Crs Holdings, Inc.

USA as Represented by Secretary of the Navy

Carpenter Technology Corporation

Paul M Novotny

Raymond M Hemphill

David E Wert

Michael L Schmidt

Richard Harvey Smith

Matthew Sinfield

Shane Para

James E Heilmann

Patrick C Ray

Dan DeAntonio

Jeffrey Farren

William J Martin

Joe Stravinskas

Richard Wong

Thomas J McCaffrey

A steel alloy having very high strength in combination with good ductility, impact toughness, and fracture toughness is disclosed. The alloy has the following weight percent composition. The balance is iron and usual impurities.

Ultra-high strength alloy

A high strength, high toughness steel alloy is disclosed. The alloy has the following broad weight percent composition. Included in the balance are the usual impurities found in commercial grades of steel alloys produced for similar use and properties. Also disclosed is a hardened and tempered article that has very high strength and fracture toughness. The article is formed from the alloy having the broad weight percent composition set forth above. The alloy article according to this aspect of the invention is further characterized by being tempered at a temperature of about 500&#xb0; F. to 600&#xb0; F.

High strength, high toughness steel alloy

An exemplary welding consumable according to the invention is provided and includes up to about 0.13 wt % carbon, about 0.3 wt % to about 1.4 wt % manganese, about 7.25 wt % to about 11.5 wt % nickel, about 0.6 wt % to about 1.2 wt % molybdenum, about 0.2 wt % to about 0.7 wt % silicon, up to about 0.3 wt % vanadium, up to about 0.05 wt % titanium, up to about 0.08 wt % zirconium, up to about 2.0 wt % chromium, and a balance of iron and incidental impurities.

High strength welding consumable based on a 10% nickel steel metallurgical system

A steel alloy is disclosed that provides a unique combination of strength, toughness, and fatigue life. The steel alloy has the following composition in weight percent: The balance of the alloy is iron, usual impurities, and residual amounts of other elements added during melting for deoxidizing and/or desulfurizing the alloy. A hardened and tempered steel article made from the alloy is also disclosed.

Alloy for mud motor shaft applications with high strength, high impact toughness and excellent fatigue life

A high strength, high toughness steel alloy is disclosed. The alloy has the following weight percent composition. The alloy further includes a grain refining element selected from the group consisting of 0.0001-0.01% Mg, 0.001-0.025% Y, and a combination thereof. The balance of the alloy is iron and the usual impurities found in commercial grades of steel alloys produced for similar use and properties. In this regard phosphorus is limited to not more than about 0.01% and sulfur is limited to not more than about 0.001%. Also disclosed is a hardened and tempered article that has very high strength and fracture toughness. The article is formed from the alloy having the weight percent composition set forth above. The alloy article according to this aspect of the invention is further characterized by being tempered at a temperature of about 500&#xb0; F. to 600&#xb0; F.

A high strength, high toughness steel alloy is disclosed. The alloy has the following weight percent composition. Included in the balance are the usual impurities found in commercial grades of steel alloys produced for similar use and properties including not more than about 0.01% phosphorus and not more than about 0.001% sulfur. Also disclosed is a hardened and tempered article that has very high strength and fracture toughness. The article is formed from the alloy having the broad weight percent composition set forth above. The alloy article according to this aspect of the invention is further characterized by being tempered at a temperature of about 500&#xb0; F. to 600&#xb0; F.

An age hardenable martensitic steel alloy having a unique combination of very high strength and good toughness consists essentially of, in weight percent, about

Age hardenable alloy with a unique combination of very high strength and

A martensitic steel alloy has a unique combination of hardness and corrosion resistance. Broadly stated, the alloy contains, in weight percent, about

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Mohnton, PA, United States of America

Paul M Novotny