TheweldmetalofE309/309Lcontainsmore Cr Ni thanE 308/308L. It contains suitable quantity ferrite in microstructure, gives it an excellent resistance to hot cracking. it is designed for dissimilar meta welding ofjoining mild steel to stainless steel, hardening alloy steel and steel with poor weldability. Prop base metals are including stainless steel plate, steel strip, steel tube, heat transfer tube, pressure vess steel bar, casting and forging.