Abstract: A non heat-treated steel of high strength, toughness and machinability which can be used in its as-worked state without calling for any special treatment after working. It contains less than 0.05 wt % C, 0.005 to 2.0 wt % Si, 0.5 to 5.0 wt % Mn, 0.1 to 10.0 wt % Ni, more than 1.0 to 4.0 wt % Cu, 0.0002 to 1.0 wt % Al, 0.005 to 0.50 wt % S and 0.0010 to 0.0200 wt % N.

Abstract: Systems are provided for vehicular, land-based distribution of pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123.degree. C. (-190.degree. F.) to about -62.degree. C. (-80.degree. F.). The systems include at least one container that is constructed from an ultra-high strength, low alloy steel containing less than 9 wt % nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73.degree. C. (-100.degree. F.).

Abstract: A method for producing a layer of a multi-layer electronic circuit package and resulting article of manufacture is provided comprising the steps of selecting a core material from one of three iron/nickel alloys, namely either (i) 58% Fe/ 42% Ni; (ii) 60% Fe/39% Ni/1% Cu; or (iii) 60% Fe/38.7% Ni/.12% Mn/.07% Si; forming the core material into a panel suitable for an intended application; cleaning the panel in preparation for plating; plating the panel with copper; subjecting the plated panel to heat treatment; and circuitizing the panel as appropriate for the intended application.

Abstract: A lowly decarburizable spring steel comprises, on a weight basis, 0.51 to 0.70% of C, 0.15 to 2.50% of Si, 0.40 to 1.20% of Mn, 0.005 to 0.100% of Al, 0.005 to 0.050% of S, at least one of 0.05 to 0.30% of Ni and 0.05 to 1.00% of Cu and, optionally, at least one of 0.20 to 1.50% of Cr, 0.05 to 1.00% of Mo, 0.01 to 0.50% of V, 0.010 to 0.300% of Nb and 0.0005 to 0.0050% of B, and the balance consisting of Fe and unavoidable impurities. The spring steel can be remarkably lowered in decarburizability during hot working and heat treatment thereof without need of any decarburization-proofing agents and any specific heat treatment equipment. Accordingly, it has a very excellent effect in that the decarburization thereof can be remarkably decreased with a low cost when it is applied to a coil spring, a flat spring or a torsion bar.

Abstract: A hot-rolled sheet steel for deep drawing, characterized in that it has the following composition:______________________________________ carbon >0.010 wt. % and <0.080 wt. % manganese >0.1 wt. % and <0.5 wt. % aluminum >0.02 wt. % and <0.08 wt. % silicon <0.1 wt. % phosphorus <0.04 wt. % sulfur <0.025 wt. % titanium <0.05 wt. % nitrogen <0.009 wt. % boron >0.001 wt. % and <0.01 wt. % copper >0.1 wt. % and <0.8 wt. % nickel >0.05 wt. % and <0.6 wt. %.

Abstract: Steel having excellent workability and deep drawability is produced by an electric furnace-vacuum degassing process. The steel has a composition which comprises about:C: 0.0050 wt % or lessSi: 1.5 wt % or lessMn: 1.5 wt % or lessP: 0.10 wt % or lessAl: 0.10 wt % or lessS: 0.020 wt % or lessO: 0.01 wt % or lessCu: 0.02-1.5 wt %Ni: 0.02-2.0 wt %Ti and/or Nb: from 0.001 to 0.10 wt %N: from 0.0040 to 0.0090 wt %.

Abstract: A plastic industry prototype mold and steel therefor having machining speed and weldability characteristics competitive with aluminum alloys, and a method of manufacture thereof, said composition containing C 0.05-0.35, Mn .50-1.50, P 0.025.times., S 0.100.times., Si 0.50.times., Ni 0.35-0.75, Mo 0.30-0.70, Cu 0.75-1.50, Al 0.20.times. and Fe bal.

Abstract: Steel useful for the manufacture of molds for the injection molding of plastics, the chemical composition of which includes, by weight: 0.03%.ltoreq.C.ltoreq.0.25%, 0%.ltoreq.Si.ltoreq.0.2%, 0%.ltoreq.Mn.ltoreq.0.9%, 1.5%.ltoreq.Ni.ltoreq.5%, 0%.ltoreq.Cr.ltoreq.18%, 0.05%.ltoreq.Mo+W/2.ltoreq.1%, 0%.ltoreq.S.ltoreq.0.3%, at least one element chosen from Al and Cu in contents of between 0.5% and 3%, optionally 0.0005%.ltoreq.B.ltoreq.0.015%, optionally at least one element taken from V, Nb, Zr, Ta and Ti, in contents of between 0% and 0.3%, optionally at least one element taken from Pb, Se, Te and Bi, in contents of between 0% and 0.3%, the remainder being iron and impurities resulting from the processing, especially nitrogen; the chemical composition additionally satisfying the relations: Kth=3.8.times.C+9.8.times.Si+3.3.times.Mn+2.4.times.Ni+.alpha..times.Cr+1. 4.times.(Mo+W/2).ltoreq.15, with .alpha.=1.4 if Cr<8% and .alpha.=0 if Cr.gtoreq.8%; Tr=3.8.times.C+1.07.times.Mn+0.7.times.Ni+0.57.times.Cr+1.

Abstract: The invention relates to a steel plate which exhibits a good resistance to a corrosive atmosphere, containing weakly acidic condensed water comprising SO.sub.2, Cl.sup.- ion, and CO.sub.2 such as the exhaust gas from a boiler which burns LNG.The steel plate having a good corrosion resistance to condensed water characterized in comprising a low C content, a low Mn content and a medium amount of Cr content, and further 0.01% or less of S in an unavoidable impurity, or further comprising at least one element of Si, Al, Cu, Ni, Mo, Nb, V, Ti, Ca, and B. More, the steel plate having a good corrosion resistance to condensed water comprising carbonic acid gas and chloride ion characterized in comprising a low C content, a low Mn content, P, Cu and Ni, and further 0.01% or less of S in an unavoidable impurity, or further comprising at least one element of Si, Al, Mo, Nb, V, Ti, Ca and B.

Abstract: An improved steel tube made from low sulfur steel wherein clean steel flat strip is formed into a circular form with its edges abutting and the edges are heated and pushed together to form a welded tube. The inside and outside beads are removed with cutting tools.

Abstract: A high strength low alloy steel having a yield strength of at least 100 ksi and a Charpy V-notch impact strength of at least 35 ft-lbs. at minus 84.degree. C. (minus 120.degree. F.) at thickness of up to 6 inches is provided wherein the steel consists essentially of an effective amount up to 0.036% carbon, for low temperature toughness up to 5% manganese, up to 1% silicon, up to 0.015% sulfur, 2 to 4% nickel, up to 2% copper, up to 0.1% niobium, and up to 0.1% aluminum, up to 4.% molybdenum, up to 4% chromium and the balance iron and incidental impurities and is characterized by low carbon bainite microstructure in the as-quenched condition.

Abstract: A toothed wheel for use in automobiles and a method for its manufacture are disclosed. The toothed gear is of a dish-shaped disk having a thickened peripheral edge portion in an outer and/or inner side of which gear teeth are shaped, at least the surface area of the gear teeth being of a martensite structure, the disk being made of a steel comprising a ferrite-cementite-graphite structure in which 50% or more of cementite has been changed to graphite, the steel composition of the disk consisting essentially of, by weight %:C: 0.20-0.70%, Si: 0.05-1.00%, Mn: 0.05-0.50%, sol. Al: 0.01-1.00%, N: 0.002-0.010%, B: 0.0003-0.0050%, Ca: 0-0.01%, Cu: 0-1.00%, Ni: 0-2.00%,and a balance of Fe and incidental impurities in which the content of P is restricted to not larger than 0.020% and the content of S is restricted to not larger than 0.010%.

Abstract: The present invention relates to a steel having improved weldability exhibiting good cracking resistance for high welding energies, good low-temperature toughness and requiring no preheating before welding.The composition by weight of the steel is the following:0.07 to 0.11% carbon,1.40 to 1.70% manganese,0.20 to 0.55% nickel,0 to 0.30% copper,0 to 0.02% niobium,0.005 to 0.020% titanium,0.002 to 0.006% nitrogen,0 to 0.15% silicon,the balance being iron.

Abstract: Fe-based soft magnetic alloy having excellent soft magnetic characteristics with high saturated magnetic flux density, characterized in that it has fine crystal grains dispersed in an amorphous phase and is expressed by the general formula:Fe.sub.100-a-b-c Cu.sub.a M.sub.b Y.sub.cwhere:"M" is at least one or more selected from elements of groups IVa, Va, VIa of the periodic table, Mn, Co, Ni, Al, and the Platinum group,"Y" is at least one or more selected from Si, B, P, or Cand 3<a.ltoreq.8 (atomic %)0.1<b.ltoreq.83.1.ltoreq.a+b.ltoreq.1215.ltoreq.c.ltoreq.28.Also described is a dust core made from an alloy powder having fine crystal grains dispersed in an amorphous phase and expressed by the formulaFe.sub.100-a-b-c-d-e Cu.sub.a M'.sub.b M".sub.c Si.sub.d B.sub.

Abstract: Steel having excellent vibration-damping properties and weldability includes about 0.02 wt % or less of C, about 0.02 wt % or less of Si, and about 0.08 wt % or less of Mn. This steel also includes about 0.05 to 1.5 wt % of Cu, about 1.0 to 7.0 wt % of Al, about 0.008 wt % or less of N, and Fe and incidental impurities which together constitute the remaining wt %.

Abstract: A corrosion-resistant carbon sheet steel with good stamping characteristics is disclosed as relating to compositions for steel resistant to atmospheric corrosion, obtained from a basis composition containing elements such as C, Mn, P, S, Al, Si, and Cu, to which are added in various ways the elements Sb, V, Cr, and Ni which make possible obtaining properties such as high resistance to corrosion associated with the stamping characteristics.

Abstract: Martensite-hardenable steel, particularly for the production of molds for plastic materials, which consists in weight % of______________________________________ carbon 0.06-0.2 silicon 0.15-0.8 manganese 1.4-3.6 sulfur 0.12-0.4 chromium 0-0.9 nickel 2.8-4.3 vanadium 0.03-0.15 copper 0.1-4.0 aluminum 0.1-4.0 aluminum + copper 0.9-4.1 niobium 0.03-0.12 zirconium 0.01-0.1 calcium 0-0.01 titanium 0.01-0.1 molybdenum 0-1.0 tungsten 0-1.0 Mo + W/2 0-1.5 residue: iron and production impurities.

Abstract: A semi-processed non-oriented electromagnetic steel strip having low core loss and high magnetic permeability is provided which consists essentially of, in % by weight, up to 0.02% of C, 0.2 to 2.0% of Si, 0.1 to 0.6% of Al, 0.02 to 0.10% of P, 0.5 to 1.5% of Mn, 0.1 to 1.0% of Ni, and optionally up to 0.6% of Cu, and optionally 0.01 to 0.2% of Sb and/or Sn, and a balance of iron and inevitable impurities. Magnetic properties are further improved when it is manufactured by hot rolling a slab having the composition at a temperature of from 1,100.degree. to 1,200.degree. C., completing hot finish rolling at a temperature of at least 700.degree. C. in the austenite region, annealing the strip at a temperature from 800.degree. to 880.degree. C. for at least one hour, cold rolling and annealing the strip, and optionally, skin pass rolling with a reduction of 2 to 12%.

Abstract: A highly wear-resistant sintered alloy is to be provided, with which, using conventional sintering technology and no additional hardening treatment, commodity parts are to be produced, which, in respect to their wear property are to be equivalent to chilled cast iron parts. They should have a surface roughness of approximately 50 Rockwell and only a slight shrinkage. This is accomplished with an iron-nickel-copper-molybdenum sintered alloy with addition of phosphorus, which contains a proportion of carbon, which exceeds the phosphorus added by at least a factor of 2. Essentially, the alloy has the following composition:1.0-5.0% (by weight) of nickel (Ni)1.0-3.0% (by weight) of copper (Cu)0.3-1.0% (by weight) of molybdenum (Mo)0.3-0.6% (by weight) of phosphorus (P)1.0-2.

Abstract: The present invention relates to copper-iron-nickel composite materials having utility in electronic applications because of their low coefficients of expansion and high thermal conductivities. Composite materials in accordance with the present invention consist essentially of about 10% to 80% copper and the balance iron plus nickel with the ratio of iron to nickel being in the range of from about 1.5:1 to about 2.0:1. Preferred composite materials have an iron to nickel ratio in the range of from about 1.6:1 to about 1.9:1.

Abstract: The improvement of strength and hardness of steel powders can be realized under good compressibility by alloying 0.2.about.2.0 wt. % of W and 0.8.about.3.0 wt. % of Ni, and further 0.1.about.1.0 wt. % of Mo or 0.2.about.2.0 wt. % of Cu in steel powder, and further the reduction of dimensional deviation introduced by heat treatment after sintering can also be achieved. This substantially eliminates damaging the shape and size of the sintered body after heat treatment.

Abstract: Corrosion resistance of stainless steel powder moldings is improved by combining the powder before molding with about 8 to 16% by weight of an additive consisting essentially of about 2 to 30% by weight of tin and 98 to 70% by weight of copper and/or nickel. Stainless steel moldings are prepared by compacting the powder at high pressure and heating to sintering temperature.

Abstract: Nitrogen-containing amorphous alloys having a combination of superior properties which are highly valuable and desirable for ferromagnetic materials or superconducting materials are produced by sputtering metallic materials and nitrogen compounds containing semi-metal or semiconducting metal, such as boron or silicon, without requiring the use of nitrogen gas. The produced alloy has a novel structure, represented by the formula:MxLyNz(wherein M is at least one metal or alloy; L is at least one semimetal or semiconducting element; and x, y and z are fractional atomic percentages totaling 100 (i.e., x+y+z=100) and the value of y+z being 10 or more and the respective values of x, y, z being not zero).

Abstract: This invention relates to a process for the preparation of purified bacterial membranal proteoglycans. The process comprises at least one step in which crude proteoglycans are treated in aqueous medium with a base or a hypobromite, followed by elimination of the excess reactant and the insoluble residue, the purified proteoglycans being present in aqueous solution. The thus obtained purified proteoglycans may be used as immunity adjuvants in vaccines without causing side-effects such as pyrogenic reactions.