Stoody Company

Other

Stoody Deloro Stellite, Inc.

Ravi Menon

Jack Garry Wallin

Daya Singh

Francis Louis LeClaire

James B Wu

Tim Barnhart

Francis Lewis LeClaire

William C Mosier

Compositions for Chromium-free hardfacing welding consumables are provided that include between approximately 0.3% and approximately 1.5% Carbon, between approximately 0.2% and approximately 2.5% Manganese, between approximately 0.3% and approximately 1.3% Silicon, between approximately 1.3% and approximately 5.5% Boron, between approximately 1.0% and approximately 4.0% Nickel, between approximately 1.0% and approximately 6.0% of at least one of Titanium and Niobium, and between approximately 0.1% and approximately 2.0% Tungsten and/or Molybdenum. Additional welding consumable compositions and weld deposit compositions are also provided to provide hardfacing materials with little or no Chromium content.

Chromium-free hardfacing welding consumable

A weld deposit produced from a coated welding electrode for use in welding cast irons is provided by the present invention. Preferably, in one form of the present invention, the weld deposit composition comprises between approximately 54% and approximately 60% Nickel, between approximately 3.5% and approximately 5.5% Manganese, and between approximately 0.9% and approximately 1.4% Carbon. The weld deposit is preferably formed by using a coated welding electrode having a coating composition between approximately 0.3% and approximately 4.0% Magnesium and rare earth metals and oxides. The resulting weld deposit exhibits improved ductility, fracture toughness, and resistance to cracking.

Welding compositions for improved mechanical properties in the welding of cast iron

Chromium free hardfacing welding consumable

Weld deposit compositions with improved abrasion and corrosion resistance are provided by balancing percent weights of Chromium (Cr), Titanium (Ti), Niobium (Nb), and Boron (B) to allow the Chromium content of the weld matrix to be minimally reduced during carbide formation. The result is an enriched Chromium matrix that has excellent corrosion resistance in combination with highly abrasion resistant dispersed carbides.

Abrasion and corrosion resistant alloy and hardfacing/cladding applications

Weld deposit compositions with improved crack resistance, improved wear resistance, and improved hardness are provided by controlling matrix grain size and balancing Titanium and/or Niobium with Carbon and/or Boron content. Additionally, the presence of coarse chromium carbides is drastically decreased to reduce the amount of check-cracking. Preferably, the weld deposit is produced from a flux-cored or metal-cored wire. The weld deposit characteristics include a matrix having a fine grain size, small evenly dispersed carbides within the matrix, and a small amount of Carbon in the matrix.

Hard-facing alloys having improved crack resistance

Compositions for stainless steel weld overlays having enhanced wear resistance are provided by incorporating second phase Titanium Carbide (TiC) and/or Niobium Carbide (NbC) into matrices of various types of stainless steel such as 316L and 420. Preferably, TiC and NbC precipitates are formed in-situ during the weld overlay process while minimizing the amount of Carbon (C) going into solid solution in the matrix of the weld overlay.

Stainless steel weld overlays with enhanced wear resistance

An overlayer for a use on industrial components such as steel mill caster rolls which require enhanced abrasion, corrosion, and gall resistance. The overlayer has relatively lower carbon levels and relatively higher molybdenum levels relative to other alloys used as overlayers, The overlayer has reduced susceptibility to sensitization and enhanced corrosion resistance.

Abrasion, corrosion, and gall resistant overlay alloys

A method for depositing corrosion and wear resistant high alloy overlayers on industrial component substrates. Dilution of alloying components from out of the overlayer into the substrate is minimized by use of electroslag surfacing onto horizontally positioned surfaces of the substrate using oscillating wire.

Electroslag surfacing using wire electrodes

A low alloy steel for use in building up industrial components subjected to service conditions requiring good impact toughness, resistance to tempering, and resistance to temper embrittlement, for example, for use as a build up layer for steel mill caster rolls and a submerged arc welding wire for deposition thereof. The composition of low alloy steel has less than about 0.1% C by weight, between about 1.5% and about 5.0% Ni by weight, and between about 0.5% and about 3.0% Mo by weight. Vanadium, Cr, and other carbide-formers are excluded from the low alloy steel sufficiently to avoid any significant precipitation of carbides upon deposition of the low alloy steel by welding onto an industrial component.

Low alloy build up material

A cavitation erosion resistant alloy comprising about 10 to 40 percent by weight of one or more carbide formers including some chromium, 5 to 15 percent by weight cobalt, 5 to 15 percent by weight manganese, 3.5 to 7.0 percent by weight silicon, 1.8 to 4.8 percent by weight nickel, 0.15 to 3.5 percent by weight carbon plus boron, up to 0.3 percent weight nitrogen and the balance being iron plus impurities.

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Goodlettsville, TN, United States of America

Ravi Menon