316L stainless steel polished welded pipe
316L stainless steel polished welded pipe is referred to as welded pipe,commonly used steel or steel strip is welded by the unit and the die is formed by welding. The welded steel pipe has simple production process, high production efficiency, many varieties and specifications, and less equipment, but the general strength is lower than that of seamless steel pipe. Since the 1930s, with the rapid development of high-quality strip continuous rolling production and the advancement of welding and inspection technology, the quality of welded joints has been continuously improved, and the variety specifications of welded steel pipes are increasing, and in more and more fields, especially in In the heat exchange, the spare pipe, the decorative pipe, the medium and low pressure fluid pipe and the like replace the seamless steel pipe.
Comparison of stainless steel pickled welded pipe and polished welded pipe:
1. The wall thickness of the welded pipe with weld seam is uniform and has a strong bearing pressure. Polished welded pipes are manually polished to reduce the thickness of the raw material, especially at the weld. The thinner the wall thickness of the weld, the smaller the pressure bearing capacity.
2. With welded seam pickled welded pipe to ensure the performance of austenitic stainless steel. Most stainless steel welded pipes are made of austenitic stainless steel,and the austenitic type is non-magnetic or weakly magnetic. The polished welded pipe is polished to cause chemical fluctuations, so that the austenitic stainless steel contains magnetism.
3, with welded seam pickled welded pipe with strong corrosion resistance. The polished welded pipe throws away the passivation layer formed by pickling of the raw material, so that the polished welded pipe is apt to rust in a normal environment, and the corrosion resistance is weakened.
4. The quality of the welded pipe with weld seam is more stable. Polished welded pipes are products that have been promoted from Wenzhou. Since the raw materials used in stainless steel welded pipes in Wenzhou are mostly secondary materials or even recycled materials, in order to cover the surface of the secondary materials, the water splash, heavy leather and depressions (also known as corrosion points) must be polished; more importantly, in order to reduce the material Cost, waste board reuse, splicing multiple longitudinal and transverse welds on one welded pipe. The quality of such polished pipe raw materials cannot be guaranteed, and the quality of the welded pipe itself cannot be guaranteed.
5, with welded seam pickled welded pipe is more practical. Industrial welded pipes mainly use the mechanical properties, corrosion performance or channel performance of the welded pipe itself, and the gloss requirements on the surface of the welded pipe are relatively low, except for decorative welded pipes and sanitary welded pipes. Therefore, it is not necessary to use a polished pipe with high cost and unstable performance for industrial welded pipes.
Jawaysteel Corporation,stainless steel supplier from China,founded in 1998, is a professional manufacturer and global exporter specializing in metal manufacture and exportation. In recent years, winged by rapid merge and expansion,Our well-equipped plant emerged in Dainan, Jiangsu Province, with two Export offices respectively located in Shanghai and HongKong catering.Export offices respectively located in Shanghai and HongKong catering to a lager scale of customers from both home and abroad under the banner of supreme service.
If you have confirm requirement on 316L stainless steel polished welded pipe,please contact us,we can give you an exact quote.Email:802@jawaysteel.com
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