Matches 1 - 50 out of 116 1 2 3 >


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US20140363696 HIGH-STRENGTH HOT ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME  
A high-strength hot rolled steel sheets with excellent stretch flangeability has small variations in mechanical properties in individual coils. Variations in strength from place to place in a coil...
US20110100516 Bake Hardening Steel with Excellent Surface Properties and Resistance to Secondary Work Embrittlement, and Preparation Method Thereof  
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...
US20150203946 Hot-Rolled Flat Steel Product and Method For the Production Thereof  
A hot-rolled flat steel product having a product of Rm and A80 of ≧18,000 MPa*%, a composition including (in wt.) C:0.10-0.60%, Si:0.4-2.0%, Al:≦2.0%, Mn:0.4-2.5%, Ni:≦1%, Cu:≦2.0%, Mo:≦0.4%,...
US20120279620 HIGH STRENGTH HOT-ROLLED STEEL PLATE EXHIBITING EXCELLENT ACID PICKLING PROPERTY, CHEMICAL CONVERSION PROCESSABILITY, FATIGUE PROPERTY, STRETCH FLANGEABILITY, AND RESISTANCE TO SURFACE DETERIORATION DURING MOLDING, AND HAVING ISOTROPIC STRENGTH AND DUCTILITY, AND METHOD FOR PRODUCING SAID HIGH STRENGTH HOT-ROLLED STEEL PLATE  
This high strength hot-rolled steel sheet includes: in terms of percent by mass, C: 0.05 to 0.12%; Si: 0.8 to 1.2%; Mn: 1.6 to 2.2%; Al: 0.30 to 0.6%; P: 0.05% or less; S: 0.005% or less; and N:...
US20130192725 HIGH STRENGTH STEEL SHEET HAVING EXCELLENT WARM STAMP FORMABILITY AND METHOD FOR MANUFACTURING THE SAME  
A high strength steel sheet excellent in warm stamp formability and a method for manufacturing the same. The steel has a composition containing, in terms of % by mass, C: 0.01 to 0.2%, Si: 0.5% or...
US20140216614 FERRITIC STAINLESS STEEL PLATE WHICH HAS EXCELLENT RIDGING RESISTANCE AND METHOD OF PRODUCTION OF SAME  
The present invention focuses on Sn and has as its problem to not only improve the corrosion resistance and rust resistance of Cr-containing ferritic stainless steel but also improve the ridging...
US20140251513 HIGH-STRENGTH HOT ROLLED STEEL SHEET WITH EXCELLENT BENDABILITY AND LOW-TEMPERATURE TOUGHNESS, AND METHOD FOR MANUFACTURING THE SAME  
A high-strength hot rolled steel sheet with excellent bendability and low-temperature toughness includes a chemical composition including, in mass %, C: 0.08 to 0.25%, Si: 0.01 to 1.0%, Mn: 0.8 to...
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...
US20140102600 Bainitic Steel of High Strength and High Elongation and Method to Manufacture Said Bainitic Steel  
The invention relates to a bainite steel consisting of the following elements in weight %: C: 0.25-0.55 Si: 0.5-1.8 Mn: 0.8-3.8 Cr: 0.2-2.0 Ti: 0.0-0.1 Cu: 0.0-1.2 V: 0.0-0.5 Nb: 0.0-0.06 Al:...
US20130199678 HIGH STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME  
A high strength hot-rolled steel sheet with a tensile strength of not less than 590 MPa which exhibits excellent bake hardenability and stretch-flangeability has a chemical composition including,...
US20090260729 HIGH-CARBON HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING THE SAME  
A high-carbon hot-rolled steel sheet with excellent width-direction homogeneity is provided. The steel sheet contains 0.2% to 0.7% carbon, 0.01% to 1.0% silicon, 0.1% to 1.0% manganese, 0.03% or...
US20140242416 HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING SAME  
A high strength pressed member has excellent ductility and stretch flangeability and tensile strength of 780-1400 MPa, with a predetermined steel composition and steel microstructure relative to...
US20130087254 HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT STRETCH-FLANGE FORMABILITY AND METHOD FOR MANUFACTURING THE SAME  
A high strength hot-rolled steel sheet has a composition containing more than 0.035% to 0.055% C, 0.2% or less Si, 0.35% or less Mn, 0.03% or less P, 0.03% or less S, 0.1% or less Al, 0.01% or...
US20110297281 HIGH STRENGTH HOT ROLLED STEEL SHEET EXCELLENT IN BORE EXPANDING WORKABILITY AND METHOD FOR PRODUCTION THEREOF  
A high-strength hot-rolled steel sheet containing C: 0.05 to 0.15%, Si: no more than 1.50% (excluding 0%), Mn: 0.5 to 2.5%, P: no more than 0.035% (excluding 0%), S: no more than 0.01% (including...
US20150159244 HIGH-STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING THE SAME  
Provided is a high-strength hot-rolled steel sheet containing, by mass %, C: 0.050 to 0.200%, Si: 0.01 to 1.5%, Mn: 1.0 to 3.0%, B: 0.0002 to 0.0030%, Ti: 0.03 to 0.20%, P: limited to 0.05% or...
US20140261915 LINE PIPE STEELS AND PROCESS OF MANUFACTURING  
A process for producing high strength steel is provided. The process includes providing a steel slab having a chemical composition in weight percent within a range of 0.025-0.07 C, 1.20-1.70 Mn,...
US20140000769 HOT ROLLED STEEL SHEET AND METHOD OF PRODUCING SAME  
A hot rolled steel sheet includes, as a chemical composition, at least one selected from Ti, REM, and Ca, and includes, as a metallographic structure, a ferrite as a primary phase, at least one of...
US20090202382 HIGH MANGANESE STEEL STRIPS WITH EXCELLENT COATABILITY AND SUPERIOR SURFACE PROPERTY, COATED STEEL STRIPS USING STEEL STRIPS AND METHOD FOR MANUFACTURING THE STEEL STRIPS  
A high-ductility, high-strength and high Mn steel strip used for steel strips of automobiles requiring superior formability and high strength, a plated steel strip produced by using the same, and...
US20130133790 HIGH TENSILE STRENGTH HOT ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY AND METHOD FOR MANUFACTURING THE SAME  
Described is a high tensile strength hot rolled steel sheet having high strength and formability, and a manufacturing method. It has tensile strength≧980 MPa and excellent formability, and...
US20140305550 HIGH STRENGTH HOT ROLLED STEEL SHEET AND METHOD FOR PRODUCING THE SAME  
A high strength hot rolled steel sheet has a matrix that has a ferrite phase with an area ratio of 95% or more with respect to an overall structure; and a structure where a fine carbide is...
US20140178712 HIGH YIELD RATIO HOT ROLLED STEEL SHEET WHICH HAS EXCELLENT LOW TEMPERATURE IMPACT ENERGY ABSORPTION AND HAZ SOFTENING RESISTANCE AND METHOD OF PRODUCTION OF SAME  
Hot rolled steel sheet which has a maximum tensile strength of 600 MPa or more and has an excellent low temperature impact energy absorption and HAZ softening resistance and a method of production...
US20150056468 HIGH STRENGTH STEEL SHEET AND METHOD OF MANUFACTURING THE SAME  
The high strength steel sheet has a chemical composition including 0.08% to 0.20% of C, 0.3% or less of Si, 0.1% to 3.0% of Mn, 0.10% or less of P, 0.030% or less of S, 0.10% or less of Al, 0.010%...
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,...
US20090050244 Hot-Rolled High Strength Steel Sheet Having Excellent Ductility, Stretch-Flangeability, and Tensile Fatigue Properties and Method for Producing the Same  
The present invention provides a hot-rolled high strength steel sheet in which, without using expensive Mo, by effectively using Ti which is an inexpensive element and the amount of precipitation...
US20070131320 High-strength steel sheets excellent in hole-expandability and ductility  
High-strength steel sheet excellent in hole-expandability and ductility, characterized by; comprising, in mass %, C: not less than 0.01% and not more than 0.20%, Si: not more than 1.5%, Al: not...
US20140238555 HIGH STRENGTH HOT ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME  
A high strength hot rolled steel sheet having a tensile strength of 780 MPa or more is produced by specifying the composition to contain C: more than 0.035% and 0.07% or less, Si: 0.3% or less,...
US20130206289 HIGH-STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY AND METHOD FOR MANUFACTURING THE SAME  
A high-strength hot-rolled steel sheet having excellent formability has a composition containing, by mass, 0.04% to 0.1% of C, 0.3% to 1.3% of Si, 0.8% to 1.8% of Mn, 0.03% or less of P, 0.005% or...
US20150240324 SILICON ALLOYED STEEL FOR HOT ROLLING  
A silicon alloyed steel for hot rolling and a process of hot rolling the silicon alloyed steel is provided. The process includes providing a steel slab having a chemical composition in weight...
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...
US20150030880 HIGH-STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME  
The present invention provides a high-strength hot-rolled steel sheet having both excellent strength and excellent workability (particularly, bending workability), and a method of producing the...
US20150101717 HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT DUCTILITY, STRETCH FLANGEABILITY AND UNIFORMITY AND METHOD OF MANUFACTURING THE SAME  
A slab has a steel composition including 0.020% to 0.065% of C, 0.1% or less of Si, 0.40% to less than 0.80% of Mn, 0.030% or less of P, 0.005% or less of S, 0.08% to 0.16% of Ti, 0.005% to 0.1%...
US20140190597 HOT COIL FOR LINE PIPE USE AND METHOD OF PRODUCTION OF SAME  
The present invention provides a hot coil for line pipe use which can reduce deviation in ordinary temperature strength and improve low temperature toughness despite the numerous restrictions in...
US20140295210 HIGH STRENGTH HOT ROLLED STEEL SHEET AND METHOD FOR PRODUCING THE SAME  
A hot rolled steel sheet includes a composition including: C: 0.03% to less than 0.07%; Si: 0.3% or less; Mn: 0.5% to 2.0%; P: 0.025% or less; S: 0.005% or less; N: 0.0060% or less; Al: 0.1% or...
US20060113012 High strength thin steel excellent in hole expansibility, ductility and chemical treatment characteristics, and method for production thereof  
High strength hot rolled steel sheet having at least a 590 N/mm2 tensile strength and excellent in elongation and ability of phosphate coating, that is, high strength hot rolled steel sheet...
US20140261914 METHOD OF PRODUCING HOT ROLLED HIGH STRENGTH DUAL PHASE STEELS USING ROOM TEMPERATURE WATER QUENCHING  
A process for manufacturing hot rolled high strength dual phase steels. In some instances, hot rolled strip is continuously cooled to less than 100° C. prior to coiling using a cooling rate...
US20110076177 HIGH-STRENGTH STEEL SHEET FOR CANS AND METHOD FOR MANUFACTURING THE SAME  
A steel sheet for cans that has a yield stress of at least 500 Mpa after coating and baking and a method for manufacturing the steel sheet for cans are provided. The steel sheet for cans contains,...
US20140332122 HIGH CARBON HOT ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME (AS AMENDED)  
A high carbon hot rolled steel sheet having a chemical composition containing by mass %, C: 0.20% to 0.48%, Si: 0.1% or less, Mn: 0.5% or less, P: 0.03% or less, S: 0.01% or less, Al: 0.1% to...
US20060081312 High strength steel sheet exhibiting good burring workability and excellent resistance to softening in heat-affected zone and method for production thereof  
The present invention provides high burring, high strength steel sheet excellent in softening resistance of the weld heat affected zone and a method of production of the same, that is, high...
US20090071575 HOT ROLLED DUAL PHASE STEEL SHEET, AND METHOD OF MAKING THE SAME  
A hot rolled steel sheet having a dual phase microstructure with a martensite phase of less than 35% by volume and a ferrite phase of more than 50% by volume and a composition containing by...
US20150184266 HOT-ROLLED STEEL SHEET, METHOD OF MANUFACTURING THE SAME, AND EQUIPMENT FOR MANUFACTURING THE SAME  
A method of manufacturing a hot-rolled steel sheet is explained. The method includes hot-rolling a slab, performing a first phase transformation process cooling a surface of the hot-rolled slab to...
US20090205756 HOT-ROLLED THIN STEEL SHEET WITH EXCELLENT FORMABILITY AND EXCELLENT STRENGTH AND TOUGHNESS AFTER HEAT TREATMENT, AND METHOD FOR MANUFACTURING THE SAME  
Provided is a hot-rolled thin steel sheet having a thickness of less than 6 mm and having high strength showing a tensile strength of 440 MPa or more, excellent formability, and excellent strength...
US20090071574 COLD ROLLED DUAL PHASE STEEL SHEET HAVING HIGH FORMABILITY AND METHOD OF MAKING THE SAME  
A steel sheet having (a) a dual phase microstructure with a martensite phase and a ferrite phase and (b) a composition containing by percent weight: 0.01≦C≦0.2; 0.3≦Mn≦3; 0.05≦Si≦2; 0.2≦Cr+Ni≦2;...
US20150218708 HOT ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME  
A hot rolled steel sheet consisting of, in mass %, C: 0.05% to 0.15%, Si: 0% to 0.2%, Al: 0.5% to 3.0%, Mn: 1.2% to 2.5%, P: 0.1% or less, S: 0.01% or less, N: 0.007% or less, Ti: 0.03% to 0.10%,...
US20140007993 HIGH STRENGTH HOT ROLLED STEEL SHEET HAVING EXCELLENT BLANKING WORKABILITY AND METHOD FOR MANUFACTURING THE SAME  
A high strength hot rolled steel sheet having excellent blanking workability is provided. The composition contains C: 0.050 to 0.15%, Si: 0.1 to 1.5%, Mn: 1.0 to 2.0%, P: 0.03% or less, S: 0.0030%...
US20130186526 HOT-ROLLED STEEL SHEET HAVING EXCELLENT COLD FORMABILITY AND HARDENABILITY AND METHOD FOR MANUFACTURING THE SAME  
Hot-rolled steel has a chemical composition containing, by mass%, C: 0.18% or more and 0.29% or less, N: 0.0050% or less, Ti: 0.002% or more and 0.05% or less, B: 0.0005% or more and 0.0050% or...
US20140352852 HOT ROLLED HIGH TENSILE STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING SAME  
The steel sheet has a chemical composition containing, by mass %, C: 0.04-0.08%, Si: 0.50% or less, Mn: 0.8-2.2%, P: 0.02% or less, S: 0.006% or less, Al: 0.1% or less, N: 0.008% or less, and Cr:...
US20110017360 HOT-ROLLED STEEL SHEET EXCELLENT IN FATIGUE PROPERTIES AND STRETCH-FLANGE FORMABILITY AND METHOD FOR MANUFACTURING THE SAME  
This hot-rolled steel sheet contains, in terms of mass%, C: 0.015% or more to less than 0.040%; Si: less than 0.05%; Mn: 0.9% or more to 1.8% or less; P: less than 0.02%; S: less than 0.01%; Al:...
US20090126836 High Carbon Hot Rolled Steel Sheet and method for manufacturing same  
A high carbon hot-rolled steel sheet, as a hot-rolled spheroidizing annealed material, having both excellent stretch-flange formability and excellent homogeneity of hardness in the sheet thickness...
US20130319583 HIGH-PURITY FERRITIC STAINLESS STEEL SHEET WITH EXCELLENT OXIDATION RESISTANCE AND HIGH-TEMPERATURE STRENGTH, AND PROCESS FOR PRODUCING THE SAME  
The present invention provides a low-alloy high-purity ferritic stainless steel sheet provided with improved oxidation resistance and high-temperature strength by utilizing Sn addition in trace...
US20130061989 HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT STRETCH FLANGEABILITY AND FATIGUE RESISTANCE AND METHOD FOR MANUFACTURING THE SAME  
A high strength hot-rolled steel sheet has a tensile strength of not less than 780 MPa and exhibits excellent stretch flangeability and excellent fatigue resistance. A steel has a composition...

Matches 1 - 50 out of 116 1 2 3 >