Avesta 308H description: AVESTA 308H is designed for welding austenitic stainless steel type 18 Cr 10 Ni or similar. The consumable has an enhanced carbon content when compared to 308L. This provides improved creep resistance properties, which is advantageous at temperatures above 400°C. 308H type consumables are normally used at temperatures up to 600°C. For higher temperatures a niobium stabilised consumable such as AVESTA 347/MVNb is required.