Alloy, overlay, and methods thereof
AssigneeAzz Wsi LLC
InventorsGeorge Y. Lai, Bingtao Li
Life of this patent
Estimating the term…
Abstract
An alloy comprising about 0.5 weight percent to about 2 weight percent carbon, about 15 weight percent to about 30 weight percent chromium, about 4 weight percent to about 12 weight percent nickel, up to about 3 weight percent manganese, up to about 2.5 weight percent silicon, up to about 1 weight percent zirconium, up to about 3 weight percent molybdenum, up to about 3 weight percent tungsten, up to about 0.5 weight percent boron, up to about 0.5 weight percent impurities, and iron.
Claims8
A hardfacing welding alloy that can be applied by welding to form an overlay over an upper surface of a steel substrate for protection against cracking, high-temperature corrosion and erosive wear, the hardfacing welding alloy comprising about 0.5 weight percent to about 2 weight percent carbon, about 15 weight percent to about 30 weight percent chromium, about 4 weight percent to about 12 weight percent nickel, about 0.5 to about 2.0 weight percent manganese, up to about 2.5 weight percent silicon, up to about 1 weight percent zirconium, up to about 3 weight percent molybdenum, up to about 3 weight percent tungsten, up to about 0.5 weight percent boron, and balance being iron along with about 0.5 weight percent impurities, and wherein the ratio of chromium to nickel is in a range of about 2 to about 3.
Dependencies are inferred from the claim text.