Abstract: A hot rolled, high strength, low alloy steel strip is prepared from a steel having a controlled composition employing small quantities of Cb and V, and the steel is renitrogenized. Deliberate Si addition is avoided. The carbon and manganese contents are controlled, and a sulfur controlling agent is employed. Hot rolling practice is controlled. The hot rolled steel strip has a microstructure consisting essentially of a ferrite matrix with scattered pearlite, a relatively fine ferrite grain size and excellent yield strength and ductility.

Abstract: This invention is directed to a method and to the resulting product, wherein said product is a low-carbon dual phase steel having a combination of high strength, good ductility and a YS/TS ratio .ltoreq.0.6. The method includes the steps of (1) preparing an Al-killed steel consisting essentially of 0.05 to 0.15 wt. % C, up to 2.0 wt. % Mn, up to 1.0 wt. % Si, 0.03 to 0.15 wt. % V and a sufficient amount of titanium to "getter" the excess sulfur and nitrogen, with the balance essentially being iron, where the titanium addition should be at least equal to the atomic percent of the sulfur plus nitrogen, but no more than about 1.6 times, (2) intercritically annealing such steel within the .alpha.+.gamma. temperature range, and (3) cooling to room temperature.

Abstract: A new precipitation hardened, high strength plate product has been developed that attains 80 ksi minimum strength together with excellent toughness, high formability and weldability without heat treatment or the need to cool at rates faster than air cooling. The optimum mechanical properties are achieved by a critical balance of carbon in the range of from 0.20-0.26%, manganese in the range of from 1.0-1.7%, vanadium in the range of from 0.08-0.20%, and at least one of from 0.01 to 0.025 nitrogen and from 0.01 to 0.10 columbium, processing the steel to obtain interphase precipitation strengthening, and by a controlled rolling procedure in which there is no substantial rolling below the Ar.sub.3 temperature.

Abstract: Process for producing a deep-drawing cold rolled steel strip by continuous annealing which comprises hot rolling a steel containing not more than 0.06% C, not more than 0.40% Mn, 0.0005 to 0.0020% B, the ratio of B/N being in the range from 0.5 to 1.5 and the balance being iron and unavoidable impurities, coiling the hot rolled steel strip at a temperature not higher than 680.degree. C., cold rolling and continuously annealing the hot rolled strip.The process produces super deep-drawing cold rolled steel strips without overageing treatment.

Abstract: An improved method for the manufacture of hot strips or heavy plates from a denitrated steel composed of 0.04 to 0.16% carbon, 1.25 to 1.90% manganese, 0.2 to 0.55% silicon, 0.004 to 0.020% phosphorus, 0.002 to 0.015% sulfur, 0.02 to 0.08% aluminum, 0.02 to 0.08% niobium, the remainder iron and possibly contaminants, including the steps of having the hot strips or plates leaving the last finishing stand of rolls at a temperature of 750.degree. C. to 820.degree. C., cooling the hot strips or plates to an intermediates temperature of 450.degree. C. to 500.degree. C. at a cooling rate of 2.degree. to 10.degree. C./s and then slowly cooling the hot strips or plates in air to room temperature in a coil or in a pile.

Abstract: The disclosure teaches improved cast copper alloys exhibiting surprisingly good hot rollability and a method of processing copper base alloys to provide cast structures having good hot rollability, especially those containing silicon and tin. In accordance with the method of the invention, ingots are direct chill cast in a mold from liquid metal wherein the melt temperature entering the mold is 100.degree. to 350.degree. C. in excess of the liquidus temperature.

Abstract: The invention relates to crushing bodies forged from steel having a high carbon content and a finely divided martensitic structure throughout, comprising a carbide content of 2 to 6% by weight, in the form of mixed iron and chromium carbides of the (Fe, Cr).sub.3 C type.The process for manufacturing these crushing bodies consists in bringing up to a temperature of the order of 900.degree. to 1100.degree. C. a bar or billets of cast or moulded steel and having the desired composition, said bar is possibly cut into billets at said temperature, and said billets are forged at said temperature of 900.degree. to 1100.degree. C.These crushing bodies allow the crushing of very abrasive materials, for a limited cost.

Abstract: This invention is directed to a thermal-mechanical process, and to the product thereof, for treating carbon or low alloy steels to improve their strength and toughness. The process is characterized by the steps of austenitizing a carbon or low alloy steel workpiece, preferably in the form of a slab, reducing said slab at a temperature above about 1900.degree. F. (1038.degree. C.) to a thickness in the range of 2 to 4 inches (5.1 to 10.2 cm), controlled quenching to effect thermal equilibration until a surface-to-center thermal gradient within a temperature range of 50.degree. to 150.degree. F. (28.degree. to 83.degree. C.) is reached, and initiating working such control quenched workpiece at an average temperature within the range of 1450.degree. to 1750.degree. F. (788.degree. to 954.degree. C.). The reduced steel product, having been treated in accordance with said thermal-mechanical process to yield a rolled steel plate having a thickness between about 0.5 to 1.25 inches (1.3 to 3.

Abstract: A cast iron alloy composition comprising 2.5-3.5% carbon, 0.5-1.0% manganese, 0.25-1.5% silicon, 13-19% chromium, 0.8-3.0% nickel, balance essentially iron which is machinable in the annealed condition and abrasion resistant in the hardened condition. The alloy may be annealed by furnace cooling, at a rate between 100.degree. C. and 350.degree. C./hr., from the austenitizing temperature, and hardened by air cooling from the austenitizing temperature.

Abstract: A process for improving the fatigue strength and fatigue life of a substantially single phase copper-aluminum-silicon alloy is described. The process comprises cold working the copper alloy from about 75% to about 98% and heating the alloy at a temperature of about 200.degree. C. to about 350.degree. C. for a time period of at least about 5 minutes.

Abstract: New copper-rich metal alloys containing nickel along with certain specific amounts of boron are disclosed. The alloys are subjected to a rapid solidification processing (RSP) technique which produces cooling rates between .about.10.sup.5.degree. to 10.sup.7 .degree. C./sec. The asquenched ribbon, powder, etc. consists primarily of a metastable crystalline solid solution phase. The metastable crystalline phases are subjected to suitable heat treatments so as to produce a transformation to a stable multiphase microstructure, which includes borides. This heat treated alloy exhibits superior mechanical properties with good corrosion and/or oxidation resistance for numerous engineering applications.

Abstract: A high performance carbon steel tubular for critical Oil Country applications and an improved process for its preparation are disclosed. The tubular is particularly adapted for use in deep wells where the tubular may be subjected to high pressure, wide temperature ranges, and/or corrosive environments, which may include hydrogen sulfide, carbon dioxide, and brine water, together with hydrocarbons. The process comprises forming a bloom from a modified 41XX killed steel, upset forging and piercing the steel bloom into a cylindrical extrusion billet, cold machining the inside and outside diameters of the extrusion billet to be concentric and cold machining the nose of the extrusion billet, reheating and extruding the billet to form an extruded shell, intercritically heat treating the shell, removing surface defects, cold working the tubular shell to finished dimensions, intercritically heat treating the sized tubular, and quenching and tempering the finished tubular.

Abstract: A high-strength cold-rolled steel sheet with dual-phase structure, recently developed by the Japanese steel producers have a low yield ratio of approximately 0.6 or lower, is free of the yield-point elongation and is of excellent press-formability. One of the production methods of this steel is a continuous annealing at a temperature range of two-phase structure of ferrite (.alpha.)+austenite (.gamma.). In order to improve the formability, the artificial-aging hardenability after forming, yield ratio and ductility over those of the known dual-phase steel, the present invention provides a method for producing a dual-phase steel, which comprise a step of cooling from the annealing temperature to a temperature not higher than 200.degree. C. at an average cooling rate (R.sub.1) in the range of 1.degree. C./second.gtoreq.R.sub.1 .ltoreq.30.degree. C./second over the primary cooling stage from the annealing temperature down to an intermediate temperature (T) in the range of 420.degree. C..ltoreq.T.ltoreq.700.

Abstract: Chromium-molybdenum structural steels which have high tensile strength, low susceptability to temper embrittlement, high hydrogen attack resistivity and high temperature ductility and which can be formed into very thick steel plates comprise 0.05 to 0.20% of C, 0 to 0.15% of Si, 0.46 to 1.00% of Mn, 2.00 to 3.50% of Cr, 0.80 to 1.20% of Mo, 0.00015 to 0.0015% of B, 0.005 to 0.070% of Sol. Al and inevitably entrained impurities, the balance to make up 100% of Fe. Preferably the inevitably entrained impurities of nitrogen and phosphorus are below 0.0060% of N and 0.0010% of P.

Abstract: A process for producing formed copper beryllium alloys. The process includes the steps of: preparing a copper beryllium melt; casting the melt; hot working the cast copper beryllium; solution annealing the copper beryllium; optionally cold working the solution annealed copper beryllium; forming the copper beryllium; and age hardening the formed copper beryllium; and the improvement comprising the step of preaging the solution annealed or solution annealed and cold worked copper beryllium, prior to forming, at a temperature of from 400.degree. to 1000.degree. F. for a period of up to 180 seconds, the copper beryllium being at final gauge prior to preaging.

Abstract: Process for producing a ferrite stainless steel having excellent workability, comprising hot rolling a ferrite stainless steel slab with a total reduction of at least 80% in a temperature range of from 1150.degree. C. to 900.degree. C. at the central portion of the slab thickness, and, without annealing the hot rolled sheet, cold rolling the hot rolled sheet by a single step into a final thickness.

Abstract: Internal structure of a metal strip is monitored by applying cyclically varying magnetic flux to the strip and sensing the flux induced in the strip. Signals corresponding to the magnetic field intensity of the applied cyclically varying field and to the resulting induced flux indicate the loss of energy due to the internal structure of the strip. Making a similar determination by similar monitoring apparatus following annealing of the strip allows the effect of the annealing to be determined. The signals from the two monitoring apparatus can be used to generate a comparison signal to control the operation of the annealing treatment apparatus.

Abstract: A high strength nickel base superalloy having a novel microstructure is described. The article consists of a gamma matrix containing a oriented gamma prime second phase having a plate or rod form. This noncuboidal gamma prime phase is produced by aging solution treated material under an applied stress. When this process is applied to a certain class of superalloys which are rich in refractory elements, the resultant structure provides exceptional resistance to creep at elevated temperatures.

Abstract: Niobium-aluminum superconducting wire and other shaped articles are made by heating a precursor body which comprises niobium, an auxiliary element which is more easily oxidizable than aluminum, and aluminum oxide, the aluminum oxide being supported by a surface or a matrix comprising niobium and the auxiliary element. Among suitable auxiliary elements are zirconium, hafnium, scandium, yttrium, and the nonmagnetic rare earths.

Abstract: Ferrite-austenitic two-phased stainless steel with high corrosion resistance and toughness containing the following, which may be manufactured easily by furnace melting in the atmosphere composition (by weight %)______________________________________ C less than 0.10% Si less than 1.5% Mn less than 1.5% P less than 0.04% S less than 0.04% Cr 22-30% Ni 3-6% Mo 0.5-1.5% Cu 0.4-1.0% N less than 0.1% Nb 0.1-0.24% Fe Balance and Creq/Nieq is 3-4.