| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 420099000 | One percent or more carbon containing, but less than 1.7 percent | 15 |
| 20110206552 | CARBON STEEL WIRE WITH HIGH STRENGTH AND EXCELLENT DUCTILITY AND FATIGUE RESISTANCE, PROCESS FOR PRODUCING THE SAME, AND METHOD OF EVALUATING THE SAME - Provided is a carbon steel wire with unprecedentedly high strength and excellent ductility and fatigue resistance, a process for producing the same, and a method of evaluating the same is provided. | 08-25-2011 |
| 20110305594 | STEEL MATERIAL COMPOSITION FOR PRODUCING PISTON RINGS AND CYLINDER SLEEVES - The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.03-2.0% by weight B, 0.5-1.2% by weight C, 70.1-97.3% by weight Fe, 0.1-3.0% by weight Mn and 2.0-10.0% by weight Si. Said composition can be produced by melting the starting materials and casting the melt in a pre-fabricated mould. | 12-15-2011 |
| 20120087825 | Pearlite-Based High Carbon Steel Rail Having Excellent Ductility And Process For Production Thereof - This high-carbon pearlitic steel rail having excellent ductility, includes: in terms of percent by mass, C: more than 0.85% to 1.40%; Si: 0.10% to 2.00%; Mn: 0.10% to 2.00%; Ti: 0.001% to 0.01%; V: 0.005% to 0.20%; and N: less than 0.0040%, with the balance being Fe and inevitable impurities, wherein contents of Ti and V fulfill the following formula (1), and a rail head portion has a pearlite structure. | 04-12-2012 |
| 20130216423 | HIGH CARBON STEEL WIRE ROD HAVING EXCELLENT DRAWABILITY - This high carbon steel wire rod, which has excellent drawability in addition to high strength required for a wire rod, contains 0.6-1.5% of C, 0.1-1.5% of Si, 0.1-1.5% of Mn, 0.02% or less of P (excluding 0%), 0.02% or less of S (excluding 0%), 0.03-0.12% of Ti, 0.001-0.01% of B and 0.001-0.005% of N, with solid-solved B being 0.0002% or more, solid-solved N being 0.0010% or less, and the balance being made up of iron and inevitable impurities. In addition, the content of Ti solid-solved in the steel is 0.002% by mass or more, and the content of Ti that formed carbides is 0.020% by mass or more. | 08-22-2013 |
| 420100000 | Chromium containing | 11 |
| 20150110667 | HIGH-STRENGTH AND HIGH-DUCTILITY STEEL SHEET AND METHOD OF MANUFACTURING THE SAME - A high-strength and high-ductility steel sheet having a composition including, by weight, 1.0 to 1.4% C, 5.0 to 9.0% Mn, 2.0 to 8.0% Cr and the balance Fe, and unavoidable impurities. The steel sheet has an austenite structure formed at room temperature, and stacking fault energy is effectively controlled by the addition of Cr and N | 04-23-2015 |
| 20160024624 | IMPACT RESISTANT HARDFACING AND ALLOYS AND METHODS FOR MAKING THE SAME - Disclosed herein are embodiments of alloys which can be used for hardfacing applications, and hardfacing layers themselves. In particular, embodiments of the alloys can have high hardness as well as impact resistance. These advantageous properties can occur due to the inclusion of hardfacing particles, as well as other compositional, microstructural, thermodynamic, and performance criteria. | 01-28-2016 |
| 420101000 | Molybdenum containing | 9 |
| 20090274574 | FORGING STEEL AND ITS MANUFACTURING METHOD, AND FORGED PARTS - A forging steel has a dissolved Mg concentration within the range of 0.04-5 ppm by mass and a dissolved Al concentration within the range of 50-500 ppm. | 11-05-2009 |
| 20100221139 | Steel Having High Mechanical Strength and Wear Resistance - Method for reducing the segregated seams of a steel which has high mechanical strength and high wear resistance and whose composition comprises by weight: 0.30%≦C≦1.42%; 0.05%≦Si≦1.5%; Mn≦1.95%; Ni≦2.9%; 1.1%≦Cr≦7.9%; 0.61%≦Mo≦4.4%; optionally V≦1.45%, Nb≦1.45%, Ta≦1.45% and V+Nb/2+Ta/4≦1.45%; less than 0.1% of boron, less than 0.19% of (S+Se/2+Te/4), less than 0.01% of calcium, less than 0.5% of rare earths, less than 1% of aluminum, less than 1% of copper; the balance being iron and impurities resulting from the production operation. The composition further complies with: 800≦D≦1150 with D=540(C) | 09-02-2010 |
| 20140219859 | ALLOYS FOR HARDBANDING WELD OVERLAYS - Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises <10 μm carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are families of alloys capable of forming crack-free weld overlays after multiple welding passes. | 08-07-2014 |
| 20140234154 | HARD WELD OVERLAYS RESISTANT TO RE-HEAT CRACKING - A hard weld overlay which is resistant to cracking when re-heated, and a method for designing such alloys, is disclosed. The alloys are able to resist re-heat cracking through prevention of the precipitation and/or growth of embrittling carbide, borides, or borocarbides at elevated temperatures. In one embodiment, the thermodynamics of the alloy system possess only primary carbides and secondary ferrite carbides. | 08-21-2014 |
| 20170233854 | COLD WORK TOOL STEEL | 08-17-2017 |
| 420102000 | Cobalt containing | 4 |
| 20120093679 | METHOD FOR THE PRODUCTION OF TOOLS MADE OF ALLOYED STEEL AND TOOLS IN PARTICULAR FOR THE CHIP-REMOVING MACHINING OF METALS - The invention relates to a method for the production of tools for a chip-removing machining of metallic materials and to a tool with improved wear resistance and/or high toughness. The invention further provides an alloyed steel with a chemical composition comprising carbon, silicon, manganese, chromium, molybdenum, tungsten, vanadium, and cobalt as well as aluminum, nitrogen, and iron. The alloyed steel may be used to make tools to a hardness of greater than 66 HRC and increased chip-removing machining performance. | 04-19-2012 |
| 20140079585 | HIGH SPEED TOOL STEEL, MATERIAL FOR BLADE EDGE, CUTTING TOOL, AND MANUFACTURING METHOD OF MATERIAL FOR BLADE EDGE - A high speed tool steel containing, by mass percent, 0.5-1.5% of C; 1.0% or less of Si; 1.0% or less of Mn; 3.0-5.0% of Cr; 15.0-25.0% of one or two kinds of W and Mo according to a formula (W+2Mo); 1.0-less than 1.5% of V; 5.0-10.0% of Co; and a remainder including Fe and impurities, the high speed tool steel further containing 0.0005-0.004% of Ca and 0.005-0.015% of N. Also, a material for a blade edge that is made of the high speed tool steel and a cutting tool made by welding the material for the blade edge to a body material. Further, a manufacturing method of the material for the blade edge. | 03-20-2014 |
| 20150118098 | LOW TEMPERATURE HARDENABLE STEELS WITH EXCELLENT MACHINABILITY - The present invention relates to the application of at least partially bainitic or interstitial martensitic heat treatments on steels, often tool steels or steels that can be used for tools. The first tranche of the heat treatment implying austenitization is applied so that the steel presents a low enough hardness to allow for advantageous shape modification, often trough machining. Thus a steel product is obtained which can be shaped with ease and whose hardness can be raised to a higher working hardness with a simple heat treatment at low temperature (below austenitization temperature). | 04-30-2015 |
| 20160076591 | BEARING COMPONENT - A bearing component formed of a steel comprising: (A) from 0.8 to 2.5 wt. % C, (B) from 3.5 to 4.5 wt. % Cr, (C) from 3.9 to 11.25 wt. % Mo, (D) optionally one or more of the following elements: (D1) from 0 to 8.2 wt. % W, (D2) from 0 to 11 wt. % Co, (D3) from 0 to 0.5 wt. % Ni, (D4) from 0 to 6.75 wt. % V, (D5) from 0 to 0.35 wt. % Si, (D6) from 0 to 0.4 wt. % Mn, (D7) from 0 to 0.3 wt. % S, and (D8) from 0 to 0.05 wt. % P, and (E) the balance iron, together with unavoidable impurities. | 03-17-2016 |
