The national standard thickness of stainless steel pipes is generally 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, etc. The specific thickness needs to be selected according to the purpose and demand. In addition, there are other standards for the wall thickness of stainless steel pipes, such as the wall thickness range of 0.25mpa to 10.0mpa specified in GBT 19228.2-2011.
1. National standard thickness and tolerance of stainless steel pipes
The national standard thickness of stainless steel pipes has a series of standard values, such as 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm and 3.0mm. These thickness values are selected according to different uses and needs to ensure the performance and safety of stainless steel pipes during use.
At the same time, the national standard also stipulates the tolerance range of stainless steel pipe thickness. For thick-walled pipes, when the outer diameter of the pipe is less than or equal to 159mm, the tolerance is ±12.5%; when the outer diameter is greater than 159mm, the tolerance is ±10%. For thin-walled pipes, when the outer diameter is less than or equal to 159mm, the tolerance is ±0.20mm; when the outer diameter is greater than 159mm, the tolerance is ±0.25mm. These tolerance regulations help ensure the production and processing quality of stainless steel pipes.
2. Other standards for stainless steel pipe wall thickness
In addition to the national standard thickness, there are other standards for the wall thickness of stainless steel pipes. For example, according to GBT 19228.2-2011 standard, stainless steel water pipes with a nominal diameter of less than 100 and a wall thickness of less than 2 mm are collectively referred to as thin-walled stainless steel water pipes. The wall thickness range specified in this standard ranges from 0.25mpa to 10.0mpa, covering a variety of different application requirements.
3. Indication of stainless steel pipe wall thickness
The thickness of stainless steel pipes is usually indicated by symbols such as pipe wall thickness (WT), standard type of pipe wall thickness (SCH), and pipe outer diameter (OD). For example, a stainless steel pipe is marked as WT 2mm, SCH10, OD 25mm, which means that the wall thickness of the stainless steel pipe is 2mm, the SCH10 standard is adopted, and the outer diameter is 25mm. This method of indication helps users to accurately understand and select suitable stainless steel pipe products.
4. Application and selection of stainless steel pipes
As a high-quality pipeline material, stainless steel pipes are widely used in industry, construction, decoration and other fields. When selecting stainless steel pipes, in addition to considering their thickness standards, a comprehensive evaluation should be conducted based on factors such as specific use, working environment and cost budget. For example, the thickness of stainless steel pipes commonly used in home improvement and municipal construction projects is generally 0.5mm to 1.2mm; while industries such as chemical and petroleum may need to choose thicker stainless steel pipes to ensure safety and durability.
