"Stainless steel welded pipe" is the product of the development of welding technology. Before 2010, the production process of stainless steel welded pipe was immature, the output was low, and the product quality was uneven. After 2010, as the stainless steel industry's technical requirements for welded pipes became higher and higher, stainless steel welded pipes developed rapidly. At present, stainless steel welded pipes are mainly used in heat exchangers, fluid transportation and other fields.
Stainless Steel Welded Pipe Selection Guide
As the scope of use of stainless steel welded pipes becomes wider and wider, there are many types of welded pipes on the market, and the quality is uneven. Consumers often have no idea where to start when choosing. So, how can we buy good quality stainless steel welded pipes?
1. Material
The corrosion resistance of stainless steel welded pipes mainly depends on the chromium content in the material. The higher the chromium content, the better its corrosion resistance, and vice versa. Common materials on the market include 304, 304L, 316, 316L, etc. Among them, the difference between 304 and 304L is the different carbon content, the latter has a lower carbon content; the difference between 316 and 316L is also the different carbon content, the latter has a low carbon content. The lower the carbon content, the softer the pipe.
Purchase suggestions:
Choose the appropriate material according to the use environment
Ask the supplier to provide material certification (MTC)
2. Thickness
The outer diameter, thickness, length and shape of the stainless steel welded pipe should comply with the provisions of the corresponding standards. Generally speaking, the thicker the wall thickness of the stainless steel welded pipe, the stronger its pressure resistance, and vice versa. Therefore, consumers should pay attention to the thickness mark of the product when purchasing.
Purchase suggestions:
Choose wall thickness according to pressure level
Confirm that the size complies with GB/T 12771 or
ASTM A312 standards
3. Surface treatment
There are various surface treatment methods for stainless steel welded pipes, such as sanding, brushing, mirror, titanium plating, rose gold, etc. Different surface treatment methods will affect the corrosion resistance and aesthetics of stainless steel welded pipes. For example, the surface of the stainless steel welded pipe after sanding is smooth and easy to clean; the surface of the stainless steel welded pipe after brushing has fine lines and has good anti-slip properties.
Purchase suggestions:
Choose the surface treatment method according to the usage scenario
Check whether the surface is uniform and scratch-free
4. Process level
The production process of stainless steel welded pipes includes: unwinding → shearing and butting → welding forming → weld grinding → initial inspection → solid solution → finishing → final inspection → packaging and warehousing. Among them, welding forming and solid solution are the key steps to determine the quality of stainless steel welded pipes. During the welding process, the current, voltage, speed and other parameters should be controlled to ensure the flatness and fusion of the weld; the temperature and time should be controlled during the solid solution process to eliminate welding stress and improve the toughness of the pipe.
Purchase suggestions:
Choose a manufacturer with ISO 9001 certification
Request process flow chart and test report
5. Brand selection
There are many brands of stainless steel welded pipes on the market for consumers to choose from. It is recommended that consumers choose products from well-known brands when purchasing, because these brands usually have high production technology and strict quality control systems, which can ensure the stable and reliable quality of the products. At the same time, consumers can also understand the use and maintenance costs of the products by consulting relevant reviews and word of mouth.
6. After-sales service
In addition to the above points, consumers also need to pay attention to the manufacturer's after-sales service. Good manufacturers will provide consumers with detailed product manuals and usage guides, and respond and solve consumers' questions and problems in a timely manner when problems occur with the product. In addition, some manufacturers will regularly visit consumers to understand the use and maintenance needs of the products.
6 practical tips for purchasing stainless steel welded pipes
1.Choose well-known brands: Big brands are guaranteed
2.Verify certification qualifications: check ISO, CE, PED and other certifications
3.Compare prices and performance: avoid low-priced and low-quality products
4.Visit the factory on site: understand the production equipment and process level
5.Request sample testing: test material, thickness, surface treatment, etc.
6.Pay attention to after-sales service: choose manufacturers that provide technical support and quality assurance
Advantages of high-performance stainless steel welded pipes
Corrosion resistance: One of the most important advantages of high-performance stainless steel welded pipes is corrosion resistance, which makes them very suitable for use in harsh and corrosive environments.
Durability: Highly durable and long-lasting, making it an affordable choice for many applications.
Easy to clean: The tubes are easy to clean and maintain, which makes them ideal for applications with strict hygiene requirements.
Aesthetic appeal: Premium stainless steel welded tubes have a sleek, modern look, making them a popular choice for architecture and design.
Features of premium stainless steel welded tubes
Composition: Made from a mixture of iron, carbon, and chromium, it has corrosion-resistant properties.
High temperature resistance: Able to withstand high temperatures without losing strength or durability.
Weldability: High-performance stainless steel welded tubes are easy to weld, making them ideal for complex or custom designs.
Recyclability: Stainless steel tubes are fully recyclable, making them an environmentally friendly choice for many applications.
When buying stainless steel welded tubes, you need to pay attention to aspects such as material, thickness, surface treatment, craftsmanship level, brand selection, and after-sales service. Only by considering these factors comprehensively can you choose good quality stainless steel welded pipes
High quality stainless steel welded pipes are manufactured by rolling stainless steel plates on machines and then welding the seams, and then the welds are removed from the inside and outside of the pipe by flame cleaning blades. We have various sizes in stock, such as DN50, DN60, DN80, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN550, DN600, please contact us.
See FAQ
Q1: What is the difference between 304 and 316 stainless steel welded pipes?
304: General purpose, suitable for ordinary environments
316: Contains molybdenum, more corrosion-resistant, suitable for high-chlorine environments
Q2: How to judge the quality of stainless steel welded pipes?
Check whether the surface is smooth and crack-free
Use a spectrometer to detect material composition
Request a third-party test report
Q3: What factors affect the price of stainless steel welded pipes?
Material (304,
316, etc.)
Wall thickness and size
Surface treatment method
Production process and certification
English
Español
بالعربية
Phone : 
Whatsapp : 
Email : 
