TECHALLOY Nickel 211 is a nickel-manganese alloy with good elevated-temperature resistance to corrosion by sulfur compounds. When annealed, it is slightly stronger and harder than Techalloy Nickel 200 and is good for structural parts subjected to degassing temperatures. Nickel 211 has low electron emission and is used for such applications as electron tubes and sparkplug electrodes. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-248. Producer or source: Techalloy Company Inc..