steel [Primetals Technologies, Ltd.]<br />Primetals Technologies wins order from Shougang Qian’an to supply 6-stand Hyper UC-mill for electrical steel By www.primetals.com Published On :: Tue, 21 Apr 2020 11:00:00 +0900 ・ The world’s first 6-stand tandem cold mill with Hyper UC-mills in all stands ・ Equipped with work roll shift function to enable precise edge profile control of electrical steels ・ Enables Shougang Qian’an to meet the growing demand for electrical steels Full Article
steel Steelhead Fishing in Pennsylvania By www.articlegeek.com Published On :: With the colder nights and that first frost brings forth the beginning of steelhead season in Pennsylvania. Full Article
steel KDM Steel Starts to Manufacture Freestanding Enclosure with Window for the European Market By www.24-7pressrelease.com Published On :: Wed, 03 Oct 2018 07:00:00 GMT KDM Steel today began manufacturing freestanding electrical enclosures with windows. Full Article
steel OPINION: America's Iron and Steel Industry Delivers Clean Water Worldwide By www.24-7pressrelease.com Published On :: Fri, 15 Mar 2019 07:00:00 GMT World Water Day and How America Contributes to It Full Article
steel HJSI Connector Grows Internationally With Saudi Arabian Sale of Stainless Steel Cable Glands & Liquidtight Connectors By www.24-7pressrelease.com Published On :: Tue, 02 Apr 2019 07:00:00 GMT As more companies learn of the high-quality, attractively metal cable glands and accessories from HJSI Connector the manufacturer's sales are being made into new countries. The latest breakthrough was a large order delivered to a client in Saudi Ara Full Article
steel Caster Concepts Offers a Huge Selection of Steel Swivel Casters for Any Application By www.24-7pressrelease.com Published On :: Wed, 25 Dec 2019 07:00:00 GMT Caster Concepts, a leading provider of industrial steel casters and caster wheels, offers numerous steel swivel casters for a wide variety of industries. Full Article
steel SteelCo Buildings Named General Contractor for HEGLA Production Site By www.24-7pressrelease.com Published On :: Sat, 31 Aug 2019 07:00:00 GMT Production Site is Located in Stockbridge, Henry County Georgia Full Article
steel SteelCo Buildings Named General Contractor for HEGLA Production Site By www.24-7pressrelease.com Published On :: Thu, 05 Sep 2019 07:00:00 GMT Production Site is Located in Stockbridge, Henry County Georgia Full Article
steel SteelCo Buildings Participates in STEM Extension Project By www.24-7pressrelease.com Published On :: Fri, 11 Oct 2019 07:00:00 GMT To provide STEM-based activities and curriculum for students in Newton County Full Article
steel Stocks in news: Indigo, Voda Idea and JSW Steel By economictimes.indiatimes.com Published On :: 2020-02-18T07:59:18+05:30 Stocks in news: Indigo, Voda Idea and JSW Steel Full Article
steel Realtors allege cartelization by cement, steel companies By economictimes.indiatimes.com Published On :: 2020-05-09T07:13:58+05:30 The Confederation of Real Estate Developers' Association of India (Credai) has written to minister for housing & urban affairs Hardeep Singh Puri, seeking urgent measures to control the hike in the prices of cement and steel amid the ongoing pandemic crisis. Full Article
steel Realtors body Credai reports 40-50% hike in cement, steel prices; alleges cartelisation By economictimes.indiatimes.com Published On :: 2020-05-09T16:36:11+05:30 Realtors' apex body Credai on Saturday said cement and steel rates have increased by 40-50 per cent in last few weeks despite the lockdown and alleged price cartelisation and unfair trade practices by the manufacturers. Full Article
steel Domestic steelmakers rely on exports as local demand slumps By economictimes.indiatimes.com Published On :: 2020-05-08T12:58:38+05:30 The likes of Tata Steel and Jindal Steel & Power are exporting 80-90% of their production, while JSW Steel is looking at shipping out somewhere around 20-30% of its output. Full Article
steel WMCG (Bounce 105.1)/Detroit Elevates J. Steele To APD By www.allaccess.com Published On :: Fri, 08 May 2020 11:44:14 -0700 BEASLEY MEDIA GROUP Rhythmic AC WMCG (BOUNCE 105.1)/DETROIT has promoted PM drive’s J. STEELE to APD. He will begin his new additional duties immediately. Dir./Programming JERRY … more Full Article
steel An Incredible Welded Steel AT-AT Walker BBQ Grill By feedproxy.google.com Published On :: Tue, 05 May 2020 12:38:42 +0000 Alex Dodson of Burned by Design has created an incredible hand-welded steel AT-AT Walker that features with a convenient BBQ... Full Article Design AT-AT bbq grill Star Wars walker
steel Flexsteel to close Dubuque plant, idling 200 By feedproxy.google.com Published On :: Fri, 08 May 2020 12:18:27 PDT An Eastern Iowa furniture manufacturer will permanently close two plants, laying off about 370 employees as it drops two lines of business. Flexsteel Industries will close a factory in Dubuque with... Full Article Business
steel Flexsteel to close Dubuque plant, idling 200 By feedproxy.google.com Published On :: Fri, 08 May 2020 12:18:27 PDT An Eastern Iowa furniture manufacturer will permanently close two plants, laying off about 370 employees as it drops two lines of business.Flexsteel Industries will close a factory in Dubuque with 200 employees that manufactures products for the recreational vehicle industry.The publicly traded company also will close a plant in Starkville, Miss., that produces products for the RV and hospitality industries and employs about 170 people.In a news release, Flexsteel said its decision to stop manufacturing RV and hospitality furniture was due to rapidly declining customer demand and changing market conditions resulting from the ongoing COVID-19 pandemic.Flexsteel said the two markets already had entered a cyclical decline before the effects of the pandemic occurred. “It has become clear that what was thought to be a short-term hit to these two already challenged businesses will now extend well into the future and will likely not return to pre-pandemic levels for some time,” said Jerry Dittmer, Flexsteel president and CEO. “This pandemic has been unforgiving to many companies, including ours. We find ourselves making these hard decisions as we attempt to navigate these uncharted business conditions.”The Dubuque and Starkville plants temporarily were shut down in late March due to sudden drops in demand as many of Flexsteel’s customers shut down in the wake of the pandemic.Dittmer said the company will be working with its work force, customers and suppliers to determine a feasible ramp-down plan. While it is anticipated that both facilities could close as early as June, the date may fluctuate sooner or later based on business conditions.Dittmer said the company will increase its focus on home furnishings, e-commerce and workspace solutions. Full Article Business
steel Compressed gas aerosol composition in steel can By www.freepatentsonline.com Published On :: Tue, 06 Jan 2015 08:00:00 EST An aqueous compressed gas aerosol formulation in combination with a lined steel can, which may also optionally be tin plated, to provide corrosion stability, fragrance stability and color stability. An aerosol formulation of particular advantage for use is an air and/or fabric treatment formulation. The combination provides a compatibility which allows for the ability to use a broader fragrance pallet for the air and/or fabric treatment formulation which is aqueous based in major proportion. The formulation includes, in addition to an aqueous carrier, a fragrance, nonionic surfactant(s) or a blend of nonionic surfactant(s) and cationic surfactant(s), a compressed gas propellant(s), pH adjuster(s), and corrosion inhibitor(s). The formulation has a pH of about 8 to less than 10. The corrosion inhibitor(s) is(are) mild in strength and used in a minor amount. Full Article
steel Compressed gas aerosol composition comprising a non-ionic surfactant in a steel can By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An aqueous compressed gas aerosol formulation in combination with a lined steel can, which may also optionally be tin plated, to provide corrosion stability, fragrance stability and color stability. An aerosol formulation of particular advantage for use is an air and/or fabric treatment formulation. The combination provides a compatibility which allows for the ability to use a broader fragrance pallet for the air and/or fabric treatment formulation which is aqueous based in major proportion. The formulation includes, in addition to an aqueous carrier, a fragrance, nonionic surfactant(s) or a blend of nonionic surfactant(s) and cationic surfactant(s), a compressed gas propellant(s), pH adjuster(s), and corrosion inhibitor(s). The formulation has a pH of about 8 to less than 10. The corrosion inhibitor(s) is (are) mild in strength and used in a minor amount. Full Article
steel Electronic synthesized steelpan drum By www.freepatentsonline.com Published On :: Tue, 18 Apr 2006 08:00:00 EDT An electronic synthesized steelpan drum resembling a conventional steelpan drum and featuring the same shallow cylindrical shape with a sunken concave playing surface. The steelpan drum includes a central processor chip and associated memory chips for providing a variety of synthesized steelpan and a full range of musical, orchestral, and symphonic instrumental sounds, including tenor, double-seconds, guitar, cello, quadraphonic, tenor-bass, and bass steel drums. The concave playing surface is comprised of a series of rubber striking pad areas, which can be arranged in a conventional or other unique pattern typical of a tenor pan. The striking pad areas will be played with a pair of pansticks. Attached under each pad is a pressure sensor, which will detect the amount of force applied when a pannist strikes a pad and provide a signal to the central processor for controlling the synthesized sound. The steelpan has various control functions including speakers, volume control, function selection buttons, and a control display panel. Full Article
steel Method for the production of a flat steel product and flat steel product By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A flat steel product having a base layer of a steel material and a multilayer coating applied thereto, and a method for producing the flat steel product. The method having the following steps: providing a steel base layer; applying a zinc layer to the base layer by electrolytic coating; applying an aluminum layer to the surface of the zinc layer, wherein no treatment is made to the surface of the zinc layer in regard to the oxides and sulfides present thereon at the end of the electrolytic zinc coating step or occurring during the course of the aluminum coating step; applying a magnesium layer to the aluminum layer; and subsequently heat treating the flat steel product in such a way that an MgZn2 layer forms in the coating above the Al layer. Full Article
steel Hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet, each having excellent workability, high yield ratio and high strength By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Disclosed is a hot-dip galvanized steel sheet or an alloyed hot-dip galvanized steel sheet, which has a tensile strength of 980 MPa or more, excellent workability, high yield ratio and high strength. The hot-dip galvanized steel sheet or the alloyed hot-dip galvanized steel sheet is characterized by containing 0.12-0.3% by mass of C, 0.1% by mass or less (excluding 0% by mass) of Si, 2.0-3.5% by mass of Mn, 0.05% by mass or less (excluding 0% by mass) of P, 0.05% by mass or less (excluding 0% by mass) of S, 0.005-0.1% by mass of Al and 0.015% by mass or less (excluding 0% by mass) of N, with the balance made up of iron and unavoidable impurities. The hot-dip galvanized steel sheet or the alloyed hot-dip galvanized steel sheet is also characterized in that the metallic structure thereof contains bainite as a matrix structure, and the area ratio of ferrite is 3-20% and the area ratio of martensite is 10-35% relative to the entire structure. Full Article
steel Zinc-plated steel sheet for hot pressing having outstanding surface characteristics, hot-pressed moulded parts obtained using the same, and a production method for the same By www.freepatentsonline.com Published On :: Tue, 30 Jun 2015 08:00:00 EDT Provided is a zinc-plated steel sheet for hot pressing having outstanding surface characteristics, comprising: a steel foundation plate comprising a metal surface diffusion layer of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr; an aluminum-rich layer containing at least 30 wt. % of aluminum formed on the surface diffusion layer, and a zinc plating layer formed on the aluminum-rich layer. In this way, a metal having a low affinity for oxygen is coated to an effective thickness prior to annealing and thus the creation of annealing oxides at the surface of the steel sheet is suppressed and a uniform zinc plating layer is formed, and alloying of the zinc plating layer is promoted during press-processing heat treatment. Cracking in the steel foundation plate during hot press molding is prevented. Full Article
steel Forging heat resistant steel, manufacturing method thereof, forged parts and manufacturing method thereof By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A forging heat resistant steel of an embodiment contains in percent by mass C: 0.05-0.2, Si: 0.01-0.1, Mn: 0.01-0.15, Ni: 0.05-1, Cr: 8 or more and less than 10, Mo: 0.05-1, V: 0.05-0.3, Co: 1-5, W: 1-2.2, N: 0.01 or more and less than 0.015, Nb: 0.01-0.15, B: 0.003-0.03, and a remainder comprising Fe and unavoidable impurities. Full Article
steel Steel compositions for special uses By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT The invention concerns steels having excellent resistance over time, in a corrosive atmosphere due to oxidizing environments such as, for example, fumes or water vapor, under high pressure and/or temperature. The invention concerns a steel composition for special applications, said composition containing, by weight, about 1.8 to 11% of chromium (and preferably between about 2.3 and 10% of chromium), less than 1% of silicon, and between 0.20 and 0.45% of manganese. It has been found that it is possible to adjust the contents of the composition based on a predetermined model, selected to obtain substantially optimal properties with respect to corrosion in specific conditions of high temperature performances. Said model can involve as additive of as residue at least one element selected among molybdenum, tungsten, cobalt, and nickel. Full Article
steel Bake hardening steel with excellent surface properties and resistance to secondary work embrittlement, and preparation method thereof By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Provided are a bake hardening steel having a crystalline grain size of ASTM No. 9 or more and a method for preparing the bake hardening steel by controlling the winding, rolling and cooling conditions. The bake hardening steel includes: C:0.0016˜0.0025%, Si:0.02% or less, P:0.01˜0.05%, S:0.01% or less, sol.Al:0.08˜0.12%, N:0.0025% or less, Ti:0.003% or less, Nb:0.003˜0.011%, Mo:0.01˜0.1%, B:0.0005˜0.0015% or less, balance Fe and other inevitable impurities, wherein % is weight %, and Mn and P satisfy the relation of −30(° C.)≧803P−24.4Mn−58. Full Article
steel System and method for measuring the thickness of a zinc layer on steel and for measuring the iron concentration in a zinc layer By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A Compton radiation detection device for determining of Compton radiation of iron, includes a sensor and a filter arrangement. The filter arrangement is adapted such that the radiation emitted by a test object due to Compton scattering passes a nickel layer and an iron layer before being detected by the sensor. A dispersive ionization chamber includes an ionization chamber having a plurality off ionization volumes and a window. Each ionization volume includes an electrode. Radiation can enter through the window. The ionization volumes are arranged in a beam propagation direction behind each other. Radiation having lower energy is statistically absorbed in ionization volumes located more proximal to the window. Radiation having higher energy is statistically absorbed in the ionization volumes located more distal from the window. Full Article
steel Method of making heat treated stainless steel needles By www.freepatentsonline.com Published On :: Tue, 02 May 1995 08:00:00 EDT Surgical needles are produced from martensitic precipitation-hardening stainless steel and then vacuum heat treated and vacuum cooled to increase its tensile strength while retaining the polished surface of the needle. A needle made by this process is also disclosed. Full Article
steel Method for steel pin manufacture By www.freepatentsonline.com Published On :: Tue, 22 Dec 1998 08:00:00 EST A steel pin is disclosed of a type to be forcibly driven into a steel substrate by using a powder-actuated tool. The steel pin has a substantially cylindrical shank and a substantially sharp point which extends from one end of the substantially cylindrical shank, which conforms substantially to a tangent or secant ogive except for a substantially spherical tip having a radius in a range of approximately 0.02 inch (approximately 5 millimeters) to approximately 0.03 inch (approximately 7.5 millimeters), which has substantially true concentricity, which has surface-texture irregularities with a roughness-height index value in a range from approximately 10 microinches (approximately 0.25 micrometers) to approximately 15 microinches (approximately 0.38 micrometers), and which appears to be substantially free of other surface imperfections when viewed under 60× magnification. The substantially cylindrical shank is joined to the substantially sharp point at a transition having a substantially smooth, continuously curved surface, and is knurled near the transition. The steel pin is made by deforming a length of steel wire as by forging or swaging, so as to form the steel pin with the substantially cylindrical shank and with the substantially sharp point, and reshaping the substantially pointed end as by barrel finishing the steel pin in a finishing medium. Full Article
steel Steel pin and method for its manufacture By www.freepatentsonline.com Published On :: Tue, 19 Jan 1999 08:00:00 EST A steel pin is disclosed of a type to be forcibly driven into a steel substrate by using a powder-actuated tool. The steel pin has a substantially cylindrical shank, and a substantially sharp point which extends from one end of the substantially cylindrical shank, which conforms substantially to a tangent or secant ogive except for a substantially spherical tip having a radius in the range of approximately 0.015 inch (approximately 3.75 millimeters) to approximately 0.03 inch (approximately 7.5 millimeters), which has substantially true concentricity, which has surface-texture irregularities with a roughness-height index value not greater than approximately 30 microinches (approximately 0.76 micrometers), and which appears to be substantially free of other surface imperfections when viewed under 60× magnification. Optimally, the ogive is a tangent ogive with an ogive radius approximately ten times the shank diameter and with an ogive length approximately twice the shank diameter, and the tip radius is approximately 0.1 times the shank diameter. The substantially cylindrical shank is joined to the substantially sharp point at a transition having a substantially smooth, continuously curved surface, and which is knurled near the transition. The steel pin is made by deforming a length of steel wire, as by forging or swaging, so as to form the steel pin. Full Article
steel Tension head for modular steel strapping machine By www.freepatentsonline.com Published On :: Tue, 22 Apr 2014 08:00:00 EDT A self-actuating tension head for a strapping machine includes a body defining a strap path, a drive wheel, a tension wheel a fixed distance from the drive wheel and a pinch wheel. The strap path extends between the tension and pinch wheels. A first link operably connects the drive and tension wheels and defines a first pivot arm that is pivotable about the drive wheel axis of rotation. A second link operably connects the tension and pinch wheels and defines a second pivot arm that is pivotable about the pinch wheel axis and movable along the second pivot arm to move the tension wheel into and out of engagement with the pinch wheel. The first and second pivot arms define an energizing angle therebetween that decreases as the tension wheel is moved into engagement with the pinch wheel and increases as the tension wheel is moved out of engagement with the pinch wheel. Full Article
steel Windable steel net reinforcement structure By www.freepatentsonline.com Published On :: Tue, 16 Sep 2014 08:00:00 EDT The present invention relates to a steel net reinforcement structure which is used for a conveyer belt or a shutter screen. The steel net reinforcement structure comprises: a steel net including hooks projecting from both sides thereof; a reinforcement including a slit cut open along a diagonal direction on both sides thereof; and a steel core which can lock the hooks which are inserted on both inner sides of the reinforcement. The steel net reinforcement structure can be wound conveniently and flexibly while reinforcing strength of the steel net. Full Article
steel Power tool for stainless steel metal locking ties By www.freepatentsonline.com Published On :: Tue, 20 Jan 2015 08:00:00 EST A power tool for installing a metal locking tie is disclosed. The power tool includes a body and a power chassis. The body of the tool includes a gear carrier, a tensioning mechanism and a cutting mechanism. The gear carrier is positioned in the tool body and the tensioning mechanism is mounted in the gear carrier. The cutting mechanism engages the gear carrier. As the tie is tensioned, the gear carrier moves linearly in the tool body to cut the tensioned tie. Full Article
steel Rubber compositions for bead apex, sidewall packing, base tread, breaker cushion, steel cord topping, strip adjacent to steel cords, tie gum, and sidewall, and pneumatic tires By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT The present invention provides a rubber composition that improves in terms of the fuel economy of a rubber composition containing an isoprene-based rubber and also offers favorable durability and favorable processability or adhesion to steel cords, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for a bead apex, sidewall packing, base tread, or breaker cushion, including: a specific rubber component; a specific amount of a specific carbon black; a specific amount of sulfur; and a specific amount of a compound represented by formula (I) below. The present invention also relates to a rubber composition for a steel cord topping, strip adjacent to steel cords, or tie gum, including: a specific rubber component; a specific amount of a specific carbon black; a specific amount of an organic acid cobalt salt; and a specific amount of a compound represented by the formula (I). Full Article
steel Rubber-steel hybrid cord and pneumatic radial tire (using the same) By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A rubber-steel hybrid cord of the present invention is characteristically formed by twisting a plurality of sheath filaments or sheath strands around a core in which a periphery of and space surrounded by one or a plurality of core filaments or a core strand are coated or filled with a filler rubber (A) containing an adhesion promoter, thereby forming a multilayer-twist steel cord or a multi-twist steel cord, and coating an outer surface of the multilayer-twist steel cord or the multi-twist steel cord with a coating rubber (C). Further, an amount of an adhesion promoter contained in the coating rubber (C) is equal to or more than an amount of the adhesion promoter contained in the filler rubber (A). Full Article
steel Process for producing pig iron or liquid primary steel products By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A process for producing pig iron or liquid primary steel products is provided. Charge materials containing iron ore and, if appropriate, additions are reduced in at least one reduction unit by means of a reducing gas, and at least parts thereof are smelted in a smelting unit, with coal being added and with formation of the reducing gas. Reducing gas from the smelting unit and/or top gas from the reduction unit are/is subjected to cleaning. The process water obtained during the wet cleaning is degassed and in the process volatile organic compounds are removed from the process water. Full Article
steel Process for recycling of steel industry iron bearing by-products, pellet obtained in that process and use thereof By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The present invention relates to a process for the recycling of steel industry iron bearing by-products into a shape suitable for feeding into a direct reduction furnace, comprising the steps of mixing and grinding 50 to 99 wt % of ore and pellet fines and 1 to 50 wt % of slurry, mill scale and/or bag house dust, pelletizing the mixture and indurating the pellets so obtained by heating for 5-60 minutes at a temperature in the range of 1100-1350° C.; and a pellet produced from Iron bearing waste material and having compression strength of at least 2.8 kN and/or a drop number of at least 3. Full Article
steel Additive for treating resulphurized steel By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A cored wire for introducing additive into a bath of liquid steel, of the type comprising a metal sheath surrounding said additive, characterized in that said additive predominantly comprises calcium silicate. A process for manufacturing a resulfurized steel, characterized in that it comprises a step of introducing, into the bath of liquid steel, such a cored wire. Full Article
steel System and method for reducing iron oxide to metallic iron using coke oven gas and oxygen steelmaking furnace gas By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Novel systems and methods are described for reducing iron oxide to metallic iron in an integrated steel mill or the like that has a coke oven and/or an oxygen steelmaking furnace. More specifically, the present invention relates to novel systems and methods for reducing iron oxide to metallic iron using coke oven gas (COG) or COG and basic oxygen furnace gas (BOFG). Full Article
steel Thin gauge steel sheet excellent in surface conditions, formability, and workability and method for producing the same By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT The present invention provides ultralow carbon thin gauge steel sheet and a method for producing the same where coalescence and growth of inclusions in the molten steel are prevented and the inclusions are finely dispersed in the steel sheet, whereby surface defects and cracks at the time of press forming are prevented, growth of recrystallized grains at the time of continuous annealing is promoted, and a high r value (r value≧2.0) and elongation (total elongation≧50%) are exhibited, that is, ultralow carbon thin gauge steel sheet excellent in surface conditions, formability, and workability comprised of, by mass %, 0.00030.003%≦C≦0.003%, Si≦0.01%, Mn≦0.1%, P≦0.02%, S≦0.01%, 0.0005%≦N≦0.0025%, 0.01%≦acid soluble Ti≦0.07%, acid soluble Al≦0.003%, and 0.002%≦La+Ce+Nd≦0.02% and a balance of iron and unavoidable impurities, said steel sheet characterized by containing at least cerium oxysulfite, lanthanum oxysulfite, and neodymium oxysulfite. Full Article
steel Method for producing seamless steel pipe for oil wells excellent in sulfide stress cracking resistance By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A high-strength seamless steel pipe for oil wells excellent in sulfide stress cracking resistance which comprises, on the percent by mass basis, C: 0.1 to 0.20%, Si: 0.05 to 1.0%, Mn: 0.05 to 1.0%, Cr: 0.05 to 1.5%, Mo: 0.05 to 1.0%, Al: 0.10% or less, Ti: 0.002 to 0.05% and B: 0.0003 to 0.005%, with a value of equation “C+(Mn/6)+(Cr/5)+(Mo/3)” of 0.43 or more, with the balance being Fe and impurities, and in the impurities P: 0.025% or less, S: 0.010% or less and N: 0.007% or less. The seamless steel pipe may contain a specified amount of one or more element(s) of V and Nb, and/or a specified amount of one or more element(s) of Ca, Mg and REM. The seamless steel pipe can be produced at a low cost by adapting an in-line tube making and heat treatment process having a high production efficiency since a reheating treatment for refinement of grains is not required. Full Article
steel Steel material superior in high temperature characteristics and toughness and method of production of same By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A steel material superior in high temperature characteristics and toughness is provided, that is, a steel material containing, by mass %, C: 0.005% to 0.03%, Si: 0.05% to 0.40%, Mn: 0.40% to 1.70%, Nb: 0.02% to 0.25%, Ti: 0.005% to 0.025%, N: 0.0008% to 0.0045%, B: 0.0003% to 0.0030%, restricting P: 0.030% or less, S: 0.020% or less, Al: 0.03% or less, and having a balance of Fe and unavoidable impurities, where the contents of C and Nb satisfy C—Nb/7.74≦0.02 and Ti-based oxides of a grain size of 0.05 to 10 μm are present in a density of 30 to 300/mm2. Full Article
steel Steel for heat treatment By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A steel for heat treatment, which exhibits high strength and high toughness even when the heat treatment (such as quenching and tempering) of the steel is conducted under conventional conditions in an after stage. The steel for heat treatment contains C: 0.10 to 0.70 mass %, Mn: 0.1 to 3.0 mass %, Al: 0.005 to 2.0 mass %, P: 0.050 mass % or less, S: 0.50 mass % or less, O: 0.0030 mass or less, N: 0.0200 mass % or less, and one or more selected from the group consisting of Ti: 0.30 mass % or less and Nb: 0.30 mass or less with the balance being Fe and unavoidable impurities, and has a TH value of 1.0 or above as calculated according to the formula: ({Ti}/48+{Nb}/93) 104 and grain diameters of 10 μm or below. {Ti} and {Nb} refer respectively to the contents of Ti and Nb in precipitates of 5 to 100 nm in size as determined about their respective extraction residues. Full Article
steel High Al-content steel sheet excellent in workability and method of production of same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The present invention provides a high Al-content steel sheet having an excellent workability and a method of production of the same at a low cost by mass production, a high Al-content metal foil and a method of production of the same, and a metal substrate using a high Al-content metal foil, that is, a high Al-content steel sheet having an Al content of 6.5 mass % to 10 mass %, the high Al-content steel sheet characterized by having one or both of a {222} plane integration of an α-Fe crystal with respect to the surface of the steel sheet of 60% to 95% or a {200} plane integration of 0.01% to 15% and a method of production of the same, a high Al-content metal foil and a method of production of the same, and a metal substrate using a high Al-content metal foil. Full Article
steel Method for manufacturing high strength galvanized steel sheet with excellent formability By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A method of manufacturing a high-strength galvanized steel sheet includes hot-rolling a slab to form a steel sheet; during continuous annealing, heating the steel sheet to a temperature of 750° C. to 900° C. at an average heating rate of at least 10° C./s at a temperature of 500° C. to an A1 transformation point; holding that temperature for at least 10 seconds; cooling the steel sheet from 750° C. to a temperature of (Ms point—100° C.) to (Ms point—200° C.) at an average cooling rate of at least 10° C./s; reheating the steel sheet to a temperature of 350° C. to 600° C.; holding that temperature for 10 to 600 seconds; and galvanizing the steel sheet. Full Article
steel Low nickel austenitic stainless steel By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Various embodiments of the invention provide a low nickel austenitic stainless steel alloy composition including about 0.6% to about 0.8% by weight carbon; about 16% to about 18% by weight chromium; about 4.5% to about 5.5% by weight nickel; about 2.0% to about 5.0% by weight manganese; about 0.8% to about 1.2% by weight tungsten; about 0.8% to about 1.2% by weight molybdenum; about 0.65% to about 0.85% by weight niobium; about 0.3% to about 1.0% by weight silicon; balance iron and unavoidable impurities, wherein percentages are based on the overall weight of the composition. The invention further provides articles, such as turbine housings, prepared using the inventive alloys. Full Article
steel Composite steel part and manufacturing method for the same By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A manufacturing method for a composite steel part including manufacturing a first steel part by preparing an intermediate product in which an extra portion is added, and heating the intermediate product to an austenitizing temperature in a carburizing atmosphere to form a carburized layer, cooling the intermediate product at a rate less than a cooling rate at which martensitic transformation is caused and in which the intermediate product is cooled to a temperature equal to or less than a temperature at which structure transformation due to the cooling is completed, heating the intermediate product to an austenitizing range by high-density energy and thereafter cooled at a rate equal to or more than the cooling rate at which martensitic transformation is caused to form a carburized quenched portion, cutting the extra portion of the intermediate product, and welding the first steel part and the second steel part to each other. Full Article
steel Steel sheet for cans with excellent surface properties after drawing and ironing and method for producing the same By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A component composition contains, by % by mass, 0.0016 to 0.01% of C, 0.05 to 0.60% of Mn, and 0.020 to 0.080% of Nb so that the C and Nb contents satisfy the expression, 0.4≦(Nb/C)×(12/93)≦2.5. In addition, the amount of Nb-based precipitates is 20 to 500 ppm by mass, the average grain diameter of the Nb-based precipitates is 10 to 100 nm, and the average crystal grain diameter of ferrite is 6 to 10 μm. Nb is added to ultra-low-carbon steel used as a base, and the amount and grain diameter of the Nb-based precipitates are controlled to optimize the pinning effect. Grain refinement of ferrite is achieved by specifying the Mn amount, thereby achieving softening and excellent resistance to surface roughness of steel. Full Article
steel Bearing steel being excellent both in workability after spheroidizing-annealing and in hydrogen fatigue resistance property after quenching and tempering By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Provided is bearing steel excellent in workability after spheroidizing-annealing and in hydrogen fatigue resistance property after quenching and tempering. The bearing steel has a chemical composition containing, by mass %: 0.85% to 1.10% C; 0.30% to 0.80% Si; 0.90% to 2.00% Mn; 0.025% or less P; 0.02% or less S; 0.05% or less Al; 1.8% to 2.5% Cr; 0.15% to 0.4% Mo; 0.0080% or less N; and 0.0020% or less O, which further contains more than 0.0015% to 0.0050% or less Sb, with the balance being Fe and incidental impurities, to thereby effectively suppress the generation of WEA even in environment where hydrogen penetrates into the steel, so as to improve the roiling contact fatigue life and also the workability such as cuttability and forgeability of the material. Full Article
steel Low alloy steel for geothermal power generation turbine rotor, and low alloy material for geothermal power generation turbine rotor and method for manufacturing the same By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A low alloy steel ingot contains from 0.15 to 0.30% of C, from 0.03 to 0.2% of Si, from 0.5 to 2.0% of Mn, from 0.1 to 1.3% of Ni, from 1.5 to 3.5% of Cr, from 0.1 to 1.0% of Mo, and more than 0.15 to 0.35% of V, and optionally Ni, with a balance being Fe and unavoidable impurities. Performing quality heat treatment including a quenching step and a tempering step to the low alloy steel ingot to obtain a material, which has a grain size number of from 3 to 7 and is free from pro-eutectoid ferrite in a metallographic structure thereof, and which has a tensile strength of from 760 to 860 MPa and a fracture appearance transition temperature of not higher than 40° C. Full Article