Abstract: A process for producing a wire rod for cold forging comprising:rapidly cooling the wire rod after hot rolling so as to give a rapidly cooled structure to the wire rod and to form a predetermined thickness of scale on the wire rod; andsubjecting the rapidly cooled wire rod with the scale to spheroidizing annealing in an inert gas containing 0.1% or less moisture.

Abstract: Chromium-molybdenum steels which have high strengths, good hydrogen attack resistivities, good high-temperature ductilities and high creep rupture strength, and which, when formed into steel plates, welded and given a high-temperature strain relief annealing treatment will acquire high resistivity to creep damage, comprises 0.11 to 0.17% of C, 0.50 to 1.20% of Si, 0.46 to 1.00% of Mn, 1.00 to 1.50% of Cr, 0.45 to 0.65% of Mo, 0.00015 to 0.0015% of B, 0.010 to 0.100% of Sol. Al and inevitably entrained impurities, the balance to make up 100% of Fe. Preferably the inevitable nitrogen and phosphorus impurities are kept below 0.0060% of N and 0.010% of P.

Abstract: This invention provides two stabilized corrosion resistant ferritic stainless steels particularly suitable for long term use as tubing in the service environments frequently found in moisture separator reheater and feedwater preheater equipment in the steam supply systems of commercial electrical power generating stations.

Abstract: A process for producing a cold rolled steel strip having excellent workability by a short-time continuous annealing, which process is constituted by hot rolling a low carbon steel slab of steel having a carbon content of from about 0.003 to 0.08% into a steel strip; cold rolling the hot rolled steel strip; rapidly heating the cold rolled steel strip to a recrystallization temperature range at a heating rate not less than 40.degree. C./second; slowly heating the thus rapidly heated steel strip to an annealing temperature at a heating rate ranging from 5.degree. to 30.degree. C./second; annealing the thus slowly heated steel strip at an annealing temperature T which is no lower than 700.degree. C. and no higher than the A.sub.3 transformation temperature and for an annealing time t no shorter than [8-0.03 (T-680)] seconds and no longer than [80-0.15 (T-680)] seconds, initially slowly cooling the thus annealed steel strip at a cooling rate less than 50.degree. C.

Abstract: A corrosion-resistant weldable martensitic steel essentially consists of carbon 0.06 to 0.10 weight percent, chromium 15.1 to 16.5 weight percent, nickel 3.5 to 4.45 weight percent, silicon 0.10 to 0.60 weight percent, manganese 0.20 to 0.50 weight percent, at least one element selected from the group consisting of niobium 0.25 to 0.40 weight percent and zirconium 0.05 to 0.20 weight percent, at least one element selected from the group consisting of yttrium 0.05 to 0.20 weight percent, cerium 0.05 to 0.15 weight percent and lanthanum 0.05 to 0.15 weight percent, phosphorus not exceeding 0.025 weight percent, sulfur not exceeding 0.02 weight percent, copper not exceeding 0.20 weight percent, the remainder being substantially iron and unavoidable nonferrous impurities. The process for the manufacture of the steel comprises the steps of preparing a molten mass of said composition, pouring the molten mass into a mould and permitting it to solidify therein followed by cooling an ingot produced.

Abstract: A ferritic stainless steel containing 12.00-25.00% of Cr, 0.1-2.0% of Cu and 0.2-2.0% of Nb with sulfur being restricted to not greater than 0.02%, preferably not greater than 0.005% is hot rolled with a finishing temperature of 850.degree. C. or less, which is lower than the usual finishing temperature, and the resulting hot rolled steel strip is annealed at a relatively high temperature of 950.degree.-1050.degree. C. The resulting cold rolled steel sheet, though it is less expensive, possesses good formability, ridging resistance, surface appearance and corrosion resistance, and is particularly suitable for making ornamental articles, such as automotive mouldings.

Abstract: In a process for the production of cold rolled ferritic stainless steel sheets or strips, a hot rolled strips has been annealed by a long time batchwise annealing and cold rolling and recrystallization annealing have been repeated usually twice. In the present invention, a hot rolled steel strip of an Al-containing ferritic stainless steel is heated by continuous annealing to a temperature of from 850.degree. to 1100.degree. C., AlN (aluminum nitride) is precipitated in the dispersed state and then cooling the strip to a temperature of 700.degree. to 900.degree. C., performing subsequent cooling to a level not higher than 200.degree. C. at such a cooling rate that a chromium depletion layer, which causes a gold dust defect, is not formed around the chromium carbonitride. Single cold rolling and recrystallization annealing are carried out in combination until the thickness is reduced to the gauge thickness.

Abstract: A gas turbine, copper-based alloy part having a crystalline structure in which grain boundaries are elongated in the direction of principal stress applied to the part when in turbine service exhibits especially enhanced strength and fatigue resistance in such direction. The part is prepared in a process in which it is first cast to shape in a mold and then directionally solidified by substantially limiting the heat flow from the part to a direction parallel to the principal stress direction.

Abstract: A corrosion resistant austenitic stainless steel alloy and articles made therefrom consisting essentially in weight percent of______________________________________ (w/o) ______________________________________ C 0.03-0.1 Mn 4-11 Si 0.6 Max. Cr 20-23 Ni 14-18 Mo 4.8-5.6 B 0.01 Max. Ce + La 0.4 Max. Al 0.1 Max. C + N 0.23 Min. ______________________________________in which nitrogen ranges from a minimum of 0.15 w/o to no more than the amount that can be retained in solid solution, the balance being essentially iron, and the elements being balanced so that cold rolled annealed specimens prepared with a crevice and tested in accordance with ASTM G48-76 in 10 w/o FeCl.sub.3 .multidot.6H.sub.2 O at 50.degree. C. for 72 hours have a weight loss of less than 0.3 gram. An embodiment that is particularly well suited for making autogeneously welded articles, e.g.

Abstract: A molybdenum-based alloy contains 0.001 to 0.5% of scandium. This alloy allows working at relatively low temperatures.

Abstract: A hydrogen storage Ti-Fe alloy of the general formula, Ti.sub.1-x A.sub.x Fe.sub.y-z B.sub.z, in which A is Zr, Hf or a mixture thereof, B is a member selected from Cr, Cu, Co, Mo, V, Ni, Nb, Mn and a mixture thereof, and x, y and z are values of certain ranges, respectively. The alloy is predominantly comprised of an effective alloy phase of CsCl type body-centered cubic crystals. The alloy of the formula where z=O is within the scope of the invention. A process for making an alloy of this type is also disclosed.

Abstract: Process of making as-pierced tubular steel casing having a yield strength of 80-110 ksi, a minimum tensile strength of 100 ksi, and a minimum elongation of 121/2% in two inches. The steel is stengthened by precipitation of vanadium carbides, including carbonitrides, and has a ferrite-pearlite microstructure with a ferrite grain size of about ASTM 7 or finer.

Abstract: Non-ageing cold rolled steel sheets having a very excellent formability are produced by hot rolling a steel consisting of not more than 0.008% of C, not more than 0.20% of Si, 0.04-0.30% of Mn, not more than 0.03% of P, 0.01-0.10% of Al, a content of Al being more than N%.times.4, not more than 0.02% of S, not more than 0.01% of N, 0.01-0.07% of Nb, a content of Nb being C%.times.3-{C%.times.8+0.02}%, and the remainder being substantially Fe, at a total reduction of not less than 90%, a rolling speed of not less than 40 m/min in the finishing rolling and a finishing temperature of not lower than 830.degree. C., coiling the hot rolled strip at a temperature of 600.degree.-800.degree. C., cold rolling the coiled strip following a conventional manner to obtain a cold rolled strip having final gauge and then continuous annealing or hot-dip galvanizing the cold rolled strip within a temperature range of 700.degree.-900.degree. C. for 10 seconds-5 minutes.

Abstract: Disclosed herein is a method for manufacturing a superconductor with a superconductive intermetallic compound by means of techniques employing solid-state diffusion in a heat treatment, wherein, in order to increase the effective current density and the critical current of such a superconductor, either the heat treatment for forming the superconductive compound is carried out in a hydrogen atmosphere, or, alternatively, a thermal post-treatment is carried out in a hydrogen atmosphere after the heat treatment for forming the superconductive compound is performed.

Abstract: A copper alloy for use as a lead material for semiconductor devices, which comprises 0.04-1.0% Ni, 0.01-0.3% Si, and 0.05-15% Zn, all by weight, and the remainder Cu and inevitable impurities. The alloy may contain, in addition to these, a total amount of 0.001-1.0% by weight of one or two or more elements as an accessory ingredient or ingredients selected from the group consisting of 0.001-0.1% by weight each of P and As and 0.01-0.5% by weight each of Ti, Cr, Sn, Mn, and Mg.

Abstract: A steel strip continuous annealing apparatus comprising: a steel strip feeder; a heating-soaking zone for heating and soaking the steel strip at a predetermined temperature; a first cooling zone for rapidly cooling the steel strip at a predetermined cooling rate; a second cooling zone for slowly cooling the steel strip or holding same at a predetermined temperature; a third cooling zone for cooling the steel strip to substantially the room temperature; and a steel strip carry-out device; wherein the first cooling zone incorporates therein forcible cooling means, the second cooling zone incorporates therein hot-cold change-over means and said forcible cooling means incorporated in the first cooling zone is provided thereon with self-cooling means; so that steel strips of various grades of steel different in required heat cycle to be applied thereto can be efficiently and stably annealed.

Abstract: A copper alloy with high strength and excellent electrical conductivity, corrosion resistance, and spring qualities, comprises 0.4-8% nickel, 0.1-3% silicon, 10-35% zinc, concomitant impurities, and the remainder copper, all by weight. It further comprises at least one element as an accessory ingredient or ingredients selected from the group consisting of 0.001-0.1 wt % each of phosphorus and arsenic and 0.01-1 wt % each of titanium, chromium, tin, and magnesium. The accessory ingredient or ingredients combinedly account for 0.001-2% of the total weight of the alloy composition.

Abstract: Method for direct heat treating austenitic stainless steel wire rod wherein a hot rolled austenitic stainless steel wire rod is rendered to finish the final finishing stand of a hot rolling mill at a temperature zone in the range of solution heat treatment, then the temperature zone of said solution heat treatment is so maintained that the austenitic crystal grain size is to be less than 7.0, and subsequently said wire rod is quenched to a temperature where no chromium carbide is precipitated at a cooling rate where no chromium carbide is precipitated.

Abstract: Zirconium-base alloy channels, fuel cladding tubes and other nuclear reactor structural components having unique resistance to accelerated pustular corrosion in the boiling water reactor environment are produced by a sequence of heat treatments causing segregation of intermetallic particulate precipitate phase in two dimensional arrays of particles of diameter from 100 to 400 Angstroms located along grain boundaries and sub-grain boundaries throughout the alloy body.

Abstract: A 10-35% Cr ferritic stainless steel stabilized with 0.20-1.00% of Nb wherein Nb%.gtoreq.(8.times.C%+2.0%) with impurities, such as carbon, nitrogen, phosphorous, oxygen and sulfur reduced to given levels is disclosed. By reducing the sulfur content to a level of not greater than 0.002%, preferably less than 0.001% or in cases where copper and/or nickel is added, to a level of not greater than 0.005%, the corrosion resistance of the resulting steel can markedly be improved. Since the ferritic stainless steel of this invention also exhibits a combination of good surface appearance and formability, it can be substituted for certain austenitic stainless steels not only as a general corrosion resistant material, but also as a material for making external automotive trims and so on.