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US20080257459 Seamless steel pipe and manufacturing method thereof  
The present invention relates to the following seamless steel pipes excellent in strength, toughness and weldability, particularly suitable for submarine flow lines, and a manufacturing method...
US20150059912 HIGH STRENGTH STEEL PLATE HAVING LOW YIELD RATIO EXCELLENT IN TERMS OF STRAIN AGEING RESISTANCE, METHOD OF MANUFACTURING THE SAME AND HIGH STRENGTH WELDED STEEL PIPE MADE OF THE SAME  
A steel plate has a chemical composition containing, by mass %, C: 0.03% or more and 0.08% or less, Si: 0.01% or more and 1.0% or less, Mn: 1.2% or more and 3.0% or less, P: 0.015% or less, S:...
US20120211131 HIGH STRENGTH STEEL HAVING GOOD TOUGHNESS  
Embodiments of the present disclosure comprise carbon steels and methods of manufacture. In one embodiment, quenching and tempering procedure is performed in which a selected steel composition is...
US20120211132 ULTRA HIGH STRENGTH STEEL HAVING GOOD TOUGHNESS  
Embodiments of the present disclosure comprise carbon steels and methods of manufacture. In one embodiment, a double austenizing procedure is disclosed in which a selected steel composition is...
US20100294401 HIGH STRENGTH BAINITIC STEEL FOR OCTG APPLICATIONS  
A high strength bainitic steel and a process for producing seamless pipes for OCTG applications are described. In particular, the advantages ensuing to the steel of the invention are the...
US20150252457 METHOD FOR PRODUCING MOLTEN STEEL HAVING HIGH WEAR RESISTANCE AND STEEL HAVING SAID CHARACTERISTICS  
The invention refers to a method for producing a molten steel having high wear resistance having a mainly bainitic microstructure and a suitable balance of tensile strength and hardness for pieces...
US20110108169 STEEL WITH HIGH PROPERTIES FOR SOLID PARTS  
High-strength steel of which the chemical composition comprises, by weight: 0.03%≦C<0.2%Si≦0.49%3%
US20130048158 SPRING STEEL AND METHOD FOR MANUFACTURING THE SAME  
Disclosed is high strength spring steel that can limit the depth of pitting occurring when corroded and therefore possesses high strength as well as excellent pitting corrosion resistance and...
US20110315277 STEEL ALLOY FOR A LOW-ALLOY STEEL FOR PRODUCING HIGH-STRENGTH SEAMLESS STEEL TUBING  
The invention relates to a steel alloy for a low alloy steel for producing high-tensile, weldable, hot-rolled seamless steel tubing, in particular construction tubing. The chemical composition (in...
US20140230969 TRIP-AIDED DUAL-PHASE MARTENSITIC STEEL AND ULTRAHIGH-STRENGTH-STEEL PROCESSED PRODUCT USING SAME  
Provided is a TRIP-aided dual-phase martensitic steel which is excellent in terms of strength-elongation balance and Charpy impact value and has dual-phase martensite composed of a soft lath...
US20140124102 ULTRAHIGH-STRENGTH WEAR-RESISTANT STEEL PLATE AND METHOD OF MANUFACTURING THE SAME  
The present invention provides a high-strength wear-resistant steel plate with Brinell hardness of ≧HB420, comprising the following chemical compositions (by weight %) C: 0.205-0.25%, Si:...
US20080302501 Steel for Hot Tooling, and Part Produced From Said Steel, Method for the Production Thereof, and Uses of the Same  
The invention relates to steel for hot tooling, the composition of said steel being made up of the following weight percentages: 0.30%=C=0.39%, 4.00%=Cr=6.00%, traces=Si=0.50%, traces=Mn=0.80%,...
US20110239835 STEEL FOR MACHINE STRUCTURE USE EXCELLENT IN CUTTING TOOL LIFETIME AND MACHINING METHOD OF SAME  
Steel for machine structure use excellent in tool lifetime in a broad range of cutting speeds regardless of continuous machining, intermittent machining, or other systems and further in various...
US20140116578 HIGH-STRENGTH HIGH-TOUGHNESS STEEL PLATE WITH YIELD STRENGTH OF 700MPA AND METHOD OF MANUFACTURING THE SAME  
The present invention relates to a high-strength high-toughness steel plate and a method of manufacturing the steel plate. The steel plate contains the following chemical compositions, by weight,...
US20120180912 HIGH STRENGTH AND HIGH TOUGHNESS CAST STEEL MATERIAL AND METHOD FOR PRODUCING THE SAME  
A high strength and high toughness cast steel material of the invention has a composition comprising 0.10 to 0.20% by mass of C, 0.10 to 0.50% by mass of Si, 0.40 to 1.20% by mass of Mn, 2.00 to...
US20120144989 HIGH BALLISTIC STRENGTH MARTENSITIC ARMOUR STEEL ALLOY  
The invention relates to an air hardenable high-hardness steel for armouring applications, such as armour plate for use in light armoured vehicles and body armour, and having a high level of...
US20120080124 ALLOY STEEL  
The invention provides an alloy steel having the following composition: Ni 5-14 wt %; Cr 4-16 wt %; Co 7-14 wt %; Mo 1-5 wt %; W 0-5 wt %; Ti 0-0.8 wt %; Al 0.1-3 wt %; the balance being Fe save...
US20090032149 HIGH-STRENGTH STEEL TUBE AND HEAT TREATMENT METHOD OF HEAT-TREATING THE SAME  
A heat treatment method of heat-treating a steel tube provides the steel tube with satisfactory workability and high pressure resistance capable of coping with a recent increasing trend of...
US20110247733 SEAMLESS STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME  
A seamless steel pipe of a low-alloy steel consisting, by mass %, of C: 0.10 to 0.20%, Si: 0.05 to 1.0%, Mn: 0.05 to 1.2%, Ni: 0.02 to 1.5%, Cr: 0.50 to 1.50%, Mo: 0.50 to 1.50%, Nb: 0.002 to...
US20080314481 High-Strength Steel for Seamless, Weldable Steel Pipes  
A low-alloy steel containing, by weight percent, C 0.03-0.13%, Mn 0.90-1.80%, Si≦0.40%, P≦0.020%, S≦0.005%, Ni 0.10-1.00%, Cr 0.20-1.20%, Mo 0.15-0.80%, Ca≦0.040%, V≦0.10%, Nb≦0.040%, Ti≦0.020%...
US20080047635 Heavy wall seamless steel pipe for line pipe and a manufacturing method thereof  
A heavy wall seamless steel pipe for line pipe with a high strength and increased toughness, which has a chemical composition, by mass %, that consists of C: 0.03 to 0.08%, Si: not more than...
US20140299237 METHOD FOR MANUFACTURING A HIGH-STRENGTH STRUCTURAL STEEL AND A HIGH-STRENGTH STRUCTURAL STEEL PRODUCT  
The invention relates to a method for manufacturing a high-strength structural steel and to a high-strength structural steel product. The method comprises a providing step for providing a steel...
US20110209803 High-Strength Steel Machined Product and Method for Manufacturing the Same, and Method for Manufacturing Diesel Engine Fuel Injection Pipe and Common Rail  
A high-strength steel machined product giving excellent hardenability has a metal microstructure with excellent balance of strength and toughness and high stability of retained austenite. The...
US20100024926 HIGH TENSILE STRENGTH STEEL HAVING FAVORABLE DELAYED FRACTURE RESISTANCE AND METHOD FOR MANUFACTURING THE SAME  
High tensile strength steels that have both favorable delayed fracture resistance and a tensile strength of 600 MPa or higher and are suitably used in construction machinery, tanks, penstocks, and...
US20110126946 BAINITE STEEL AND METHODS OF MANUFACTURE THEREOF  
Super Bainite Steel is described comprising between 90% and 50% bainite, the rest being austenite, in which excess carbon remains within the bainitic ferrite at a concentration beyond that...
US20130186521 PROFILED STEEL WIRE WITH HIGH MECHANICAL CHARACTERISTICS RESISTANT TO HYDROGEN EMBRITTLEMENT  
This profiled wire, of NACE grade, made of low-alloy carbon steel intended to be used in the offshore oil exploitation sector, is characterized in that it has the following chemical composition,...
US20140144556 STEEL PLATE WITH LOW YIELD-TENSILE RATIO AND HIGH TOUGHNESS AND METHOD OF MANUFACTURING THE SAME  
A steel plate with a low yield ratio and high toughness. The steel plate comprises components of, by weight: C (0.05-0.08%), Si (0.15-0.30%), Mn (1.55-1.85%), P (less than or equal to 0.015%), S...
US20150247224 TiC-PARTICLE-REINFORCED HIGH STRENGTH AND LOW DENSITY STEEL PRODUCTS WITH IMPROVED E-MODULUS AND METHOD FOR PRODUCING SAID PRODUCT  
A steel product simultaneously combining a high elastic modulus E, low density and high strength and to a method to produce the steel.
US20130098514 Ni-ADDED STEEL PLATE AND METHOD OF MANUFACTURING THE SAME  
A Ni-added steel plate contains, by mass %, C: 0.03% to 0.10%, Si: 0.02% to 0.40%, Mn: 0.3% to 1.2%, Ni: 5.0% to 7.5%, Cr: 0.4% to 1.5%, Mo: 0.02% to 0.4%, Al: 0.01% to 0.08%, T•O: 0.0001% to...
US20130098513 ULTRA-HIGH-STRENGTH STEEL BAR AND METHOD FOR MANUFACTURING SAME  
This invention relates to an ultra-high-strength steel bar and to a method of manufacturing the same, in which the steel bar includes C: 0.05 to 0.45 wt %, Si: 0.10 to 0.35 wt %, Mn: 0.1 to 0.85...
US20150083282 SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING THE SAME  
There is provided a seamless steel pipe having high strength and high toughness even if having a thick wall. A seamless steel pipe according to the present embodiment consists of: in mass %, C:...
US20080295920 High Tension Steel Plate with Small Acoustic Anisotropy and with Excellent Weldability and Method of Production of Same  
The present invention provides a high tension steel plate of a tensile strength of 570 MPa or more with a small acoustic anisotropy and with excellent weldability tensile strength and a method of...
US20100116381 INTERNAL HIGH HARDNESS TYPE PEARLITIC RAIL WITH EXCELLENT WEAR RESISTANCE AND ROLLING CONTACT FATIGUE RESISTANCE AND METHOD FOR PRODUCING SAME  
An internal high hardness type pearlitic rail that has a composition containing 0.73% to 0.85% by mass C, 0.5% to 0.75% by mass Si, 0.3% to 1.0% by mass Mn, 0.035% by mass or less P, 0.0005% to...
US20100037992 METHOD FOR TRANSFORMING STEEL BLANKS  
The invention relates to a method for transforming steel blanks. The invention in particular relates to a method for transforming a steel blank comprising kneading in order to obtain very good...
US20110000587 STEEL, PROCESS FOR THE MANUFACTURE OF A STEEL BLANK AND PROCESS FOR THE MANUFACTURE OF A COMPONENT OF THE STEEL  
Steel is described having a chemical composition, in weight-%, of 0.3 to 0.5% carbon (C), from traces to a max. of 1.5% silicon (Si), 0.2 to 1.5% manganese (Mn), 0.01 to 0.2% sulfur (S), 1.5 to 4%...
US20140290807 LOW-YIELD-RATIO HIGH-STRENGTH HOT-ROLLED STEEL PLATE WITH EXCELLENT LOW-TEMPERATURE TOUGHNESS AND PROCESS FOR PRODUCING SAME  
A low yield ratio and high-strength hot rolled steel sheet having a composition containing, on a mass percent basis, 0.03% to 0.10% C, 0.10% to 0.50% Si, 1.4% to 2.2% Mn, 0.005 % to 0.10% Al,...
US20090183802 FORGING STEEL, AND FORGED PRODUCTS OBTAINABLE THEREFROM  
Disclosed is a forging steel characterized in that prescribed composition of components must be satisfied. In particular, any one of the below-mentioned (I)-(IV) need be complied with in regard to...
US20100132855 FIRE-RESISTANT STEEL SUPERIOR IN WELD JOINT REHEAT EMBRITTLEMENT RESISTANCE AND TOUGHNESS AND METHOD OF PRODUCTION OF SAME  
The present invention provides high temperature strength and fire-resistant steel superior in weld joint reheat embrittlement resistance and toughness which is produced using steel of a room...
US20090236015 ULTRAHIGH STRENGTH STEEL SHEET AND STRENGTH PART FOR AUTOMOBILE UTILIZING THE SAME  
There is provided an ultrahigh strength steel sheet containing 0.10 to 0.40 mass % of C, 0.01 to 3.5 mass % of Cr, at least one selected from the group consisting of 0.10 to 2.0 mass % of Mo, 0.20...
US20120230859 MARAGING STEEL ARTICLE AND METHOD OF MANUFACTURE  
A fully dense, powder-metallurgy produced maraging steel alloy article of prealloyed powder for use as a tool for high temperature applications. The article in the as-produced condition having a...
US20080216928 Seamless steel pipe for line pipe and a method for its manufacture  
A seamless steel pipe for line pipe having high strength and stable toughness and having resistance to sulfide corrosion cracking at low temperatures to room temperature is provided. A seamless...
US20140299236 HIGH STRENGTH MEDIUM WALL QUENCHED AND TEMPERED SEAMLESS STEEL PIPES AND RELATED METHOD FOR MANUFACTURING SAID STEEL PIPES  
Disclosed herein are embodiments of a seamless quenched and tempered steel pipe which can have a wall thickness WT higher than or equal to 6 mm and lower than or equal to 35 mm. Some embodiments...
US20080145264 Mo-V-Ni high temperature steels, articles made therefrom and method of making  
Low carbon carburizing (surface hardening) and higher carbon through hardening steels primarily containing molybdenum, vanadium and nickel and, to a lesser amount, chromium used for rolling...
US20080302450 Object Comprising a Steel Part of Metal Construction Consisting of an Area Welded by a High Power Density Beam and Exhibiting an Excellent Toughness in a Molten Area, Method for Producing Said Object  
The invention discloses an object comprising at least one part made of steel, the composition of which comprises, the contents being expressed by weight, carbon with a content of between 0.005 and...
US20130174941 High-Strength Steel Material Having Outstanding Ultra-Low-Temperature Toughness and a Production Method Therefor  
The present invention provides steel containing manganese and nickel that is used as a structural material for a cryogenic storage container for liquefied natural gas (LNG) or the like, and a...
US20130248060 STRAIN AGING HARDENING TYPE STEEL SHEET EXCELLENT IN AGING RESISTANCE, AND MANUFACTURING METHOD THEREOF  
A strain aging hardening type steel sheet excellent in aging resistance, and manufacturing method thereof, said steel sheet comprises: in mass %, C: 0.0010 to 0.010%; Si: 0.005 to 1.0%; Mn: 0.08...
US20070107808 Steel for production of high-strength components with excellent low-temperature toughness and uses of a steel of this type  
The invention provides a high-strength steel that has excellent ductile fracture values J integral even at low temperatures, so the risk of the component, which is produced in each case from the...
US20130228253 HIGH TOUGHNESS SECONDARY HARDENING STEEL  
A secondary hardening steel alloy substantially lacking Cobalt is disclosed. In spite of the substantial lack of Cobalt, a steel alloy of the present disclosure has a low Stage II crack growth,...
US20100193089 HOT-WORKING TOOL STEEL HAVING EXCELLENT TOUGHNESS AND HIGH-TEMPERATURE STRENGTH AND METHOD FOR PRODUCTION THEREOF  
Disclosed is a hot-working tool steel having improved toughness and high-temperature strength. Also disclosed is a method for producing the hot-working tool steel. The hot-working tool steel...
US20130255844 PRIMARY MATERIAL FOR MOLDS ADAPTED TO MOLD PLASTICS  
A mold material having a material hardness higher than 340 HB and a fine-grain structure. The mold material having a composition in weight percent that includes:...

Matches 1 - 50 out of 88 1 2 >