbing projects. These pipes provide effective heat and corrosion resistance, making them an ideal option for various applications. And offer durability and sturdiness for their strong joints and seamless construction.

5 Benefits Of Using Welded Pipe Stainless Steel Tubes

Corrosion Resistance
One of the primary benefits of using welded pipe stainless steel tubes is their excellent corrosion resistance. They can withstand high temperatures, harsh chemicals, and exposure to moisture without rusting or corroding. This makes them an ideal choice for applications where the pipes come in contact with corrosive liquids or gases, such as chemical processing plants and oil refineries.

Durability
Welded pipe stainless steel tubes are known for their durability and strength. They can withstand heavy loads, high pressures, and extreme temperatures without cracking or breaking. This makes them an ideal choice for applications that require high strength and durability, such as oil and gas pipelines, heat exchangers, and boilers.

Easy Maintenance
Welded pipe stainless steel tubes require minimal maintenance compared to other types of pipes. They are easy to clean and maintain and do not require any special cleaning agents or procedures. This makes them ideal for applications where hygiene and cleanliness are critical, such as food processing and pharmaceuticals.

Versatility
Welded pipe stainless steel tubes are versatile and can be used in various applications. They are suitable for transporting various liquids and gases, including water, oil, gas, and chemicals. They can also be used for structural purposes, such as building supports and handrails.

Cost-Effective
While welded pipe stainless steel tubes may be more expensive than other pipes, they offer a long-term, cost-effective solution. They require minimal maintenance, have a longer lifespan, and not need to be replaced frequently. This makes them a cost-effective option for applications where long-term durability and reliability are crucial.

The Versatility and Wide Range of Applications of Welded Pipe Stainless Steel Tubes

Chemical Processing Industry
One of the most common applications of welded pipe stainless steel tubes is in the chemical industry. These pipes are widely used in manufacturing chemical processing equipment that handles and transfers harsh chemicals, gases, and liquids. Since they have excellent heat and corrosion resistance properties, they are ideal for chemical plants. The welded pipe stainless steel tubes can handle harsh environments with high temperatures and corrosive chemicals, making them perfect for applications in chemical processing.

Food Processing Industry
Another industry that has widely utilized welded pipe stainless steel tubes is the food processing industry. In food processing plants, pipes that transfer food-grade liquids such as dairy products, juices, and other consumable foods must meet specific food-grade standards. Welded pipe stainless steel tubes are highly resistant to contamination from food acids and chemicals, making them ideal for transporting food-grade liquids. They are also extremely easy to clean and maintain.

Oil and Gas Industry
The oil and gas industry is another sector that has extensively employed welded pipe stainless steel tubes. This type of pipe is ideal for use in hostile and corrosive environments such as offshore platforms, refineries, and gas plants. Since welded pipe stainless steel tubes can withstand high pressure, extreme temperatures, and corrosive substances, they are ideal for use as pipelines for transferring oil and gas.

Power Generation Industry
The power generation industry widely utilizes welded pipe stainless steel tubes. These pipes are perfect for use in power stations in areas such as boilers, turbines, and nuclear power plants. Welded pipe stainless steel tubes are known for their high-temperature strength and creep resistance, making them ideal for carrying hot steam and gases in power plants.

Aerospace and Aviation Industry
The aerospace and aviation industries have also widely used welded pipe stainless steel tubes in their planes and spacecraft. These pipes are used in different areas within the aircraft, such as the engines, airframe, and heat exchangers. Welded pipe stainless steel tubes are perfect for the aviation industry since they have strong resistance to oxidation and high-temperature strength.

The Process of Manufacturing Welded Pipe Stainless Steel Tube

Raw Material Selection
The process begins with the selection of high-quality raw materials, usually stainless steel billets or coils. The choice of stainless steel grade depends on the specific application and the required properties of the finished pipes.

The Rolling and Welding Stage
To begin our process, we first need to go through the rolling and welding stage. The stainless steel is placed through a checking process and cut at the edges in this stage. The stainless steel is pushed through and morphed into its required tubular size with a rolling machine. After being pressed and turned through the rolling machine, the edges are welded through a heating process. The welding process joins the rolled metals together using an electric arc that has a built-in electrode.

Cleaning and Warming Stage
In this stage, steel tubes are lined up on a fabricator and cut to a required length before heading to the following process. The cleaning in this stage helps remove dirt from the pipes, and then once treated with heat, the rolled pipes and tubes are stripped of any stresses that can come up in the welding and formation process. The heat treatment given to stainless steel pipes and tubing is done with a furnace—the furnace is actually equipped with temperature recorders and controllers, as this can help tremendously with containing temperature and controlling the way stainless steel is cured. After heating is finished, the stainless steel pipes and tubing are taken through a pickling segment where they're straightened out, and scales are removed from its surface.

Cold-Drawing Stage
Sometimes, the required size isn't obtained when the steel is brought through the mill directly. When using the cold-drawing process, the desired size is achieved when the pipes and tubing are coated with oxalic and soap solution and dragged over die plugs—the oxalic and soap solution help reduce friction when going through the cold cycle.

The Finishing Process
The final process is the finisher. Once the process of manufacturing welded pipe stainless steel tubes and tubing is completed, you'll now have to take them to a jet printer. The tubes are taken through, piece by piece, and marked with their grade of material, size, heat number, and third-party inspection stamp before being passed onto exporters. After everything is engraved, the pipes are taken through testing for quality and other checks. Finally, everything is packed and dispatched.

What Should be Considered When Choose Welded Pipe Stainless Steel Tube

Determine the Application Requirements
The first step to selecting the right welded pipe stainless steel tubes is determining your project's application requirements. Consider your application's temperature, pressure, and chemical resistance requirements and select a stainless steel grade that can withstand these conditions. For example, if you're using pipes for high-temperature applications, choose a grade with high-temperature resistance.

Consider Your Project Requirements
When selecting the right welded pipe stainless steel tubes for your project, it is important to consider its requirements. It would help if you considered factors such as size, pressure rating, temperature rating, corrosion resistance, and cost. This will help you determine which type of welded pipe stainless steel tube is best suited for your project.

Consider the Pipe and Tube Size
The size of the welded pipe stainless steel tubes is an essential factor to consider. The size should match your project's requirements, so you don't have to compromise on the overall performance. The size determines the flow rate, pressure drop, and pipe weight. Consider the diameter, wall thickness, and length of the pipes, depending on your application needs. For instance, choose a large-diameter pipe if you need high-flow rates. On the other hand, if you need to transport gases or fluids with high-pressure requirements, use a thicker wall-thickness pipe.

Understand the Different Grades of Stainless Steel
When selecting welded pipe stainless steel tube, it is important to understand the different grades available. There are several grades of stainless steel, including 304L, 316L, and 321H. Each grade has properties and characteristics that make it suitable for certain applications. Selecting a grade that meets your project requirements in terms of strength, corrosion resistance, and temperature tolerance is important.

Choose the Right Finish
The finish of the welded pipe stainless steel tubes plays a crucial role in their aesthetics and corrosion resistance properties. Various finishes are available, such as polished, matte, and brushed. However, each finish has a unique purpose, so choose the right one depending on your application needs. For example, if you use pipes in food processing or medical applications, select a polished finish that is easy to clean and maintain.

Verify the Tolerance and Quality Standards
The tolerance and quality standards of the welded pipe stainless steel tubes are vital to ensure optimal performance and safety. Verify whether the pipes meet industry standards, such as ASTM, ASME, and ANSI. Also, check the tolerance requirements, such as wall thickness, straightness, roundness, and surface finish. Choosing pipes with the right tolerance and quality standards can reduce the risk of leaks, cracks, and failures.

Consider the Cost and Availability
The cost and availability are the final factors to consider when selecting welded pipe stainless steel tubes. Although you may want to invest in high-quality pipes and tubes, consider whether they fit within your budget. Also, check the availability of the pipes and tubes to ensure your project's completion is on time. Consider working with a trusted supplier who can provide quality pipes and tubes at a reasonable price and timely delivery.

5 Tips For Cleaning Welded Pipe Stainless Steel Tube

Routine Cleaning
To carry out routine cleaning of welded pipe stainless steel tubes, you can clean them with soap, mild detergent, or ammonia solutions in warm water. You can apply any of these agents with a soft cloth or nylon sponge. After this, you need to rinse and dry it with a soft cloth. It helps to remove ordinary soiling. While cleaning welded pipe stainless steel tube, use mild non-scratching abrasive powders, and avoid using standard carbon steel brushes or steel wool. It can leave articles embedded on the surface, which can trigger rusting.

Solvent Cleaning
You can use organic solvents to remove stains that are fresh and have not yet oxidized or decomposed. The solvent should not contain chlorine, like acetone, methyl alcohol, and mineral spirits. You can immerse smaller articles into the solvents or use the vapor cleaning method to control the discharge of solvents. Wipe it post-cleaning.

For Moderate Soiling
You can use a mild abrasive cleaner for moderate soiling and light staining and use a soft cloth, nylon scouring pad, or a soft bristle brush. In the direction of the polished finish, use the material to make long, even strokes. You need to avoid using a circular rubbing action. After you clean it, you need to rinse and dry-wipe to complete the process and remove water stains.

For Heavier Soiling
For more intense staining and heavy soiling, you can use ammonia solution or warm/hot detergents. You can also use acidic cleaners and follow the cleaning procedures mentioned for moderate soiling.

Passivating Treatment
To maximize the corrosion resistance capability of welded pipe stainless steel tube and remove surface contaminants, you can use the passivation treatment. First, you need to clean the stainless steel surface thoroughly and remove the pollutants. After this, you need to enter the metal in a passivating acid bath. Depending on the chromium content and the machinability properties of the stainless steel grade, the nature of the passivation treatment will vary.

Maintenance of Welded Pipe Stainless Steel Tube

Routine Inspection

Regular visual inspections are essential for identifying signs of corrosion, leaks, or damage. Trained personnel should conduct thorough inspections to detect any abnormalities or potential issues promptly.

Cleaning and Degreasing

Cleaning welded pipe stainless steel tubes with a mild detergent and water solution helps remove dirt, grease, and contaminants that can accelerate corrosion. Avoid abrasive cleaners or steel brushes, as they may scratch the surface and compromise the protective oxide layer.

Repair and Maintenance

Address any identified issues or damages promptly to prevent further deterioration. Repair or replace damaged components, such as seals or support brackets, to maintain system integrity. Regular lubrication of moving parts, such as valves and hinges, helps prevent friction and wear.

Our Factory

As a well-known steel pipe manufacturer and supplier in China, our factory has multiple steel pipe production lines, including 5 hot-rolled seamless steel pipe production lines, 3 cold-rolled seamless steel pipe production lines, 8 stainless steel pipe production lines, and 6 resistance welded pipe production lines, 5 capacitor welded pipe production lines, 3 3PE anti-corrosion processing production lines, 2 2PE anti-corrosion processing production lines, 2 galvanizing processing production lines, etc.

Our Certification

Ultimate FAQ Guide to Welded Pipe Stainless Steel Tube

Q: What are Properties of Welded Pipe Stainless Steel Tube?

A: Welded pipe stainless steel tubes are manufacture from premium quality stainless steel materials, which offer excellent mechanical properties, including high strength, toughness, corrosion resistance, and excellent welding characteristics. These pipes are widely utilized in various industries where the safety and reliability of the pipes are critical, like the chemical, petrochemical, oil and gas, and food processing industries.

Q: What is the difference between welded pipe stainless steel tube and welded pipe ordinary steel tube?

A: All steel is iron based, but welded pipe stainless steel tube contains chromium at 10% or more by weight. Chromium, provides corrosion resistance and a polished appearance, making it highly resistant to rust and staining, while welded pipe ordinary steel tube does not have these properties, making it susceptible to corrosion and staining. Welded pipe ordinary steel tube is used in a wide range of applications, from construction to manufacturing, where corrosion resistance is not a primary concern.

Q: What are the benefits of welded pipe stainless steel tube?

A: Thanks to its corrosion resistance, fire and heat resistance, hygiene, aesthetic appeal, strength-to-weight advantage, ease of fabrication, and impact resistance, welded pipe stainless steel tube has been widely used across industries for decades.

Q: Is welded pipe stainless steel tube bendable?

A: Stainless steel is a very hard material, so it can present certain challenges for tube bending operations. However, it also offers excellent ductility and can be easily formed into various shapes using the proper tools and machinery.

Q: What is the use of welded pipe, stainless steel tube?

A: Welded pipe stainless steel tube resists oxidation, making it a low-maintenance solution that is suitable for high temperature and chemical applications. Because it is easily cleaned and sanitized, welded pipe stainless steel tube is also desired for applications involving food, beverages, and pharmaceutical applications.

Q: How is a welded pipe stainless steel tube made?

A: A welded pipe stainless steel tube is made from a flat steel strip, usually slit from a coil. This strip is pushed through a series of rollers, bending the strip into a round tube shape. Finally, the ends of the strip are welded together, often by ERW technology (Electric Resistance Welding). This is a form of pressure welding which utilizes heat generated by electrical resistance of the material. No extra welding material is added. Welded pipes are cut to fix lengths, usually 6 or 12 m.

Q: Can welded pipe stainless steel tube be threaded?

A: Aside from standard stainless steel nipples, custom stainless steel pipe threading service is available for welded pipe stainless steel tube. Your job may require a specific length or thread combination, and we can meet your custom requirements.

Q: How can I tell what grade welded pipe stainless steel tube I have?

A: Many stainless steel products are labeled or stamped with their grade. Look for markings such as "304," "316," "430," etc., which indicate the welded pipe stainless steel tube grade. This is the quickest and most reliable way to identify the type.

Q: Will a magnet stick to welded pipe stainless steel tube?

A: In summary, whether a magnet will stick to welded pipe stainless steel tube depends on the type of stainless steel and the strength of the magnet. Austenite stainless steels are generally non-magnetic, while ferritin and martensite stainless steels are magnetic.

Q: Does welded pipe stainless steel tube crack easily?

A: Although no stainless steel grade is totally immune to chloride SCC, the relative resistance of stainless steels varies substantially. The combination of tensile stress and a specific corrosive environment can crack welded pipe stainless steel tubes.

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional welded pipe stainless steel tube manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale discount welded pipe stainless steel tube for sale here and get free sample from our factory. Good service and low price are available.

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