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US20130004787 SEAMLESS STEEL PIPE FOR STEAM INJECTION AND METHOD FOR MANUFACTURING THE SAME  
There is provided a steel pipe for steam injection having high yield stress even at 350° C. The seamless steel pipe for steam injection according to the present invention has a chemical...
US20060130945 Steel pipe for an airbag system and a method for its manufacture  
A high strength steel pipe for an airbag system has a steel composition comprising C: 0.05-0.20%, Si: 0.1-1.0%, P: at most 0.025%, S: at most 0.010%, Cr: 0.05-1.0%, Al: at most 0.10%, at least one...
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...
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...
US20120042992 METHOD FOR MANUFACTURING SEAMLESS PIPES  
A method for suppressing shock and storage cracking when manufacturing seamless steel pipes comprises hot piercing and hot rolling a billet consisting of, by mass percent controlled amounts of C,...
US20110253267 HIGH STRENGTH STEEL PIPE OF API X65 GRADE OR HIGHER AND MANUFACTURING METHOD THEREFOR  
A high-strength steel pipe having a strength of API X65 grade or higher consisting essentially of, by mass %, 0.02 to 0.08% of C, 0.01 to 0.5% of Si, 0.5 to 1.8% of Mn, 0.01% or less of P, 0.002%...
US20120118425 High-strength steel pipe and producing method thereof  
This high-strength steel pipe includes, by mass%, C: 0.02% to 0.09%, Mn: 0.4% to 2.5%, Cr: 0.1% to 1.0%, Ti: 0.005% to 0.03%, Nb: 0.005% to 0.3%, and a balance consisting of Fe and inevitable...
US20060219332 Manufacturing method of high strength, high toughness seamless steel pipe for linepipe  
A manufacturing method of high-strength, high-toughness seamless steel pipe for linepipe comprises: (1) hot piercing a billet, in which the carbon equivalent value Ceq defined by expression (a):...
US20080017284 Steel for oil well pipe excellent in sulfide stress cracking resistance and method for producing seamless steel pipe for oil well  
A steel for an oil well pipe, having high strength and excellent SSC resistance, consists of, by mass %, C: 0.30 to 0.60%, Si: 0.05 to 0.5%, Mn: 0.05 to 1.0%, Al: 0.005 to 0.10%, Cr+Mo: 1.5 to...
US20060219333 Manufacturing method of seamless steel pipe for mechanical structural parts  
The present invention provides a manufacturing method of seamless steel pipe for mechanical structural parts. According to this manufacturing method, production process is simplified and...
US20090114318 Seamless steel pipe for line pipe and a process for its manufacture  
A seamless steel pipe for line pipe having a high strength and good toughness and corrosion resistance even though having a thick wall has a chemical composition comprising, in mass percent, C:...
US20120125490 LOW YIELD RATIO DUAL PHASE STEEL LINEPIPE WITH SUPERIOR STRAIN AGING RESISTANCE  
A steel composition and method from making a dual phase steel therefrom. The dual phase steel may have carbon of about 0.05% by weight to about 0.12 wt %; niobium of about 0.005 wt % to about 0.03...
US20060243355 Stabilizer bar  
A tubular stabilizer bar for a vehicle suspension is formed from an as-quenched steel material that is not subjected to a tempering process, and which has a hardness of at least 40 Rockwell C. The...
US20130056115 AUTOMOBILE CHASSIS PART EXCELLENT IN LOW CYCLE FATIGUE CHARACTERISTICS AND METHOD OF PRODUCTION OF SAME  
An automobile chassis part which is excellent in low cycle fatigue characteristics, characterized by being formed by steel which contains, by mass %, C: 0.02 to 0.10%, Si: 0.05 to 1.0%, Mn: 0.3 to...
US20060070687 Method for producing seamless steel pipe for inflator of air bag  
The invention proposes a method for manufacturing a seamless steel pipe having high strength, high toughness, and high formability for an airbag. A method for manufacturing a seamless steel pipe...
US20070267110 Method for making high-strength steel pipe, and pipe made by that method  
A method is provided for manufacturing a high-strength, as-welded steel pipe product, with a minimum yield strength in excess of 80 ksi (552 MPa), suitable for use in oil and gas well casings,...
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...
US20100319814 BAINITIC STEELS WITH BORON  
Steel compositions contain micro-alloying additions of boron and titanium, with yield strength of at least 100 ksi (690 MPa), excellent toughness and good weldability. Boron additions are used to...
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...
US20060266448 Seamless steel pipe for oil wells excellent in sulfide stress cracking resistance and method for producing the same  
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...
US20060201592 High-strength steel pipe of API X65 grade or higher and manufacturing method therefor  
A high-strength steel pipe having a strength of API X65 grade or higher consisting essentially of, by mass %, 0.02 to 0.08% of C, 0.01 to 0.5% of Si, 0.5 to 1.8% of Mn, 0.01% or less of P, 0.002%...
US20090238714 Seamless Steel Tube for an Airbag Accumulator and Process for its Manufacture  
A seamless steel tube for an airbag accumulator which can be manufactured by heat treatment of normalizing without quenching and tempering and which has a tensile strength of at least 850 MPa and...
US20070144632 Steel for structural part of automobile and method for producing the same  
A steel having excellent formability, fatigue endurance after quenching, low temperature toughness, resistance for hydrogen embrittlement, and corrosion fatigue endurance. A method includes...
US20090218014 Method for Producing Duplex Stainless Steel Seamless Pipe  
The present invention is to provide a method for producing duplex stainless steel seamless pipe in which a duplex stainless steel billet can be inhibited from generating an oxide scale on the...
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:...
US20050006011 Use of a steel alloy for making tubes to produce compressed gas containers or for making formed structures in light weight steel construction  
A method of using a steel alloy, the steel alloy having a composition containing in mass %, 0.09-0.13% C, 0.10-0.50% Si, 1.10-1.80% Mn, max. 0.02% P, max. 0.02% S, 1.00-2.00% Cr, 0.20-0.60% Mo,...
US20080110533 High strength seamless steel pipe and its manufacturing method  
A non-heat treated seamless steel pipe comprising, by weight, C: 0.10 to 0.25%, Si: 0.05 to 1.00%, Mn: 0.50 to 2.50%, P: not more than 0.03%, S: not more than 0.05%, Cr: 0.40 to 1.50%, Mo: 0.05 to...
US20070251611 Method for producing martensitic stainless steel tubes  
Martensitic stainless steel tubes are produced by optimizing the chemical composition of steel for billets (C: 0.15-0.22%, Si: 0.1-1.0%, Mn: 0.10-1.00%, Cr: 12.00-14.00%, N: 0.01-0.05%, P: not...
US20090032150 Oil country tubular good for expansion in well and manufacturing method thereof  
An oil country tubular good for expansion according to the invention is expanded in a well. The oil country tubular good for expansion has a composition containing, in percentage by mass, 0.05% 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...
US20090000709 Method for producing high chromium seamless pipe or tube  
A billet containing, by mass %, 8.0 to 16.0% of Cr with a value represented by the formula of “Cr+4Si−(22C+0.5Mn+1.5Ni+30N)” of not more than 9.0%, wherein the symbols of the elements represent...
US20150041030 METHOD FOR PRODUCING HIGH-STRENGTH STEEL MATERIAL EXCELLENT IN SULFIDE STRESS CRACKING RESISTANCE  
A steel has a chemical composition consisting of, by mass percent, C: 0.15-0.65%, Si: 0.05-0.5%, Mn: 0.1-1.5%, Cr: 0.2-1.5%, Mo: 0.1-2.5%, Ti: 0.005-0.50%, Al: 0.001-0.50%, and optionally at least...
US20080283160 Bent pipe and a method for its manufacture  
A bent pipe corresponding to at least API X100 grade and having a base metal with high strength and toughness and a weld metal with high toughness is provided. A steel plate prepared by cooling...
US20090308502 PROCESS FOR OBTAINING A PIPE FOR SUPPLYING FUEL TO AN INTERNAL COMBUSTION ENGINE  
The present invention relates to a process for producing a pipe, particularly for supplying fuel to an engine, comprising the steps of: prearranging a pipe made of stainless steel (1),executing 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...
US20090277544 HIGH-TENSILE STRENGTH WELDED STEEL TUBE FOR STRUCTURAL PARTS OF AUTOMOBILES AND METHOD OF PRODUCING THE SAME  
A high-tensile strength welded steel tube has excellent formability and torsional fatigue endurance after being formed into cross-sectional shape and then stress-relief annealed. A steel material...
US20090301613 Low Yield Ratio Dual Phase Steel Linepipe with Superior Strain Aging Resistance  
A steel composition and method from making a dual phase steel therefrom. The dual phase steel may have carbon of about 0.05% by weight to about 0.12 wt %; niobium of about 0.005 wt % to about 0.03...
US20050183798 Hot-rolled steel sheet for high-strength electric-resistance welded pipe having sour-gas resistance and exellent weld toughness, and method for manufacturing the same  
A hot-rolled steel sheet for high-strength ERW pipes contains about 0.02% to about 0.06% C; about 0.05% to about 0.50% Si; about 0.5% to about 1.5% Mn; about 0.010% or less P; about 0.0010% or...
US20080226396 Seamless steel tube for use as a steel catenary riser in the touch down zone  
The present invention describes an upset SCR of novel low carbon chemical composition and microstructure as well as method of manufacturing the same, which achieves higher improvement in the...
US20090044883 METHOD OF MAKING A SEAMLESS HOT-FINISHED STEEL PIPE, AND DEVICE FOR CARRYING OUT THE METHOD  
In a method of making a seamless hot-finished steel pipe a billet heated to a shaping temperature is pierced by a first shaping to a thick-walled hollow ingot which subsequently undergoes a radial...
US20100068549 SEAMLESS PRECISION STEEL TUBES WITH IMPROVED ISOTROPIC TOUGHNESS AT LOW TEMPERATURE FOR HYDRAULIC CYLINDERS AND PROCESS FOR OBTAINING THE SAME  
Process for manufacturing seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders comprising the following steps; —(i) providing a steel having...
US20090120541 High-Strength Steel Plate, Method of Producing the Same, and High-Strength Steel Pipe  
The present invention provides a high-strength steel plate having excellent resistance to cutting crack, excellent Charpy absorbed energy, excellent DWTT properties, a low yield ratio, and a...
US20140352836 HIGH-STRENGTH SEAMLESS STEEL PIPE FOR OIL WELL USE HAVING EXCELLENT RESISTANCE TO SULFIDE STRESS CRACKING  
A seamless steel pipe has a composition containing, by mass %, C: 0.15 to 0.50%, Si: 0.1 to 1.0%, Mn: 0.3 to 1.0%, P: 0.015% or less, S: 0.005% or less, Al: 0.01 to 0.1%, N: 0.01% or less, Cr: 0.1...
US20120205016 STEEL TUBE FOR AIRBAGS AND A PROCESS FOR MANUFACTURING SAME  
A steel tube for an airbag which has a low alloy cost and a strength of at least 1000 MPa and vTrs100 of −80° C. or below and a process for its manufacture which can minimize the number of times...
US20100119860 STEEL PIPE EXCELLENT IN DEFORMATION CHARACTERISTICS AND METHOD OF PRODUCING THE SAME  
The invention provides a steel pipe excellent in deformation characteristics, most notably a steel pipe for expandable-pipe oil well and a low-yield-ratio line pipe, and a method of producing the...
US20110209802 METHOD FOR PROCESSING STEEL TUBES AND THE LIKES  
A method for processing a steel tube includes the following steps: a softening step, in which a tube-to-be-processed is heated so that material property of the tube-to-be-processed is softened; a...
US20080026241 STEEL TUBING WITH ENHANCED SLOT-ABILITY CHARACTERISTICS FOR WARM TEMPERATURE SERVICE IN CASING LINER APPLICATIONS AND METHOD OF MANUFACTURING THE SAME  
A post-yield hardened steel tube, particularly useful for creating slotted liners, for use in various applications in the oil and gas industries. The steel specifications meet the broad API 5CT...
US20120267014 METHOD FOR MANUFACTURING SEAMLESS STEEL PIPE FOR LINE PIPE AND SEAMLESS STEEL PIPE FOR LINE PIPE  
There is provided a method for manufacturing a seamless steel pipe for line pipe, capable of improving the toughness of the seamless steel pipe for line pipe. A round billet having a chemical...

Matches 1 - 50 out of 65 1 2 >