Abstract: A corrosion resistant, martensitic stainless steel alloy is disclosed having the following composition in weight percent.______________________________________ wt. % ______________________________________ Carbon 0.06-0.10 Manganese 0.50 max. Silicon 0.40 max. Phosphorus 0.060 max. Sulfur 0.15-0.55 Chromium 12.00-12.60 Nickel 0.25 max. Molybdenum 0.10 max. Copper 0.50 max. Nitrogen 0.04 max. ______________________________________and the balance is essentially iron. This alloy provides a unique combination of form tool machinability, corrosion resistance, and hardenability, particularly in the annealed condition (100 HRB max.). The alloy is capable of being hardened to at least 35 HRC.

Abstract: A system and method for removing a coating from an elongated metal part or a bundle of such parts is described. The disclosed system includes a soaking vessel that contains a solution suitable for degreasing the metal part and softening the coating thereon. An ultrasonic cleaning vessel containing an aqueous cleaning solution cleans the coating off of the metal part by ultrasonic agitation. The system further includes at least one rinsing vessel for rinsing the cleaning solution of the cleaned part, and a drying vessel for rapidly and thoroughly drying the part after it has been rinsed. In the disclosed process, the elongated metal part, or a bundle of such parts, is/are soaked in a solution that is maintained at an elevated temperature for a time sufficient to soften the coating. The elongated metal part is then subjected to ultrasonic agitation in an aqueous cleaning solution bath at an elevated temperature for a time sufficient to loosen and dislodge the coating from the elongated metal part.

Abstract: An age hardenable martensitic steel alloy having a unique combination of very high strength and good toughness consists essentially of, in weight percent, about______________________________________ C 0.21-0.34 Mn 0.20 max. Si 0.10 max. P 0.008 max. S 0.003 max. Cr 1.5-2.80 Mo 0.90-1.80 Ni 10-13 Co 14.0-22.0 Al 0.1 max. Ti 0.05 max. Ce 0.030 max. La 0.010 max. ______________________________________the balance essentially iron. In addition, cerium and sulfur are balanced so that the ratio Ce/S is at least about 2 and not more than about 15. A small but effective amount of calcium can be present in place of some or all of the cerium and lanthanum.

Abstract: A precipitation hardenable, martensitic stainless steel alloy is disclosed consisting essentially of, in weight percent, about______________________________________ C 0.03 max Mn 1.0 max Si 0.75 max P 0.040 max S 0.020 max Cr 10-13 Ni 10.5-11.6 Ti 1.5-1.8 Mo 0.25-1.5 Cu 0.95 max Al 0.25 max Nb 0.3 max B 0.010 max N 0.030 max Ce 0.001-0.025 ______________________________________the balance essentially iron. The disclosed alloy provides a unique combination of stress-corrosion cracking resistance, strength, and notch toughness even when used to form large cross-section pieces. A method of making such an alloy includes adding cerium during the melting process in a amount sufficient to yield an effective amount of cerium in the alloy product.

Abstract: The present invention relates to an austenitic stainless steel alloy and in particular to a resulfurized austenitic stainless steel alloy, and an article made therefrom, having a unique combination of corrosion resistance, machinability and low magnetic permeability, especially in the cold worked condition.

Abstract: An austenitic, stainless steel alloy is disclosed consisting essentially of, in weight percent, about______________________________________ C 0.035 max Mn 3-10 Si 1.0 max P 0.05 max S 0.15-0.45 Cr 10-20 Ni 4-8 Mo 1.0 max Cu 1.0-3.0 N 0.035 max B 0.005 max Se 0.1 max ______________________________________with the balance essentially iron. The disclosed stainless steel provides superior machinability relative to AISI Type 203 stainless steel with similar corrosion resistance, strength, ductility, hardness, and magnetic permeability.

Abstract: A method for making a corrosion resistant, ferritic steel alloy, with reduced magnetic coercivity is disclosed. The process includes the step of providing an intermediate form of a ferritic alloy consisting essentially of, in weight percent, about______________________________________ Carbon 0.02 max. Manganese 1.5 max. Silicon 3.0 max. Phosphorus 0.03 max. Sulfur 0.1-0.5 Chromium 8-20 Nickel 0.60 max. Molybdenum 1.5 max. Copper 0.3 max. Cobalt 0.10 max. Aluminum 0.01 max. Titanium 0.01 max. Nitrogen 0.02 max. Iron Balance ______________________________________The intermediate form of the alloy is given an annealing heat treatment at a first temperature in the range of about 700.degree.-900.degree. C. for at least about 2 hours. After the penultimate annealing step, the intermediate form is cold worked to reduce its cross-sectional area by about 10-25%, thereby providing an elongated form of said alloy.

Abstract: A magnetically soft, Co--Fe--C alloy is disclosed which contains in weight percent, about______________________________________ Carbon 0.05-0.50 Manganese 0.5 max. Silicon 0.5 max. Phosphorus 0.01 max. Sulfur 0.01 max. Chrominum 1.0 max. Nickel 1.0 max. Molybdenum 0.25 max. Cobalt 14-28 Vanadium 0.1 max. Niobium 0.1 max. Tungsten 0.1 max. ______________________________________and the balance is essentially iron. The alloy provides a yield strength of up to about 580 MPa (84 ksi) while maintaining ductility and magnetic induction comparable to the known 27Co--Fe soft magnetic alloy. Magnetic and mechanical properties are developed through an annealing heat treatment which is performed after the alloy has been mechanically worked and machined to final shape.

Abstract: A process for making a cladding for a nuclear fuel rod is disclosed which includes the following steps. First, at least two layers of zirconium-based metals are spray deposited on a generally cylindrical substrate in a manner that provides a rough, cylindrically-shaped, porous billet. The zirconium-based metal for each layer is different from an adjacent layer and is selected to provide a desired combination of properties. Next, the substrate is removed from the spray deposited material, thereby providing an elongated tube hollow. The spray deposited material is then consolidated in a known manner to remove the porosity, densify the tube hollow to substantially full density, and reduce the cross-sectional dimension of the tube hollow to a desired size.

Abstract: A ferritic stainless steel alloy is disclosed having a unique combination of machinability, cold-formability, weldability, and corrosion resistance. The disclosed alloy has the following weight percent composition.______________________________________ wt. % ______________________________________ Carbon 0.08 max. Manganese 1.00 max. Silicon 1.00 max. Phosphorus 0.045 max. Sulfur 0.030-0.30 Chromium 10.5-11.75 Molybdenum 0.50 max. Copper 0.50 max. Nickel 0.50 max. Aluminum 0.10 max. Columbium 10 .times. C to 0.80 ______________________________________The balance is essentially iron. The novel alloy is particularly suited for components used in automotive fuel and exhaust systems. A number of such components made from the aforesaid alloy are also disclosed.

Abstract: A process for preparing a duplex ferromagnetic alloy article is disclosed. The process includes the step of providing an elongated intermediate form of a ferromagnetic alloy having a substantially fully martensitic structure. The martensitic intermediate form undergoes an aging heat treatment under conditions of temperature and time that are selected to cause controlled precipitation of austenite in the martensitic alloy. The aged article is then cold-worked to a final cross-sectional dimension, preferably in a single reduction step, to provide an anisotropic structure and a coercivity, H.sub.c, of at least 30 Oe.

Abstract: A precipitation hardenable, martensitic stainless steel alloy is disclosed consisting essentially of, in weight percent, about______________________________________ C 0.03 max Mn 1.0 max Si 0.75 max P 0.040 max S 0.020 max Cr 10-13 Ni 10.5-11.6 Ti 1.5-1.8 Mo 0.25-1.5 Cu 0.95 max Al 0.25 max Nb 0.3 max B 0.010 max N 0.030 max ______________________________________the balance essentially iron. The disclosed alloy provides a unique combination of stress-corrosion cracking resistance, strength, and notch toughness.

Abstract: A ferritic, stainless steel alloy containing in weight percent about 0.05% max. C, 2.0% max. Mn, 0.70-1.5% Si, 0.1-0.5% S, 15-20% Or, 0.80-3.00% Mo, 0.10-1.0% Nb, 0.06% max. N, and the balance iron and impurities, provides a unique combination of magnetic properties, corrosion resistance, and machinability.

Abstract: A nuclear fuel channel has four corners and four elongated sidewalls disposed between the corners so as to provide a polygonal transverse cross-section. Each of the channel sidewalls has a longitudinal centerline that coincides with a line of maximum stress that is imposed on the sidewall during in-reactor service. The sidewalls have one or more longitudinal off-center lines that are located between the longitudinal centerline and one of the corners abutting the elongated sidewall. The longitudinal off-center line coincides with a line of minimum stress imposed on an elongated sidewall during in-reactor service. A weld is formed along the length of the off-center line on at least two of the sidewalls. At least one of the off-center line welds is also a seam weld. The disclosed arrangement provides improved resistance to bulging of the channel sidewalls during in-reactor service.

Abstract: An age hardenable nickel base chromium, molybdenum, alloy as well as intermediate products and articles made therefrom are disclosed which, in the solution treated and age hardened condition, have a 0.2% yield strength greater than 100 ksi combined with resistance to pitting and crevice corrosion and to stress corrosion cracking in chloride and sulfide environments at elevated temperatures up to about 500.degree. F. without requiring working below the recrystallization temperature of the alloy. Broad and preferred ranges are disclosed as follows:______________________________________ Broad (w/o) Preferred (w/o) ______________________________________ C 0.1 Max. 0.03 Max. Mn 5 Max. 2 Max. Si 1 Max. 0.5 Max. P 0.03 Max. 0.015 Max. S 0.03 Max. 0.010 Max. Cr 16-24 18-22 Mo 7-12 7.5-11 W 4 Max. -- Nb 2-6 2.75-4.25 Ti 0.50-2.5 0.75-1.5 Al Trace-1 0.05-0.35 B 0.02 Max. 0.001-0.006 Zr 0.50 Max. 0.08 Max. Co 5 Max. -- Cu 0-3 0.5 Max. N 0.04 Max. 0.01 Max. Fe 20 Max.

Abstract: An austenitic, stainless steel alloy consists essentially of, in weight percent, about:______________________________________ C 0.030 max Mn 2.0 max Si 1.0 max P 0.05 max S 0.02-0.05 Cr 16.0-20.0 Ni 9.8-14.0 Mo 3.0 max Cu 0.8-1.5 N 0.035 max ______________________________________up to about 0.75 weight percent of an element selected from the group consisting of Ti and Cb, and the balance is essentially iron, wherein Cb is not more than about 0.1 weight percent when Ti.gtoreq.(5.times.% C.) and Ti is not more than about 0.1 weight percent when Cb.gtoreq.(10.times.% C.). The alloy provides a unique combination of machinability, corrosion resistance, formability, and mechanical properties.

Abstract: A soft magnetic article is disclosed which is formed of an alloy consisting essentially of, in weight percent, about______________________________________ C 0.003-0.02 Mn 0.10 max. Si 0.10 max. P 0.01 max. S 0.003 max. Cr 0.1 max. Ni 0.2 max. Mo 0.1 max. Co 48-50 V 1.8-2.2 Nb 0.15-0.5 N 0.004 max. O 0.006 max. ______________________________________with the balance essentially iron. The article is annealed at a temperature of not more than 740.degree. C. (1364.degree. F.) for not more than about 4 hours and provides a room temperature yield strength of at least about 620 MPa (90 ksi) in the annealed condition. Among the disclosed embodiments of the annealed article according to this invention are a rotor and a stator for a rotating electrical machine such as a motor, generator, alternator or a magnetic bearing.

Abstract: An austenitic, stainless steel alloy having a unique combination of machinability and a low magnetic permeability, especially in the cold worked condition, is disclosed consisting essentially of, in weight percent, about______________________________________ C 0.l035 max Mn 1.0-4.0 Si 1.0 max P 0.2 max S 0.15-0.45 Cr 16.0-20.0 Ni 9.2-12.0 Mo 1.5 max Cu 0.8-2.0 N 0.035 max Se 0.1 max ______________________________________with the balance essentially iron.

Abstract: A powder metallurgy article formed from a Co--Cr--Mo alloy powder and a method for making the article are disclosed. The Co--Cr--Mo alloy powder contains, in weight percent, about 0.35% max. C, about 1.00% max. Mn, about 1.00% max. Si, about 26.0-30.0% Cr, about 5.0-7.0% Mo, about 3% max. Ni, about 0.25% max. N, about 1.00% max. Fe, about 0.01% max. of oxide forming metals, and the balance is essentially Co. Within their respective weight percent limits C and N are controlled such that they satisfy the relationship:62.866+360.93.times.(%C)+286.633.times.(%N)-682.165.times.(%C).sup.2 -641.702.times.(%N).sup.2 .gtoreq.120.

Abstract: A process for fabricating a welded metallic duct assembly includes the steps of forming tubing from a flat form of a metal or alloy, annealing the tubing while applying radially directed pressure to a surface thereof, and then welding an end of the tubing to an article such as a flange, fitting, connector, spacer, or similarly processed tubing to form a duct assembly. The annealing step includes thermal sizing of the tubing in a manner that relieves residual stresses resulting from the forming process. A welded duct assembly fabricated in accordance with this process is substantially free of distortion in the heat affected zone of the weld that adversely affects the fatigue life of the ducting.