Welding of age hardenable stainless steel

Abstract From the Canadian patent

A covered electrode for producing sound age-, hardenable weld deposits by arc welding comprises a maraging steel composition containing up to 0.05% carbon 6.5 to 8% nickel, 9.5 to 11.5% chromium 0.5 to 0.9%, silicon, up to 1% molybdenum up to 0.1% manganese, up, to 0.1% aluminum up to 0.1% titanium, up to 0.01% sulfur up to 0.015% phosphorus and balance iron and a covering or coating comprising the baked residue from a flux mixture consisting essentially of 21 to 35% calcium carbonate 20 to 26% cryolite, 21 to 35% titania, 3.5 to 7.7% chromium as ferrochromium, 2 1/2 to 5% manganese from the group ferromanganese and manganese carbonate and mixtures thereof and a silicate binder.