Attention to the brittleness of Cr serious material during welding For products made of Cr serious material, attention to brittleness is needed during welding at temperature around 700℃. Austenitic welding rod can be used, such as 0021Cr21, Ni10. We also need pay attention to the successive treatment after welding, that is: Clean it with a piece of white cloth. Especially for the TIG welding of JYH21CT. To ensure its good mechanical properties and corrosion resistance, please note: 1、welding thread：To prevent the increase of carbon content during welding, please use 308L or 309L welding thread. 2、carbon stain prevention：Grease on the steel surface may cause carbon infiltration, thus it must be well cleaned before welding. 3、gas protection：To prevent oxidation and Nitrogen infiltration on the steel surface, argon is used to protect the steel surface. 4、moderate heating ：If heating temperature is too high during heating, it may cause crystal particles become bigger, which will affect the steel toughness. Please do not overheat. |
