Class / Patent application number | Description | Number of patent applications / Date published |
148332000 | Copper containing | 13 |
20080251160 | High-Strength Cold-Rolled Steel Sheet Excellent in Uniform Elongation and Method for Manufacturing Same - A high-strength cold-rolled steel sheet excellent in uniform elongation, including in percent by mass:
| 10-16-2008 |
20080257456 | Method for the Production of a Siderurgical Product Made of Carbon Steel with a High Copper Content, and Siderurgical Product Obtained According to Said Method - The invention relates to a method for producing a siderurgical product made of carbon steel having a high copper content, according to which:—a liquid steel having the composition: 0.0005% 1%; 0.5 Cu 10%; 0 Mn 2%; 0 Si 5% 0 Ti 0.5%; 0 Nb 0.5%; 0 Ni 5%; 0 Al 2%, the remainder being iron and impurities, is produced;—said liquid steel is poured directly in the form of a thin strip having a thickness of no more than 10 mm;—the strip is subjected to forced cooling and/or is surrounded by a non-oxidizing atmosphere while having a temperature of more than 1000? C;—said thin strip is hot rolled at a reduction rate of at least 10%, the temperature at the end of the rolling process being such that all of the copper is still in a solid solution in the ferrite and/or austenite matrix;—and the strip is coiled. The invention also relates to a siderurgical product obtained according to said method. | 10-23-2008 |
20080264525 | HIGH COPPER LOW ALLOY STEEL SHEET - A high copper low alloy steel sheet less than 5 mm is made by preparing a molten melt producing an as-cast low alloy steel comprising by weight, 0.02 % to 0.3% carbon, 0.10% to 1.5% manganese, 0.01% to 0.5% silicon, greater than 0.01 % and less than or equal 0.15% phosphorus, less than 0.05% aluminum, more than 0.20% copper, less than 0.03 % tin, less than 0.10 % nickel, total oxygen level at least 70 ppm and usually less than 250 ppm, free oxygen content 20 to 70 ppm, the remainder iron and impurities, solidifying the melt into sheet less than 10 mm thickness in a non-oxidizing atmosphere to below 1080° C. Copper content may be between 0.2% and 2.0% by weight. The steel may have a corrosion index (I) of at least 6.0 in accordance with ASTM G101 where: I=26.01 (% Cu)+3.88 (% Ni)+1.20 (% Cr)+1.49 (% Si)+17.28 (% P)−7.29 (% Cu)(% Ni)−9.10 (% Ni)(% P)−33.39 (% Cu) | 10-30-2008 |
20090101242 | LOW CARBON ALLOY STEEL TUBE HAVING ULTRA HIGH STRENGTH AND EXCELLENT TOUGHNESS AT LOW TEMPERATURE AND METHOD OF MANUFACTURING THE SAME - A low carbon alloy steel tube and a method of manufacturing the same, especially for a stored gas inflator pressure vessel, in which the steel tube consists essentially of, by weight: about 0.06% to about 0.18% carbon, about 0.3% to about 1.5% manganese, about 0.05% to about 0.5% silicon, up to about 0.015% sulfur, up to about 0.025% phosphorous, and at least one of the following elements: up to about 0.30% vanadium, upto t about 0.10% aluminum, up to about 0.06% niobium, up to about 1% chromium, up to about 0.70 % nickel, up to about 0.70% molybdenum, up to about 0.35% copper, up to about 0.15% residual elements, and the balance iron and incidental impurities. After a high heating rate of about 100° C. per second; rapidly and fully quenching the steel tubing in a water-based quenching solution at a cooling rate of about 100° C. per second. The steel has a tensile strength of at least about 145 ksi and as high as 220 ksi and exhibits ductile behavior at temperatures as low as −100° C. | 04-23-2009 |
20090173413 | Grain-Oriented Electrical Steel Sheet Superior in Core Loss Characteristic - Grain-oriented electrical steel sheet superior in core loss characteristic containing Si: 0.8 to 7 mass % and having a secondary recrystallized texture with a {110}<001> orientation as the main orientation, characterized in that average deviation angles α, β, and γ from the {110}<001> ideal orientation of the secondary recrystallized texture satisfy (α | 07-09-2009 |
20090183802 | 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 dissolved Ca and dissolved Mg. (I) Dissolved Ca: 2-500 ppb (meaning “mass ppb” hereafter) and dissolved Mg: 0.04-5 ppm (meaning “mass ppm” hereafter); (II) Dissolved Ca: 2-100 ppb and dissolved Mg: 5-ppm; (III) Dissolved Ca: 2 ppb or less (0% not included) and dissolved Mg: 0.04-5 ppm; (IV) Dissolved Ca: 2-500 ppb and dissolved Mg: 0.04 ppm or less (0% not included). | 07-23-2009 |
20090236015 | 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 to 1.5 mass % of W, 0.002 to 1.0 mass % of V, 0.002 to 1.0 mass % of Ti and 0.005 to 1.0 mass % of Nb, 0.02 mass % or less of P and 0.01 mass % or less of S as impurities and the balance being Fe and unavoidable impurities based on the total mass of the steel sheet and having a base structure of lower bainite, a prior austenite grain size of 30 μm or smaller and a tensile strength of 980 MPa or higher. There is also provided an automotive strength part using the ultrahigh strength steel sheet. | 09-24-2009 |
20100018613 | High Strength, High Toughness Steel Alloy - A high strength, high toughness steel alloy is disclosed. The alloy has the following broad weight percent composition. | 01-28-2010 |
20100252147 | HIGH-STRENGTH COLD-ROLLED STEEL SHEET - The invention provides a high-strength cold-rolled steel sheet which is improved in elongation and stretch-flangeability and exhibits more excellent formability. The high-strength cold-rolled steel sheet has a composition which contains by mass C: 0.03 to 0.30%, Si: 0.1 to 3.0%, Mn: 0.1 to 5.0%, P: 0.1% or below, S: 0.005% or below, N: 0.01% or below, and Al: 0.01 to 1.00% with the balance consisting of iron and unavoidable impurities. The high-strength cold-rolled steel sheet has a structure which comprises at least 40% (up to 100% inclusive) in terms of area fraction of tempered martensite having a hardness of 300 to 380 Hv and the balance ferrite. The cementite particles in the tempered martensite take such dispersion that 10 or more cementite particles having equivalent-circle diameters of 0.02 to less than 0.1 μm are present per one μm | 10-07-2010 |
20110259478 | HIGH-STRENGTH, LOW-ALLOY STEEL FOR SEAMLESS PIPES WITH OUTSTANDING WELDABILITY AND CORROSION RESISTANCE - A high-strength steel and a high-strength, weldable steel pipe. The invention relates to a high-strength steel and to a high-strength, weldable steel pipe. The high-strength, low-alloy steel for seamless steel pipes with outstanding weldability and resistance to stress corrosion cracking with a minimum yield strength of 620 MPa and a tensile strength of at least 690 MPa is characterized by the composition indicated in claim | 10-27-2011 |
20130037176 | High Strength, High Toughness Steel Alloy - A high strength, high toughness steel alloy is disclosed. The alloy has the following weight percent composition. | 02-14-2013 |
20130146182 | High Strength, High Toughness Steel Alloy - A high strength, high toughness steel alloy is disclosed. The alloy has the following broad weight percent composition. | 06-13-2013 |
20160002757 | High Strength, High Toughness Steel Alloy - A high strength, high toughness steel alloy is disclosed. The alloy has the following weight percent composition. | 01-07-2016 |