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| Number | Title | Issue Date |
| 8137613 | Austenitic stainless steel welded joint and austenitic stainless steel welding material An austenitic stainless steel welded joint, whose base metal and weld metal each comprises, by mass percent, C: not more than 0.3%, Si: not more than 2%, Mn: 0.01 to 3.0%, P: more than 0.04% to not more than 0.3%, S: not more than 0.03%, Cr: 12 to 30%, Ni: 6 to 55%,... | 03/20/2012 |
| 7731895 | Austenitic Fe-Ni-Cr alloy An austenitic stainless steel improved in creep strength, creep ductility, weldability and also hot workability. The steel, consisting of, by mass %, C: 0.05-0.15%, Si: not more than 2%, Mn: 0.1-3%, P: 0.05-0.30%, S: not more than 0.03%, Cr: 15-28%, Ni: 8-55%, Cu: 0... | 06/08/2010 |
| 7455811 | Brazing material and brazed products manufactured therewith An iron based brazing material for joining objects by brazing represents an alloy, which apart from iron contains approximately 9-30% Cr, approximately 0-8% Mn, approximately 0-25% Ni, 0-1% N, a maximum of 7% Mo, less than about 6% Si, approximately 0-2% B and/or ab... | 11/25/2008 |
| 7381369 | Free cutting alloy Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal... | 06/03/2008 |
| 7361411 | Hardfacing alloy, methods, and products Disclosed is a hardfacing alloy capable of withstanding service abrasion of the order of silicious earth particles and weldable on industrial products, such as tool joints and stabilizers used in oil and gas well drilling, and other industrial products. The hardfaci... | 04/22/2008 |
| 7297214 | Free cutting alloy Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal... | 11/20/2007 |
| 7273584 | Method of manufacturing oxide dispersion strengthened martensitic steel excellent in high-temperature strength having residual α-grains An oxide dispersion strengthened martensitic steel excellent in high-temperature strength having residual α-grains can be manufactured by a method comprising mixing either element powders or alloy powders and a Y2O3 powder; subjecting the resu... | 09/25/2007 |
| 7170073 | Stainless steel product containing B and method for production thereof A stainless steel slab containing B, wherein a protecting material is joined onto at least two faces across the bloom from each other in a stainless steel bloom containing B of 0.3–2.5 mass %, being integrated into one-piece by forming a weld metal comprising a st... | 01/30/2007 |
| 7156280 | Braze alloy compositions A nickel-based high-temperature braze alloy composition includes Cr, Hf, and B. Furthermore, a cobalt-based high-temperature braze alloy composition includes Cr, Hf, and B. The braze alloys can be used, for example, as a single homogenous braze. The braze alloys can... | 01/02/2007 |
| 7153373 | Heat and corrosion resistant cast CF8C stainless steel with improved high temperature strength and ductility A CF8C type stainless steel alloy and articles formed therefrom containing about 18.0 weight percent to about 22.0 weight percent chromium and 11.0 weight percent to about 14.0 weight percent nickel; from about 0.05 weight percent to about 0.15 weight percent carbon... | 12/26/2006 |
| 7089728 | Single-piece turbine rotor and pinion gear and manufacturing technique for same A power transfer assembly comprises a power turbine constructed of a nickel alloy; a gear shaft constructed of a low-carbon carburized gear material; and a transition portion between and welded to each of the power turbine and gear shaft. The nickel alloy may be wel... | 08/15/2006 |
| 6921511 | Sulphur-containing ferritic stainless steel that can be used for ferromagnetic parts Ferritic stainless steel that can be used for ferromagnetic parts, characterized in that it comprises in its composition by weight: C≦0.030% 1.0% | 07/26/2005 |
| 6893608 | Steel for plastic molds and process for their heat treatment Maraging steel with improved machinability, good weldability, and high corrosion resistance, a process for the heat treatment of such a steel, as well as its use. According to the invention this steel contains (in % by weight) 0.02-0.075% carbon; 0.1-0.6% silicon; 0... | 05/17/2005 |
| 6793746 | Stainless steel parts with suppressed release of sulfide gas and method of producing Disclosed are stainless steel parts, particularly, parts of electronic apparatus, with which troubles caused by so-called “sulfide gas” mainly of H2S must be avoided. Release of the sulfide gas from the parts is effectively suppressed. The parts have ... | 09/21/2004 |
| 6685881 | Stainless cast steel having good heat resistance and good machinability Disclosed is an austenitic stainless cast steel which has such a good heat resistance as can be used at a high temperature higher than 950° C. and a good machinability. The stainless cast steel consists essentially of, by weight %, C: 0.2-0.4%, Si: 0.5-2... | 02/03/2004 |
| 6663726 | High-hardness prehardened steel for cold working with excellent machinability, die made of the same for cold working, and method of working the same There are provided a high-hardness prehardened steel for cold working having excellent machinability containing, by mass, not less than 0.3% but less than 0.5% C, 0.7 to 2.0% Si, and 0.08 to 0.25% S, a die for cold working which is fabricated by cutting t... | 12/16/2003 |
| 6527879 | Self-lubricating piston ring material for internal combustion engine and piston ring There are disclosed a piston ring material and a piston ring both having such superior properties contradictory each other as the sliding property required in a piston ring and the mechanical properties of a steel wire material subjected to a manufacture ... | 03/04/2003 |
| 6485680 | Resulfurized austenitic stainless steel Resulfurized stainless steel with high machinability and having an improved corrosion resistance, which includes, in its composition, anorthite- and/or pseudo-wollastonite- and/or gehlenite-type lime aluminosilicate inclusions combined with CrMnS inclusio... | 11/26/2002 |
| 6461452 | Free-machining, martensitic, precipitation-hardenable stainless steel A free-machining, precipitation-hardenable, martensitic stainless steel is described that provides a unique combination of machinability, processability, and toughness. The broad compositional range of the steel alloy of the invention is as follows, in we... | 10/08/2002 |
| 6383310 | Exhaust equipment member, internal combustion engine system using same, and method for producing such exhaust equipment member An exhaust equipment member having an exhaust gas path portion at least partially having a thickness of 5 mm or less is made of a heat-resistant, high-Cr, high-Ni, austenitic cast steel having weight ratios of Cr/Ni of 1.0-1.5 and Mn/S of 5 or more a comp... | 05/07/2002 |
| 6358334 | Steel holder block for plastic molding A manufacturing mold base for plastic injection molds is formed from a martensitic stainless steel alloy comprising: about 0.03%-0.06% by weight C, about 1.0%-1.6% by weight Mn, about 0.01%-0.03% by weight P, about 0.06%-0.3% by weight S, about 0.25%-1.0%... | 03/19/2002 |
| 6215615 | Data storage device Provided are novel data storage devices, such as hard disk apparatuses. The devices include a clean chamber accommodating a component formed from a free cutting stainless steel. The free cutting stainless steel has a sulfur (S) content of not less than 0.... | 04/10/2001 |
| 6146475 | Free-machining martensitic stainless steel A corrosion resistant, martensitic stainless steel alloy is disclosed having the following composition in weight percent. ______________________________________ wt. % ______________________________________ Carbon ... | 11/14/2000 |
| 6096262 | Martensitic heat resisting steel A martensitic heat resisting steel having improved heat resistance, which consists by weight percentage of 0.35%ࣘCࣘ0.60%, 1.0%ࣘSiࣘ2.5%, 0.1%ࣘMn | 08/01/2000 |
| 6060018 | Cold tool steel featuring high size stability, wear-resistance and machinability Cold tool steel having superior machinability, wear-resistance and minimized heat treatment size-change were obtained by specifying components and contents thereof, especially of C, Cr, Si, V and Mo, not by high-temperature soaking. Further, such preharde... | 05/09/2000 |
| 6033625 | Parts of electronic devices made of ferritic free cutting stainless steel Improved parts of electronic apparatus made of ferritic free cutting steel, which enjoy high precision in size given by good machinability and free from trouble caused by corrosion of metal due to generation of sulfides. The material steel has an alloy co... | 03/07/2000 |
| 5922145 | Steel products excellent in machinability and machined steel parts The present invention is directed to steel products which exhibit excellent machinability and are suitable for steel stocks of structural steel parts for a variety of machinery, such as transportation machinery including automobiles, machinery for industr... | 07/13/1999 |
| 5919577 | Fe-based alloy foil for liquid-phase diffusion bonding of Fe-based materials by enabling bonding in oxidizing atmospheres The present invention provides an Fe-based alloy foil for liquid phase diffusion bonding of Fe-based material by enabling bonding in oxidizing atmospheres at relatively high bonding temperatures to minimize thermal influence on the base material (the mate... | 07/06/1999 |
| 5837190 | Free-machining austenitic stainless steel The present invention relates to an austenitic stainless steel alloy and in particular to a resulfurized austenitic stainless steel alloy, and an article made therefrom, having a unique combination of corrosion resistance, machinability and low magnetic p... | 11/17/1998 |
| 5804137 | Corrosion and wear resistant iron alloy Erosion and wear resistant iron alloy, comprising: Cr 20.0-36.0% by weight, B 2.5-5.0% by weight, Mn 0.5-3.2% by weight, Si 0.05-0.6% by weight, Mo 0.3-2.5% by weight, V 0.05-0.3% by weight, Nb 0.03-0.3% by weight, P 0.5% by weight or less, C 0.05-0.3% by... | 09/08/1998 |
| 5788922 | Free-machining austenitic stainless steel An austenitic, stainless steel alloy is disclosed consisting essentially of, in weight percent, about ______________________________________ C 0.035 max Mn 3-10 Si 1.0 max P 0.05 max S ... | 08/04/1998 |
| 5707586 | Free machining stainless steel and components for automotive fuel and exhaust systems made therefrom A ferritic stainless steel alloy is disclosed having a unique combination of machinability, cold-formability, weldability, and corrosion resistance. The disclosed alloy has the following weight percent composition. ___________________________________... | 01/13/1998 |
| 5656237 | Resulfurized austenitic stainless steel with improved machinability The present invention relates to a resulfurized austenitic stainless steel with improved machinability, and which is especially useful in the field of machining at high cutting speed and in the field of bar turning.... | 08/12/1997 |
| 5641453 | Iron-based alloy for plastic molds The use of a chromium-containing martensitic alloy for plastic molds is described. The use properties of a thermally treated plastic mold of a hardness of at least 45 Rockwell C are improved by an iron-based alloy including, in weight-%, _______... | 06/24/1997 |
| 5601664 | Corrosion-resistant magnetic material A ferritic, stainless steel alloy containing in weight percent about 0.05% max. C, 2.0% max. Mn, 0.70-1.5% Si, 0.1-0.5% S, 15-20% Or, 0.80-3.00% Mo, 0.10-1.0% Nb, 0.06% max. N, and the balance iron and impurities, provides a unique combination of magnetic... | 02/11/1997 |
| 5527505 | Process for the manufacture of fermented milk Fermented milk with a controlled acidity increase during storage and transportation is disclosed. The fermented milk can be manufactured by inoculating raw milk with a nisin-producing lactic acid bacterium belonging to the genus Lactococcus lactis subsp. ... | 06/18/1996 |
| 5496515 | Ferritic stainless steel with improved machinability Ferritic stainless steel with improved machinability, which can be used especially in the field of screw machining, characterized by the following composition: C | 03/05/1996 |
| 5489416 | Heat-resistant, austenitic cast steel and exhaust equipment member made thereof Exhaust equipment members are made of a heat-resistant, austenitic cast steel having a composition consisting essentially, by weight, of 0.1-0.6% of C, less than 1.5% of Si, 1% or less of Mn, 8-20% of Ni, 15-30% of Cr, 0.2-1% of Nb, 2-6% of W, 0.001-0.01%... | 02/06/1996 |
| 5482674 | Free-machining austenitic stainless steel An austenitic, stainless steel alloy having a unique combination of machinability and a low magnetic permeability, especially in the cold worked condition, is disclosed consisting essentially of, in weight percent, about ________________________... | 01/09/1996 |
| 5470402 | Ferritic heat-resistant cast steel and process for producing the same A ferritic heat-resistant cast steel includes C in an amount of from 0.1 to 0.4% by weight, Si in an amount of from 0.5 to 2.0% by weight, Mn in an amount of 1.0% by weight or less, S in an amount of from 0.06 to 0.20% by weight, Ni in an amount of 1.0% b... | 11/28/1995 |
