Detailed explanation of stainless steel pipe size specifications and models

I. Classification of Stainless Steel Pipe Dimensions and Specifications 

The size specifications of stainless steel pipes are divided into multiple types according to the different outer diameters and wall thicknesses. The common size specifications of stainless steel pipes are as follows: 

The seamless stainless steel pipe has an outer diameter ranging from 6mm to 610mm and a wall thickness ranging from 0.5mm to 50mm. 

2. Welded stainless steel pipes with an outer diameter ranging from 10mm to 1200mm and a wall thickness ranging from 1mm to 200mm. 

3. Precision stainless steel tubes with an outer diameter ranging from 6mm to 1020mm and a wall thickness ranging from 0.5mm to 30mm. 

4. Large-diameter stainless steel pipes with an outer diameter ranging from 6mm to 2500mm and a wall thickness ranging from 1mm to 120mm. 

II. Different Models of Stainless Steel Pipes: Usage Scenarios and Characteristics 

Seamless stainless steel pipe 

The seamless stainless steel pipe has a smooth surface, uniform internal structure, high strength and excellent corrosion resistance. It is mainly used in high-temperature and high-pressure pipelines, chemical industries, petroleum, aviation, nuclear power and other fields. 

2. Welding stainless steel pipes 

Welded stainless steel pipes have strong tensile strength and resistance to atmospheric erosion, and are suitable for applications in fields such as chemical engineering, petroleum, shipbuilding, and pharmaceuticals. Compared with seamless stainless steel pipes, they are more cost-effective. 

3. Precision stainless steel tube 

The outer diameter of the precision stainless steel tube is of high accuracy, with a smooth surface. There is no oxide layer inside. It can withstand high temperatures and pressures and is suitable for use in fields such as instrumentation, automotive manufacturing, and aerospace manufacturing. 

4. Large-diameter stainless steel pipe 

Large-diameter stainless steel pipes are used for transporting large volumes of media, such as in engineering fields like offshore platforms, submarine oil and gas pipelines, and highway bridges. 

III. Requirements for the Length of Stainless Steel Pipes 

The length of the stainless steel pipe is generally customized according to the user's requirements. Common lengths of stainless steel pipes include 6 meters, 9 meters, 12 meters, etc. Besides, it can also be customized according to the user's requirements. 

Overall, there are numerous types and specifications of stainless steel pipes available. Choosing the right model is extremely important. Different pipe materials, specifications, and uses vary greatly, and the selection should be based on the actual situation.