304 316 Seamless stainless steel pipe process determines its limitations can, usually 304(L)316(L )seamless stainless steel pipe accuracy is low, there is uneven wall thickness, low brightness in the SS304 316 tube, high fixed scale cost, and the appearance of hemp points, black spots are not easy to remove and other shortcomings, seamless stainless steel pipe inspection and shaping must also be offline treatment. However, the high pressure of 310S seamless stainless steel pipe, high strength, mechanical structure materials also fully reflect its superiority. However, there are many problems with shoddy 304 316 stainless steel seamless tubes, and some will even have a serious impact on practical applications. Below to enumerate the inferior quality of seamless stainless steel pipe common phenomenon, for material selection reference. One is the poor quality of seamless stainless steel pipe surface easy to form scarring. That's because the material is uneven in material and contains more impurities. The equipment made is very rudimentary and easy to stick to steel. and high-quality 304 316 stainless steel seamless pipe But there is no such problem and phenomenon.
The second is the poor quality of 304 316 seamless stainless steel pipe surface is very easy to form cracks, because its billet is billet, and the billet pores, billet in the cooling process because of the role of thermal stress, will quickly produce cracks, after rolling there will be cracks.
The Third, the quality of the 304 316 seamless stainless steel pipe cross section for the oval, the reason is that manufacturers in order to save material costs, the finished roller in front of the ER DAO pressure is large, the strength of this 304 316 stainless steel pipe will be greatly reduced, and will not meet the standard of pipe shape and size.
The forth , It is poor quality 304 316 seamless stainless steel pipe internal diameter size fluctuation is large, is due to the temperature instability of stainless steel plate will have yin and yang noodles, and the composition of steel is not uniform, because the equipment is simple, the foundation strength is low, the rolling mill bounce is large. There will be a large internal diameter change in the same week, such a stainless steel pipe force is not uniform and very easy to form a fracture. The longitudinal bars of stainless steel seamless steels for shoddy structures are often wavy.