Patent ID: 7491910

Claim:
An electrode for forming a hardfacing alloy for application to a metal surface, said electrode including iron, at least 0.05 weight percent by electrode vanadium and over 0.1 weight percent by electrode niobium, said hardfacing alloy comprising of at least about 7 weight percent chromium, at least about 0.02 weight percent nitrogen, metal sensitization inhibitor, and a majority weight percent iron, said hardfacing alloy containing less than about 6% ferrite, said metal sensitization inhibitor in said hardfacing alloy including a metal selected from the group consisting of at least about 0.3% niobium, at least about 0.05% vanadium, and combinations thereof, said electrode including a metal sheath and a fill composition said fill composition comprising by weight percent of said total electrode: Aluminum up to 1% Carbon up to 0.3% Cobalt 0-0.06% Copper 0-0.01% Chromium 1-15% Iron up to 8% Magnesium 0-0.4% Manganese up to 1.5% Molybdenum 0-1% Niobium up to 0.8% Nickel 0-8% Silicon 0-0.9% Tantalum 0-0.05% Titanium 0-0.08% Vanadium 0.05-0.3% Zinc 0-0.004%.