1.4501 is a stainless steel containing 20.5 percent chromium, 24 percent nickel, 6.5 percent molybdenum, and 0.22 percent nitrogen. It has excellent corrosion resistance and high corrosion resistance in corrosive media such as strong acids, alkalis, and chlorides. Commonly used in the manufacturing of chemical equipment, marine equipment, food processing equipment, etc.
The reason for intergranular corrosion is that during the welding process, the weld area was subjected to high-temperature heat treatment, resulting in the depletion of chromium elements at the 1.4501 grain boundary, forming a low chromium area, making the grain boundary more prone to corrosion. 1.4501 is a corrosion-resistant and aesthetically pleasing alloy material composed of elements such as iron, chromium, and nickel.
The chemical composition of 1.4501 is:
chromium (Cr): 16.0 percent -18.0 percent , Molybdenum (Mo): 0.75 percent , Carbon (C): 0.95 percent -1.20 percent , Silicon (Si): Less than or equal to 1.0 percent , Manganese (Mn): Less than or equal to 1.0 percent ,
Phosphorus (P): Less than or equal to {{0}}.04 percent , Sulfur (S): Less than or equal to 0.03 percent .
Through advanced material calculation and simulation technology, the impact of different elements on the structure and performance of 1.4501 can be more accurately predicted, providing more accurate guidance for material design;
Chemical corrosion refers to the direct damage caused by the corrosive medium to 1.4501, while electrochemical corrosion refers to the formation of a battery between 1.4501 and the electrolyte in the corrosive medium, where the current passes through the ions in the medium and metal atoms are transferred, ultimately leading to metal corrosion. 1.4501, as a widely used material in industrial and civil fields, its corrosion performance is crucial for its service life and safety.
In summary, surface active elements refer to some elements added in 1.4501, such as sulfur, potassium, sodium, and carbon. They can also promote the formation of oxide films, thereby improving the corrosion resistance of 1.4501.
