Avesta FCW-2D 308H description: AVESTA FCW-2D 308H is designed for welding austenitic stainless steel type 18 Cr 10 Ni or similar. Its higher carbon content compared to 308L provides improved creep resistance properties, which is advantageous at temperatures above 400°C. 308H is also suitable for welding titanium and niobium stabilised steels such as ASTM 321 and ASTM 347 for service temperatures not exceeding 600°C.