Marine grade Hot selling 316 600G stainless steel tube/pipeMAY.25,2022
Why Winsco Stainless steel pipe tube hot sale in Europe?MAY.14,2022
Winsco Metal Help To Find Stainless Steel Square Tubing For ClientsAPR.29,2022
Winsco Metal Offer High Quality Stainless Steel PipesAPR.29,2022
GuangDongWinsco Offer High-End Quality Stainless Steel PipeAPR.29,2022
Why choose Winsco SUS304 Stainless steel tube pipe?APR.27,2022
Why Winsco Stainless steel pipe hot sale in Saudi Arabia?APR.22,2022
Why Winsco Stainless steel tube hot sale in Peru?APR.22,2022
Where to purchase stainless steel pipe？APR.22,2022
Are you looking for stainless steel pipes Suppliers？APR.21,2022
Due to the existence of gaps in the structure of the equipment and components or the presence of metal or non-metallic deposits on the surface of the stainless steel pipe, a gap is formed between the deposit and the surface of the stainless steel pipe. Under the action of corrosive media, dots and pets will be preferentially formed in the gap. Damage, this is crevice corrosion. In an aqueous medium containing Cl-, the partial destruction of the passivation film caused by the acidification of the medium solution in the gap and lack of oxygen.
The most fundamental thing to eliminate gaps is to avoid gaps in the structural design. The gaps between the heat exchange equipment tubes and the tube sheets should be cleaned regularly and in an environment such as sea water to prevent dirt from accumulating on the surface of the stainless steel tube. The selection of high chromium, molybdenum and high molybdenum, nitrogen stainless steel pipes resistant to crevice corrosion is a general idea for the selection of stainless steel pipes that are resistant to pitting corrosion and crevice corrosion. At the same time, it can be seen that in order to solve the crevice corrosion, it is more difficult to start from the selection of materials than to solve the pitting corrosion, and the economic cost will be higher.