409 Stainless Steel Coil                                                                               The proper hot work range is 2000 to 2200 DegreeF (1093 to 1204 DegreeC): Do not work this material below 1650oF (899 DegreeC) Readily welded by all standard methods To reduce the risk of cracking, it is suggested to pre-heat the work piece to 350 to 400 DegreeF (177 to 204 DegreeC) Post weld annealing is recommended to retain maximum ductility