Patent ID: 7290320

Claim:
A method of making a steel wire oven rack designed to be coated with porcelain, comprising the steps of: a) providing a carbon-containing steel rod material containing from about 80 to about 99.9% by weight of iron, up to about 0.08% by weight of carbon and from about 0.001 to about 0.2% by weight of carbon stabilizing transition metal selected from the group consisting of Vanadium, Tantalum, Titanium and Niobium; b) drawing the steel rod material to form steel wire, wherein the diameter of the cross-sectional area of the steel rod material is reduced by at least about 20%; c) forming a plurality of elongated steel wire members from said steel wire; and d) joining the plurality of steel wire members to one another to form interconnected parts of a steel wire oven rack, wherein the amount of carbon in the steel road material, the amount of carbon stabilizing transition metal in the steel rod material and the degree to which the diameter of the cross-sectional area of the steel rod material is reduced, when the steel wire is drawn from the steel rod material, are selected to prevent chipping of the later-applied glass material away from the outer surface of the article due to the release of hydrogen gas from the steel wire members when the steel wire members are heated to a temperature above 900°F.