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US 8,387,228 B2Granted
Clad alloy substrates and method for making same
AssigneeATI Properties, Inc.
InventorsDavid S. Bergstrom, Kris J. Schott, Mark A. Tarhay
Life of this patent
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AssigneeATI Properties, Inc.
InventorsDavid S. Bergstrom, Kris J. Schott, Mark A. Tarhay
Estimating the term…
A method for producing a single-clad or multiple-clad product includes providing a welded assembly comprising a cladding material disposed on a substrate material. Both the substrate material and the cladding material are individually selected alloys. At least a first edge of the cladding material of the welded assembly does not extend to a first edge of the substrate material and thereby provides a margin between the first edges. A material that is an alloy having hot strength greater than the cladding material is within the margin and adjacent the first edge of the cladding material. The welded assembly is hot rolled to provide a hot rolled band, and the material within the margin inhibits the cladding material from spreading beyond the edge of the substrate material during the hot rolling. In certain embodiments of the methods, the substrate material is stainless steel and the cladding material is nickel or a nickel alloy.
A method for producing a clad stainless steel, the method comprising hot rolling a welded assembly to provide a hot rolled band, the welded assembly comprising a stainless steel plate welded to an alloy cladding material plate, the cladding material plate being disposed in a recess on a surface of the stainless steel plate such that a projecting portion of the stainless steel plate defines the recess and surrounds and is directly against the entire peripheral edge of the cladding material plate and defines a seam between the entire peripheral edge of the cladding material plate and the projecting portion of the stainless steel plate, wherein the welded assembly is welded together completely around the seam, wherein in the welded assembly a surface of the cladding material plate is substantially coplanar with a surface of the projecting portion of the stainless steel plate, the projecting portion of the stainless steel plate inhibits the alloy cladding material from spreading beyond an edge of the stainless steel during the hot rolling, and at the hot rolling temperature the hot strength of the alloy cladding material is less than the hot strength of the stainless steel.
A method of making a dual clad stainless steel strip, the method comprising:
Dependencies are inferred from the claim text.