I am in a situation of confirming which electrode to use to weld a casting of (Unstabilized Austentic Stainless Steel) A-743 CF10SMnN. The ASTM specs state the cheamical composition as C=.10, Mag=7.00-9.00, Sil=3.5-4.5, Phos=.060, Sulfur=.030, Chromium=16.-18., Nickel=8.0-9.0, Nitrogen=.08-.18.
I am wondering about preheat, electrode and any special practices needed for this material.
Mark