1、 What are the specifications and dimensions of stainless steel welded pipes?
The size of stainless steel welded pipe refers to the outer diameter, wall thickness, length, etc. of the welded pipe. The size of stainless steel welded pipe can be selected according to different needs and standards. The following are some common sizes of stainless steel welded pipe:
1. Outer diameter: The outer diameter of stainless steel welded pipes is usually marked in millimeters (mm). Common outer diameters include 6mm, 8mm, 10mm, 22mm, 25mm, 32mm, 38mm, 40mm, 51mm, 60mm, 63mm, 76mm, 89mm, 114.3mm, and can even reach 325mm. In addition, there are some common size specifications such as DN15, DN20, DN25, DN32, etc., which correspond to different outer diameters. The larger the outer diameter, the stronger the load-bearing capacity of the pipe.
2. Wall thickness: The wall thickness of stainless steel welded pipes is also marked in millimeters (mm). Common wall thicknesses include 0.5mm, 1.0mm, 1.5mm, 2mm, 2.5mm, 3mm, etc., and can even reach 8.0mm or thicker. The thicker the pipe, the stronger its compressive strength.
3. Length: The length of stainless steel welded pipes is usually marked in meters (m). Common lengths include 3m, 4m, 6m, 9m, 12m, etc., and can even reach 24m. Depending on the specific usage scenario and needs, the appropriate length of stainless steel welded pipe can be selected.
In addition, according to international standards, the dimensions of stainless steel welded pipes can also be marked in imperial units, such as inches. Common imperial sizes include 1/2 inch, 3/4 inch, etc. It should be noted that different countries and regions may have different standards and regulations. Therefore, when choosing the size of stainless steel welded pipes, corresponding standards and specifications should be referred to according to specific situations.
2、 How to choose stainless steel welded pipe
When choosing stainless steel welded pipes, the following key factors can be considered:
1. Specifications and dimensions: Determine the required pipe diameter, wall thickness, and length based on specific application scenarios and needs. There are various specifications and sizes of stainless steel welded pipes, and when selecting, it is important to ensure that the selected specifications meet the actual requirements.
2. Material: The material of stainless steel welded pipes directly affects their performance and service life. Common materials include austenitic stainless steel, duplex stainless steel, etc. When selecting, materials with appropriate corrosion resistance, mechanical properties, and processing properties should be chosen according to the needs of the application scenario.
3. Welding quality: Welding quality is one of the important indicators of stainless steel welded pipes. High quality welded pipes should have uniform welds, no porosity, no slag inclusion, and no other defects. When selecting, you can check the product's welding quality certificate or conduct actual testing.
4. Surface quality: The surface quality of stainless steel welded pipes also affects their aesthetics and service life. High quality welded pipe surfaces should be smooth, scratch free, rust free and other defects. When selecting, the appearance quality of the product can be observed or actual testing can be carried out.
5. Production standards and certifications: Selecting stainless steel welded pipes that meet relevant production standards and certifications can ensure their reliable quality. For example, GB/T 12770-2002 and GB/T 12771-2008 are the main production standards for stainless steel welded pipes in China, and some internationally renowned certification organizations such as ISO and T Ü V can also provide authoritative certification services.
6. Supplier reputation and service: Choosing suppliers with good reputation and service can ensure high product quality and timely after-sales service. When choosing a supplier, you can learn about their history, scale, product range, customer reviews, and other information.
In short, when choosing stainless steel welded pipes, factors such as specifications, materials, welding quality, surface quality, production standards and certifications, supplier reputation and service should be comprehensively considered to ensure that the selected products meet actual needs and have reliable quality.
