Stainless Steel 446 Pipe hot working has to be performed at the range between 1093-1177 °C. And the last 10% of hot working should be performed below 871 °C to gain grain refinement. ASTM A268 Tp446 forging can be started at 1149°C and completed at 871°C. In order to gain grain refinement and room temperature embrittlement the last 10% of forging has to be performed below 871°C. Due to the high level of chromium content it is difficult to cold work as compared to other stainless steel.
Stainless Steel 446 pipe can be easily welded by using most of the traditional methods except oxyacetylene welding. It is a ferritic non heat treatable stainless steel that provides good resistance to high temperature oxidation and corrosion.
Category
Country
