Will sea water affect the performance of 316L stainless steel welded pipes

stainless steel welded pipe has super corrosion resistance, especially 316l stainless steel pipe, so it is widely used in the seaside and other corrosive environments. however, even the best stainless steel welded pipe can cause corrosion if used improperly, so it is mainly what are the influences?

sea waters in different regions are affected by tides, and the chloride content is different. even in slightly salty water, the chloride content is higher than that in water where crack corrosion poses a threat of corrosion. changes in tides may cause some 316l stainless steel pipe to be regularly exposed to the air or immersed in seawater. although the corrosion probability is lower than that of seawater with high salt content, if the area is where chlorides are concentrated, in rainy areas, long-term scouring by tide water will reduce the corrosion resistance of stainless steel welded pipes.

the flow rate of seawater is also a key factor that affects the corrosion ability of stainless steel welded pipes. in the slower flow rate of seawater, biological pollution may be heavier. seriously polluted waters will also accelerate the corrosion of stainless steel cracks, so avoid laying 316l stainless steel pipe on stagnant sea water environment. in other words, increasing the flow rate will reduce the risk of corrosion, but the technology and cost required to increase the flow rate in a seawater environment are very high, and this is not worth the loss.

the water quality and flow rate of seawater will affect the corrosion resistance of 316l stainless steel pipe. in addition, related research on the influence of water temperature, oxygen content and other factors on the performance of stainless steel welded pipes is ongoing. i believe that people will understand this aspect soon. it will go deeper.