welding sa-203 type e
 

welding sa-203 type e
i would like to know the best recommended filler metal, interpass temperature, and availability of the recommended filler metal. i have read that er80s-ni3 is recommended but am not sure its availabilty. i have also read filler metals from ernicrmo-3, 4, er309l, er310 are also recommended. my service is to -100f to 350f. please help!