Abstract: A high strength cold rolled strip having excellent deep drawability and resistance to deterioration by natural aging and to planar cracking and useful for motor vehicles, is produced by hot rolling a steel slab comprising0.008-0.020% by weight of C,0.01-0.45% by weight of Mn,0.05-0.10% by weight of P,0.005-0.050% by weight of acid-soluble Al,and the balance consisting of Fe and unavoidable impurities in which N is limited to a content of 40 ppm or less, at a temperature of 1200.degree. C. or less but not lower than the Ar.sub.3 point of the steel slab; by cold rolling the resultant steel strip at a rolling reduction of 65% or more; by continuously annealing the cold rolled steel strip at a temperature of from 700.degree. to 900.degree. C. for 20 seconds to 3 minutes; by cooling the steel strip at a cooling rate of 5.degree. C./sec or more; by overaging the annealed steel strip at a temperature of from 320.degree. to 450.degree. C.

Abstract: The present invention relates to a hot-gunning method for repairing converters which comprises the step of:gunning a composition onto the lining of the converter, the composition including,(a) 8-15% by weight water;(b) 20-40% by weight of pellets prepared by mixing 40-60% by weight of magnesia clinker powder containing more than 75% by weight of MgO and having a particle size of less than 1 mm with 60-40% by weight of molten tar and dropping the resulting mixture into water or cooled air; and(c) the substantial balance of said composition being a refractory material selected from the group consisting of magnesia clinker, dolomite clinker, chrome ore and mixtures thereof.

Abstract: A continuous, high speed method of galvanizing and annealing a continuously travelling low carbon ferrous wire to provide a highly corrosion resistant, more ductile wire having a bright silvery luster comprising, (a) passing a continuously travelling low carbon steel wire after it has been cleaned through a zinc electroplating bath to deposit a zinc coating on the wire, (b) passing the resulting coated wire through a bath of molten aluminum-zinc eutectic alloy maintained at a temperature of about 734.degree. F. to about 786.degree. F. and comprising a major portion of zinc and sufficient aluminum to provide an aluminum-zinc alloy having a melting point less than that of zinc, to provide a coated ferrous wire, (c) drawing down the coated continuously travelling ferrous wire to a lesser cross-sectional area, (d) process annealing the drawn continuously travelling ferrous wire at a temperature up to about 1400.degree. F.

Abstract: A high strength hot rolled steel sheet having excellent flash butt weldability, fatigue characteristic and formability, has a composite structure composed of polygonal ferrite and bainite and containing from 0.01 to 0.15% by weight of C, from 0.01 to 1.5% by weight of Si and from 0.3 to 2.0% by weight of Mn, the rest being Fe and impurities, the areal ratio of the bainite being from 3 to 60%. The steel sheet is suitable as a material for wheel rims or discs for automobiles.

Abstract: A copper based alloy consisting essentially of about 4-15 wt. percent nickel, about 4-8 wt. percent tin, the balance essentially copper, to which was added to said copper, nickel and tin, prior to casting, about 0.002-0.4 wt. percent of rhenium. Improved grain structure in the as-cast metal, as well as a retained finer grain structure through homogenization anneals is realized. Finer grain structure after standard processing with attendant improved cold working characteristics, and improved strength for strip material made by standard processing procedures is also obtained. The invention is further directed to the method of producing the alloy.

Abstract: A steel stock consisting, in basic composition, of C.ltoreq.0.12%, 0.5-1.0% Mn, 0.10-0.25% Si, P.ltoreq.0.015%, S.ltoreq.0.0020%, Nb.ltoreq.0.050%, 0.0010-0.0060% Ca and the remainder of Fe and negligible traces of impurities is hot rolled, this hot rolling being finished at a temperature above 870.degree. C. The steel is then rapidly cooled on a runout table at an average cooling rate of from 5.degree. C. to 30.degree. C. per second, and finally, the steel is coiled at a temperature below 570.degree. C. The steel stock has superior resistance to sour gas.

Abstract: In a method for producing an Nb.sub.3 Sn superconductor which comprises elongating a composite composed of a core portion of an alloy containing niobium and a matrix portion of a copper-tin alloy, a copper-tin-aluminum alloy or a copper-tin-gallium alloy and heat-treating the elongated composite to form an Nb.sub.3 Sn layer between the core portion and the matrix portion; the improvement wherein the core portion of the composite is made of a niobium-titanium alloy containing 0.1 to 10 atomic percent of titanium.

Abstract: The austenite alloy tube has a composition of 15.about.26% of Cr, 8.about.35% of Ni, 1.0% or less of Si, 2.0% or less of Mn and less than 0.25% of N and the balance of iron and impurities. The nitrogen content on the inner surface of the tube is at least 0.25%. If desired, one or more of 0.6% or less of Ti, 0.6% or less of Al, 3.0% or less of Mo and 1.0% or less of Nb may be incorporated.

Abstract: White, chromium cast iron having shock and impact resistance which comprise iron together with:______________________________________ Carbon: 2.2 to 3.6% by weight Chromium: 12.0 to 30.0% by weight Molybdenum: 0.0 to 3.0% by weight Nickel: 0.0 to 3.0% by weight Manganese: 0.0 to 2.0% by weight Copper: 0.0 to 3.0% by weight Vanadium: 0.0 to 1.5% by weight ______________________________________are disclosed. The casting are produced by casting the molten alloy in a metallic permanent mold, removing the solidified casting from the mold at a temperature above the A.sub.c3 temperature and cooling the casting sufficiently quickly to prevent the formation of pearlite as well as secondary carbide precipitation.

Abstract: A process for hot isostatic pressing of a metal workpiece, such as a ferrous casting. The workpiece is heated in a fluidized particulate bed (sand) to a temperature above the plastic range of the metal (e.g. 2000.degree. F.). Then, the workpiece in the unfluidized bed at this temperature is subjected to a superatmospheric gas pressure above 20,000 psi until internal mechanical property changes have occurred. Lastly, the workpiece is removed from the bed and superatmospheric pressure environment for subsequent utilization.

Abstract: Precipitation hardening type stainless steel comprising in % by weight, 0.03<C.ltoreq.0.08, 0.3.ltoreq.Si.ltoreq.2.5, Mn.ltoreq.4.0, 5.0.ltoreq.Ni.ltoreq.9.0, 12.0.ltoreq.Cr.ltoreq.17.0, 0.1.ltoreq.Cu.ltoreq.2.5, 0.2.ltoreq.Ti.ltoreq.1.0, and Al.ltoreq.1.0, the balance being Fe and impurities, the elements being further adjusted so thatA'=17.times.(C/Ti)+0.70.times.(Mn)+1.times.(Ni)+0.60.times.(Cr)+0.76.times. (Cu)-0.63.times.(Al)+20.871is less than 42.0, ##EQU1## is not more than 2.7, and.DELTA.Hv=205.times.[Ti-3.times.(C+N)]+205.times.[Al-2.times.(N)]+57.5.time s.(Si)+20.5.times.(Cu)+20is within the range between 120 and 210, said steel as solution treated and optionally slightly cold worked having a substantial martencite structure. The steel has a good mechanical workability before aging, and when age hardened, it develops improved hardness and toughness as well as an isotropic and improved spring performance.

Abstract: A high temperature wear resistant material is disclosed for use in engine components such as an exhaust valve seat insert to reduce high temperature exhaust valve seat wear. The material consists by weight of about 40-70% Cu, about 20-60% Ni, about 3-14% Al and up to about 1.5% other alloying ingredients with normal processing impurities.

Abstract: An alloy for the commercial production of ductile superconducting wire is prepared by melting together copper and at least 15 weight percent niobium under non-oxygen-contaminating conditions, and rapidly cooling the melt to form a ductile composite consisting of discrete, randomly distributed and orientated dendritic-shaped particles of niobium in a copper matrix. As the wire is worked, the dendritric particles are realigned parallel to the longitudinal axis and when drawn form a plurality of very fine ductile superconductors in a ductile copper matrix. The drawn wire may be tin coated and wound into magnets or the like before diffusing the tin into the wire to react with the niobium. Impurities such as aluminum or gallium may be added to improve upper critical field characteristics.

Abstract: A precipitation hardenable alloy suitable for forming molds for continuous casting of steel and other metal containing, by weight, 0.2-2.0% nickel, 0.05-0.5% beryllium, 0.01-1.0% niobium and the balance essentially copper. The alloy is subjected to heat treatment including solution treatment and aging, so that it has improved strength, high thermal conductivity and high toughness at elevated temperatures. The alloy may contain 0.03-0.6 wt % zirconium, 0.03-0.6 wt % zirconium and 0.01-0.1 wt % magnesium, or 0.03-0.6 wt % zirconium and 0.01-0.2 wt % titanium in place of the 0.01-1.0 wt % niobium.

Abstract: A halter for horses wherein the halter includes a headstall composed of a strap encircling the forward portion of the neck at the head, the strap being provided with a conventional buckle or other separable securing device, and the encircling strap of the headstall also having, operatively coupled in parallel with the conventional buckle, a separable fastener which is disengageable under the influence of a predetermined amount of force tending to separate the encircling strap portions.

Abstract: A method of producing a dual phase structure cold rolled steel sheet having tensile strength 35 to 50 kg/mm.sup.2, yield ratio less than 60% and high elongation which comprises hot rolling and cold rolling by conventional process a steel containing 0.01 to 0.05% C, less than 0.2% Si, 1.7 to 2.5% Mn, 0.01 to 0.10 Al with the balance being Fe and unavoidable impurities, holding the produced steel sheet for 20 seconds to 20 minutes at a temperature 720.degree. to 850.degree. C., and cooling the steel sheet at a cooling speed between 3.degree. and 50.degree. C. per second and also above a value (.degree.C. per second) shown by following formulae:12.times.[Mn(%)].sup.2 -62.times.[Mn(%)]+81.

Abstract: A method for manufacturing high strength rail having excellent weldability comprises subjecting a steel rail of specific composition to specific heat treatment conditions at the surface layer portion of the head thereof, to impart high strength to the rail and to assure that the welded portion as well as the welded heat affected zone are free from deterioration caused by the welding process. The heat treatment conditions include a cooling rate which is substantially equivalent to that in a conventional welding process so as to impart high tensile strength to the treated portion of the rail.

Abstract: A rimmed steel product, in as-hot-rolled, or cold rolled and annealed form, is made essentially non-aging by inclusion of one or both of the aging-retardant elements vanadium and boron, while retaining an excellent, clear surface that is not adversely affected by the presence of such element or elements. To produce such articles, an ingot mold is poured 80 to 95% full of plain rimming steel, and the molten steel is allowed to rim, e.g. for several minutes, until a rimmed shell solidifies against the mold wall. Then pouring is completed with the same steel, while adding one or both of the aging-retardant elements to the teemed stream. Processed like rimmed steel, ultimate rolled (e.g. strip) products having a thin, truly rimmed skin over a main body of substantially non-aging steel, are found to exhibit no unwanted change of properties (e.g. as would be revealed by significant strain lines) such as usually characterizes the effect of aging in rimmed steel.

Abstract: Copper alloys are disclosed which contain nickel and tin and Fe, Zn, Mn, Zr, Nb, Cr, Al, or Mg in amounts within specified limits. When cold worked and aged according to a critical schedule these alloys develop a predominantly spinodal structure which renders them strong as well as ductile. The disclosed alloys are useful, for example, in the manufacture of components of electrical apparatus such as springs, connectors and relay elements.

Abstract: The production process characterized in that a steel ingot or slab containing not less than 0.004% of TiN not larger than 0.02.mu. is heated to a temperature not higher than 1150.degree. C. and rolled, and growth of the .gamma. grains during this heating and rolling step is prevented by TiN to improve the toughness, and the resultant steel product has an excellent low-temperature toughness with a yield point of 40 kg/mm.sup.2 or higher, and is useful as hot rolled or as heated at a temperature ranging from 300.degree. to 750.degree. C. after the hot rolling.