Abstract: An air cooled refractory lance useful for either inert gas stirring or injection of oxygen into molten metal has an elongated refractory body having an axial bore terminating inwardly of one end in which several metal conduits are positioned with one of the conduits extending outwardly of the refractory body and forming a support and a conduit for air being introduced into the lance for cooling. Another of the conduits extends completely through the refractory body in coaxial relation and provides a path for a gas stream directed therethrough.

Abstract: This invention is directed to age hardenable copper beryllium alloys, and to articles and parts made therefrom, which contain special small amounts of beryllium and cobalt; e.g., about 0.2% to about 0.5% beryllium and about 0.2% to about 0.4% cobalt, which, when finished by solution treating, cold working at least about 50% or at least about 70% and age hardening have a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength.

Abstract: Disclosed is a process for producing titanium-containing cold rolled steel sheets and strips which can stand very severe press forming, which process comprising hot rolling, coiling at a temperature not lower than 700.degree. C., cold rolling and continuous annealing at a temperature, from 700.degree. to 900.degree. C., for 20 seconds to 2 minutes.

Abstract: The composite bimetallic roll for cold rolling obtained by casting comprises a heart metal constituted by a nodular or lamellar cast iron and a case metal constituted by a steel having a chromium content of 8 to 16% and a carbon content of 0.65 to 0.95%. The chromium/carbon ratio is between 11 and 16 and the structure of the case metal is martensitic with a content of residual austenite of less than 10%.

Abstract: A method of controlling the bowing action of fuel channels used in nuclear reactor cores is disclosed. Each channel is heat treated and mounted in its control rod module with an orientation dependent on its prior heat treatment. Upon exposure to radiation, the channels will bow in a desired direction away from the control rod.

Abstract: An abrasion-resistant high-chromium type of alloyed white iron, which can be hardened and toughened by refrigeration at sub-zero temperatures, containing as its essential alloying constituents about 2.6% to about 3.6% carbon, about 12% to about 22% chromium, about 0.5% to about 1.1% manganese, about 1.0% to about 3.0% molybdenum, about 0.5% to about 1.5% copper, about equal amounts of nickel and silicon in the range from about 1.4% to about 2.5% of each, and the balance iron along with conventional residual elements and incidental impurities present in usual amounts.

Abstract: An apex seal for rotary piston engines comprising a material containing in weight 2.5 to 4.0% of C, 1.5 to 3.0% of Si, less than 1.0% of Mn, 0.25 to 2.0% of Ni, 0.25 to 2.0% of Mo, 0.25 to 2.0% of Cu, 0.05 to 0.3% of B, 0.2 to 1.5% of Cr, 0.05 to 1.0% of V and balance substantially of Fe. The sliding surface portion of the seal is of a chilled structure containing in area ratio more than 55% of carbides and the body portion is essentially of bainite structure containing in area ratio less than 15% of carbides.

Abstract: The present invention provides high tensile strength cold rolled steel sheets having excellent formability, which consist of 0.002-0.015% of C, not more than 1.2% of Si, 0.04-0.8% of Mn, 0.03-0.10% of P, 0.02-0.10% and not less than N%.times.4 of Al, C%.times.3-{C%.times.8+0.020%} of Nb and the remainder being substantially Fe, as the high tensile strength steel sheets which reduce the weight of automobiles and the like. The steel sheet is produced by hot rolling a steel slab having the above described composition to obtain a hot rolled coil, in the hot rolling the total reduction rate being at least 90%, the rolling speed in the finishing rolling being at least 40 m/min and the coiling-up temperature being at least 600.degree. C.; cold rolling the above described hot rolled coil in a conventional process to obtain a cold rolled steel strip having a final gauge; subjecting the above described cold rolled steel strip to a continuous annealing at a temperature of 700.degree.-900.degree. C.

Abstract: A microalloy-free, high strength, low alloy, low carbon, manganese steel characterized by a dual phase microstructure wherein acicular retained austenite particles are distributed within a ferrite matrix. The ferrite-austenite microstructure is produced by a heat treatment comprising heating the steel above the upper critical austenite transformation temperature to produce an austenite microstructure; quenching to produce a lath martensite microstructure; tempering at a temperature below the lower critical austenite transformation temperature to partition carbon and manganese to form cementite particles and to transform the martensite to ferrite, thereby producing a microstructure comprising cementite particles dispersed within a ferrite matrix; annealing at an intercritical temperature to decompose the cementite and produce austenite particles; and quenching to retain the austenite particles within the ferrite matrix.

Abstract: This invention provides a novel method for the production of formed parts from copper beryllium alloys. More specifically, this invention provides a process for the virtual elimination of the non-reproducible distortion which is currently experienced during the precipitation hardening of parts formed from copper beryllium alloys. To this end the process comprises a series of mechanical and thermal treatments which minimize or eliminate non-reproducible distortion by relieving or decreasing the magnitude of residual stresses throughout the various steps of the process before the formation of precipitates becomes dominant and by providing a more even patterned distribution of precipitates in the matrix of the alloy both prior to and after a thermal aging process.

Abstract: A high ductility machinable cast iron with mixed austenitic-bainitic structure is made by a method which involves limiting the manganese content to less than 0.3% by weight and utilizing a substantially lower temperature austenitizing heat treatment (820.degree. to 830.degree. C.) for a shorter period (10 to 25 minutes) than has hitherto been considered to be necessary to achieve such structures. The low alloy cast iron can therefore be made from available scrap with low manganese content and at low cost.

Abstract: A silverless low gold dental alloy contains, by weight, 10-40% gold; 3-8% gallium; 0.5-10% indium and/or tin; 0.1 to 1.5% ruthenium, or iridium, or rhenium; balance palladium. The alloy is non-staining and bondable to and compatible with porcelain.

Abstract: A high-tension high-toughness steel excellent in resistance to delayed fracture which consists essentially of 0.15 to 0.50% of C, up to 1.50% of Si, 0.20 to 1.50% of Mn, up to 2.00% of Cr, 0.0005 to 0.0030% of B, 0.005 to 0.10% of acid-soluble Al, up to 0.010% of P, up to 0.0020% of N, 0.010 to 0.050% of Ti and the balance iron and inevitable impurities, and has a tempered martensitic structure obtained by quenching and tempering.

Abstract: A method of manufacturing a shadow mask includes the steps of perforating a number of apertures in a sheet of iron-nickel alloy, annealing the sheet, and forming the sheet, after annealing, into a shadow mask by pressing while the sheet is kept at a predetermined forming temperature effective to reduce the yield strength of the alloy.

Abstract: Low alloy steel shape of at least 3/16 inch thickness is produced by providing a steel consisting essentially of from about 0.02% to 0.07% carbon, 1.2% to 2.0% manganese, 0.020% maximum sulfur, up to 0.5% silicon, 0.1% to 0.4% molybdenum, 0.01% to 0.1% columbium, about 0.01% to 0.10% acid soluble aluminum, about 0.8% to 2.0% copper, about 0.4% to 2.0% nickel, residual chromium, and balance iron; hot reducing the steel to a desired final thickness with a total reduction in thickness of at least 30% while within the temperature range of about 1400.degree. to 1700.degree. F. whereby to avoid substantial recrystallization of austenite and to obtain a predominant heavily deformed austenite phase; and cooling at a rate which transforms the austenite phase to a predominantly fine acicular ferrite and lower-bainite phase.

Abstract: A method for adding alloying elements having relatively low boiling points to base metal shaving relatively high melting points. The base metal is combined with the melting point-lowering metal; or metalloid and to this mixture is added the desired alloying metal or metals. No special equipment is required for this method.

Abstract: A method for enhancing the strength and hardness properties of a starting copper alloy having a matrix structure which has been cold worked and heat treated. The method includes the step of additional cold working followed by additional heat treating to increase the strength of the alloy without significantly affecting the electrical conductivity of the alloy. The method produces a strong and highly conductive material suitable for use as a field magnet which must experience high operational stress while carrying large current loads. The starting alloy may be a copper-beryllium-nickel alloy.

Abstract: A process for producing steel wire or rod having high strength and ductility comprises the steps of(a) hot rolling a steel comprising 0.2-0.4%, by weight, of C, and 0.5-2.5%, by weight, of Mn, balance iron and inevitable impurities, while controlling the rolling conditions so that intermediate and final rolling temperatures are below 1000.degree. C., and the total reduction ratio at temperatures below 930.degree. C. is greater than 30%; thereby producing a steel consisting of work-hardened austenite having fine and uniform grains with an average austenite grain size of less than 25 .mu.m; and(b) cooling said steel immediately after rolling to a temperature below 350.degree. C. at an average cooling rate of 20.degree.-250.degree. C./sec, thereby forming a final phase in said steel of high ductility consisting essentially of martensite and a small amount of retained austenite.The resulting steel has a martensitic structure and has high strength combined with high ductility. Up to 0.1% of Nb, up to 0.

Abstract: An article of manufacture is provided comprising a heat treated high strength low-alloy steel tubular product of the L-80 and N-80 type suitable for use as an oil well tubular member. The composition consists essentially of about 0.1 to 0.4% C, about 0.075 to 0.4% Mo, about 0.002 to 0.03% N, about 0.75 to 1.5% Mn, about 0.1 to 0.4% Si, and the balance essentially iron, the carbon and molybdenum contents being controlled and correlated such that for a carbon content ranging from about 0.1 to 0.25%, the molybdenum content ranges from about 0.075 to 0.25%; and for a carbon content ranging from about 0.25 to 0.4%, the molybdenum content ranges from about 0.2 to 0.4%.

Abstract: A magnetic alloy having a relatively low melting point, particularly for dental use.The low melting point magnet alloy contains one or more elements of Co and Ni, a Co content of which being in the range of 79 wt. % or less, a Ni content being in the range of 80 wt. % or less, the remainder being essentially a Pd content.