Haynes Hastelloy G-30 description: HASTELLOY G-30 coated electrodes are used for the shielded metal arc welding of G-30 alloy. The
deposited weld metal has superior corrosion resistance over most other nickel and iron-base alloys in commercial phosphoric acids as well as many complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofl uoric, and sulfuric acids. The electrodes can also be used for the overlay and cladding of carbon steels where enhanced corrosion resistance is needed.