Seamless steel pipes are made of a whole round steel perforated and have no welds on the surface. According to different production methods, they can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, and extruded seamless steel pipes. Seamless steel pipe, etc.
Characteristics of seamless steel pipes
First, the thicker the wall thickness of smls pipes, the more economical and practical it is. The thinner the wall thickness, the processing cost will increase significantly.
Secondly, the process of the product determines its limited performance, and the general precision of seamless steel pipes is low. The wall thickness is not uniform, the external brightness of the tube is low, the measurement cost is high, and the internal surface has pitting and black spots are not easy to remove
Third, its detection and shaping must be processed offline. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure materials
Wall thickness of seamless steel pipe
The Crefers to the thickness of the pipe wall, and its standard size is specified in accordance with the ISO 3160 standard. According to this standard, the wall thickness of seamless pipes is usually divided into the following series: 1. 1/8 inch (3.18 mm) ~ 1/2 inch (12.7 mm), which is the thinner seamless pipe wall thickness range. 2. 1/2 inch (12.7 mm) to 3 inches (76.2 mm), which is the more common wall thickness range of seamless pipes
Advantages and of disadvantages thick wall seamless steel pipe
Advantages
1. High strength: thick-walled seamless steel pipes are stronger than ordinary steel pipes and can withstand higher pressure and bending forces
2. Corrosion resistance: Smooth surface, not easy to adhere to impurities, good corrosion resistance, adaptable to various complex environments
3. Good thermal conductivity: can effectively transfer heat and is suitable for heat exchanger manufacturing
4. High aesthetics: smooth, flat surface, uniform color, suitable for decoration projects
Disadvantages
1.Higher price: Compared with ordinary steel pipes, the manufacturing cost is higher
2.Vulnerable: Thin wall thickness makes it susceptible to impacts and scratches
Advantages and disadvantages of thin walled seamless steel pipes
Advantages:
1. Good economy: low processing costs.
2. Uniform wall thickness: suitable for general use
Disadvantages:
1. Lower pressure-bearing capacity: compared with thick-walled seamless steel pipes, the pressure-bearing capacity is smaller.
2. Lower surface brightness: The surface brightness of the inner and outer surfaces is not as high as that of thick-walled seamless steel pipes
3. The cost of fixed length is high.
4. The pits and black spots on the internal and external surfaces are difficult to remove
Read more: Measures to Improve the Wall Thickness Accuracy of Seamless Steel Pipes
