Corrosion and Heat-Resistant Valve Castings

CF3M, as a low-carbon austenitic stainless steel (equivalent to 316L), its outstanding performance stems from scientific composition design. 18% chromium is the foundation of corrosion resistance, which can quickly form a dense Cr₂O₃ oxide film on the material surface, effectively resisting the erosion of various corrosive media. 8% nickel element builds a stable austenite lattice, endowing the material with excellent low-temperature toughness. Even in an extremely cold environment of -196 ℃, it can still maintain good mechanical properties and avoid brittle fracture. 2.5% molybdenum significantly enhances the resistance to pitting and crevice corrosion. Especially in environments containing chloride ions, it can reduce the corrosion rate to less than one fifth of that of ordinary stainless steel. ​ One of its key advantages is the "low-carbon" feature, with a carbon content of ≤0.03%, which can effectively prevent the precipitation of carbides at the grain boundaries during the weldi…