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What are the performance of poor quality stainless steel pipe?

DataTime:[11/3/2018]
The seamless stainless steel pipe is a long steel bar with a hollow section and seamless joints. The thicker the wall thickness of a stainless steel pipe is, the higher its economical efficiency and practicality, and the thinner the wall thickness, the greater the production and processing costs.
The process of the seamless stainless steel tube determines its limited performance. Usually, the accuracy of the seamless stainless steel tube is low, there are uneven wall thickness, low brightness inside and outside the tube, high cut-in cost, and pits and black spots on the inside and outside surfaces are not easily removed. Disadvantages, seamless stainless steel tube inspection and shaping must also be handled offline. However, seamless stainless steel tubes also exhibit their advantages in terms of high-pressure, high-strength, mechanical structural materials. However, there are many problems with poor quality stainless steel seamless tubes, and some may even cause serious problems in practical applications. Here is a list of the common phenomena of inferior seamless stainless steel tubes for reference.
One is that the surface of the inferior seamless stainless steel tube is likely to form scars. That is because of the non-uniformity of the material of the material and the fact that it contains more impurities. The equipment made is very simple and easy to stick to steel. High-quality stainless steel seamless pipes do not have such problems and phenomena.
The second reason is that the surface of the inferior seamless stainless steel pipe is very easy to form cracks because the billet is adobe, and the billets have many holes, and the adobe will be cracked quickly due to thermal stress during the cooling process. There will be cracks afterwards.
The third is that the inferior seamless stainless steel pipe has an elliptical cross-section. The reason is that in order to save the material cost, the amount of reduction in the front roller of the finished roller is too large, and the strength of the stainless steel pipe will be greatly reduced, and Nor will it meet the pipe's dimensions.
The fourth reason is that the inner diameter of inferior seamless stainless steel pipe fluctuates greatly because the temperature of the stainless steel plate is unstable and there is a yin and yang face, and the composition of the steel is also uneven, because the equipment is simple, the foundation strength is low, and the mill bouncing is large. . There will be a larger change in the inner diameter in the same week, so that the stainless steel tube is also very easy to form fractures due to uneven force. The longitudinal bars of stainless steel seamless pipes for counterfeit structures are often wavy.
Source: China Seamless Stainless Steel Pipe Manufacturer - Yaang Pipe Industry Co., Limited (www.yaang.com)

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