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| Number | Title | Issue Date |
| 7754142 | Acid resistant austenitic alloy for valve seat inserts A high-carbon austenitic iron-base alloy with good corrosion and wear resistance, particularly useful for valve seat insert applications when corrosion resistance is required, comprises about 1.8-3.5 wt % carbon, about 12-24 wt % chromium, about 0.5-4 wt % silicon, ... | 07/13/2010 |
| 7442338 | Product manufacture in structural metallic materials reinforced with carbides The present invention develops a manufacture method, via conventional liquid metallurgy, of finished and semi-finished metallic parts as casting, ingot, blooms and slabs in alloys base Fe, base Ni and base Co, microstructurally reinforced with complex molybdenum and... | 10/28/2008 |
| 7288157 | Corrosion and wear resistant alloy A powder metallurgy corrosion and wear resistant tool steel article, and alloy thereof. The article is manufactured by hot isostatic compaction of nitrogen atomized, prealloyed high-chromium, high-vanadium, high-niobium powder particles. The alloy is characterized b... | 10/30/2007 |
| 7282078 | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-res... | 10/16/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7235116 | High temperature corrosion and oxidation resistant valve guide for engine application A powder metal component particularly suited for use as a valve guide in high temperature applications. The powder metal component according to a first embodiment has a chemical composition on a weight percent basis of about 0.1-2.0% C; about 8.0-18.0% Cr; about 1.0... | 06/26/2007 |
| 7163593 | Iron-based alloy and method for production thereof An iron-based alloy comprises 1.5 to 2.5 wt % of C, 0.25 to 4.75 wt % of Ni, and W and V in quantities surrounded by the line L as shown in FIG. 1 of the attached drawings with a balance of Fe and inevitable impurities. The iron-based alloy is obtained by a f... | 01/16/2007 |
| 7094473 | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-res... | 08/22/2006 |
| 6916444 | Wear resistant alloy containing residual austenite for valve seat insert This invention related to a novel iron base alloy using residual austenite to improve wear resistance for valve seat insert material for internal combustion engines. The residual austenite is stable even after heat treatment and liquid nitrogen chilling. The alloy c... | 07/12/2005 |
| 6908589 | High manganese cast iron containing spheroidal vanadium carbide and method for making therof The purpose of the present invention is to provide high manganese cast iron containing spheroidal vanadium carbide and method for making which is nonmagnetic as well as superior mechanical properties such as wear-resistance and toughness, and further does not requir... | 06/21/2005 |
| 6866816 | Wear and corrosion resistant austenitic iron base alloy A unique austenitic iron base alloy for wear and corrosion resistant applications, characterized by its excellent sulfuric acid corrosion resistance and good sliding wear resistance, is useful for valve seat insert applications when corrosion resistance is required.... | 03/15/2005 |
| 6761777 | High chromium nitrogen bearing castable alloy The present invention is directed to a corrosion and erosion resistant High Chromium, Nitrogen bearing alloy, comprising the following composition in wt. %: 28-48 chromium, 0.01-0.7 nitrogen, 0.5-30 manganese, 0.01-5 boron, 0.3-2.5 carbon, up to 0.01-25 cobalt plus ... | 07/13/2004 |
| 6511554 | Stainless spheroidal carbide cast iron material The present invention relates to stainless spheroidal carbide cast iron material is such: comprises iron (Fe) as its main component, C 0.6~4.0% and V 4~15% as its necessary components, P 0.01~0.15%, S 0.01~0.05% Al 0.05~1.0%, and Mg 0.01~0.2% as gas ... | 01/28/2003 |
| 6406563 | Stainless spheroidal carbide cast iron The present invention relates to stainless spheroidal carbide cast iron is such: comprises Fe as its main component;, C 0.6~4.0% and V 4~15% as its necessary components, P 0.01~0.15%, S 0.01~0.05%, and Al 0.05~1.0% as bubble assistants, and Ni 4~15%,... | 06/18/2002 |
| 6348109 | Steel material and method for its manufacturing A steel material which is manufactured in a non-powder metallurgical way, comprising production of ingots or castings from a melt, consists of an alloy having the following chemical composition in weight-% Carbon: 2.0-4.3%, Silicon: 0.1-2.0%, Manganese: 0... | 02/19/2002 |
| 5795540 | Corrosion and wear-resistant chill casting A corrosion and wear-resistant chill cast part is formed from an iron composition comprising from 26 to 36 percent Cr; 0 to 10 percent Ni; 2 to 6 percent Mo; 0 to 3 percent Cu; 0 to 0.2 percent N; 0 to 1.5 percent Si; 0 to 1.5 percent Mn; 4 to 9 percent V... | 08/18/1998 |
| 5674449 | Iron base alloys for internal combustion engine valve seat inserts, and the like An iron base alloy having high wear resistance at elevated temperatures with good oxidation resistance contains 1-2.8 wt. % carbon, 3-16 wt. % chromium, 1-8 wt. % vanadium, 0.5-5 wt. % niobium, up to 14 wt. % molybdenum and up to 14 wt. % tungsten, the mo... | 10/07/1997 |
| 5316596 | Roll shell material and centrifugal cast composite roll A roll shell, material is composed of C: 1.5~3.5%, Si: 1.5% or less, Mn: 1.2% or less, Cr: 5.5~12.0%, Mo: 2.0~8.0%, V: 3.0~10.0%, Nb: 0.6~7.0%, and satisfies the following formulae (1) and (2): V+1.8 Nbࣘ7.5 C-6.0 (%) (1) 0.2... | 05/31/1994 |
| 5292382 | Molybdenum-iron thermal sprayable alloy powders An improved thermal sprayable molybdenum-iron alloy powder useful for forming wear and abrasion resistant coatings having high thermal conductivity and preferably good corrosion resistance. The preferred embodiment of the alloy powder includes two distinc... | 03/08/1994 |
| 5246661 | Erosion and corrsion resistant alloy Air-meltable, castable, machinable, hardenable alloys that are very resistance to highly corrosive and abrasive slurries or fluids consisting essentially of, by weight, about 25% to about 37% chromium, about 12% to about 35% nickel, about 2% to about 7% m... | 09/21/1993 |
| 5202087 | Cement cooler grate alloy Alloys are provided which consist essentially of: ______________________________________ CHROMIUM 11-20% By Weight NICKEL 3-10.5% MOLYBDENUM 1-4% CARBON 2-4.5% NITROGEN Up to about 0.25% SI... | 04/13/1993 |
| 5106577 | Cement cooler grate alloy Heat resistant alloys which have excellent abrasion resistance in the 1200° to 1400° F. (650° to 760° C.) temperature range and good resistance to hot gas corrosion resistance to about 1600° F. (870° c.), consisting essentially of: _______... | 04/21/1992 |
| 5063116 | Wire for dot printer A powder metallurgy wire for a dot printer is disclosed which consists, by weight, of 1.5 to 2.8% C, 7.5 to 12.0% Cr, at least one kind selected from the group consisting of not more than 18.0% W and not more than 11.0% Mo which W and Mo meet the relation... | 11/05/1991 |
| 4964908 | High density sintered ferrous alloys Sintered ferrous alloys of at least 90% theoretical density are obtained by sintering a powder mixture containing atomized copper-free ferrous slloy, copper phosphide and, optionally, copper, copper alloy and/or graphite to provide a sintered alloy contai... | 10/23/1990 |
| 4935266 | Process and material for producing corrosion-resistant layers A process for producing a corrosion-resistant protection on stabilizing wall surfaces and superheater tubes in sulfur-bearing hot gases which are used at surfaces temperatures of over 400° C. in combustion installations, and a material in powder form whi... | 06/19/1990 |
| 4929416 | Cast steel Cast steel has the composition (% by mass) ______________________________________ carbon 1.6-3.0 silicon 1.2-1.6 manganese 11.0-15.0 chromium 9.0-10.8 cerium 0.001-0.2 vanadium 0.15-0.3 titanium ... | 05/29/1990 |
| 4880461 | Super hard high-speed tool steel A super hard high-speed tool steel having a composition satisfying the condition of 0ࣘC-Ceqࣘ0.6 (where Ceq=0.06Cr+0.033 W+0.063 Mo+0.2 V within the range of 1.7ࣘCࣘ4.1%, the composition containing 3 to 10% of Cr, 1 to 20% of W, 1 to 15% of Mo (wher... | 11/14/1989 |
| 4720435 | Nuclear grade steel articles Disclosed is an iron-base alloy eminently suited for use as components in nuclear energy installations. The alloy normally contains, in percent by weight, about 20% chromium, about 10% nickel, about 5.5% silicon, about 1.5% carbon, about 8% niobium plus v... | 01/19/1988 |
| 4711677 | High temperature bushing alloy A cast austenitic stainless steel bushing for relatively high temperature turbocharger and automotive applications is provided having good hot hardness and hot strength properties and a co-effficient of thermal expansion approximating that of the parent h... | 12/08/1987 |
| 4643767 | Nuclear grade steels Disclosed is an iron-base alloy eminently suited for use as components in nuclear energy installations. The alloy normally contains, in percent by weight, about 20% chromium, about 10% nickel, about 5.5% silicon, about 1.5% carbon, about 8% niobium plus v... | 02/17/1987 |
| 4638847 | Method of forming abrasive resistant white cast iron This invention relates to cast iron and more particularly to the improvement in the toughness and abrasive resistance of white cast iron along with a significant increase in tensile strength. More specifically, the present invention relates to a new white... | 01/27/1987 |
| 4604781 | Highly abrasive resistant material and grinding roll surfaced therewith An alloy characterized by its highly abrasive resistant qualities which render it particularly suitable for use as the material from which to fabricate the external surface of a grinding, i.e., pulverizer, roll (18) of the type that is designed to be empl... | 08/12/1986 |
| 4584019 | Wear resistant coating alloy Wear resistant coatings of highly alloyed filler metal are deposited on base materials of carbon and manganese bearing ferrous alloys and this, depending on the carbon and manganese content of the base material with or without buffer layer, employing low ... | 04/22/1986 |
| 4547221 | Abrasion-resistant refrigeration-hardenable ferrous alloy An abrasion-resistant high-chromium type of alloyed white iron, which can be hardened and toughened by refrigeration at sub-zero temperatures, containing as its essential alloying constituents about 2.6% to about 3.6% carbon, about 12% to about 22% chromi... | 10/15/1985 |
| 4487630 | Wear-resistant stainless steel A high chromium stainless steel especially suited for use as wear (galling) resisting components, for example, valve parts. A typical alloy generally contains chromium, nickel, silicon, carbon, an effective cobalt content and the balance iron plus normal ... | 12/11/1984 |
| 4433032 | High chrome work roll In a high chrome work roll, between the outer layer of a cast iron containing 10~25 weight % Cr and the core of a ductile cast iron containing less than 1.5 weight % Cr, an intermediary layer of a cast iron containing 5~10 weight % Cr is provided, and uni... | 02/21/1984 |
| 4432883 | Seal with teflon or rubber A part is made of a material comprising less than 90% by weight of a polymer selected from the group consisting of polytetrafluoroethylene, polyurethane, nitrile, fluoroelastomer, and polyphenylene sulfide; and more than 10% by weight of another material,... | 02/21/1984 |
| 4363660 | Iron-base alloy having high resistance to molten zinc attack An iron-base alloy having high erosion resistance to molten zinc attack which essentially consists of (by weight): 0.01 to 2% of carbon; 0.01 to 2% of silicon; 0.01 to 2% of manganese; totally 1 to 6% of at least one element selected from the group consisting ... | 12/14/1982 |
| 4324584 | Process for the decarburization of chromium-containing pig iron A process is disclosed for the decarburization of a molten bath of chromium-containing pig iron which, in a single operation, permits decarburization by means of an oxygen jet and thus permits chromium or nickel chromium steels to be obtained directly, th... | 04/13/1982 |
| 4294613 | Acid resistant, high-strength steel suitable for polishing A high strength steel, suitable for polishing and acid-resistant cohesion, comprising besides iron and the usual residual elements, at most 2% (by weight) of C, at most 1% (by weight) of Si, at most 5% (by weight) of Mn, at most 15% (by weight) of Cr, at ... | 10/13/1981 |
