BÖHLER AWS A5.9 / SFA-5.9 ER309LSiSolid wire G 23 12 L Si / ER309LSi for joining of unalloyed and low-alloyed steels and cast steel grades or stainless heat resistant Cr-steels to austenitic steels. Well-suited for depositing intermediate layers when welding cladded materials. Favourably high Cr and Ni contents, low C content. Application temperature max. 300ºC.