Patent application number | Description | Published |
20100272593 | HIGH CORROSION-RESISTANT, HIGH-STRENGTH AND NON-MAGNETIC STAINLESS STEEL, HIGH CORROSION-RESISTANT, HIGH-STRENGTH AND NON-MAGNETIC STAINLESS STEEL PRODUCT AND METHOD FOR PRODUCING THE SAME - The present invention provides a high corrosion-resistant, high-strength and non-magnetic stainless steel containing: C: 0.01% to 0.05% by mass, Si: 0.05% to 0.50% by mass, Mn: more than 16.0% by mass but 19.0% by mass or less, P: 0.040% by mass or less, S: 0.010% by mass or less, Cu: 0.50% to 0.80% by mass, Ni: 3.5% to 5.0% by mass, Cr: 17.0% to 21.0% by mass, Mo: 1.80% to 3.50% by mass, B: 0.0010% to 0.0050% by mass, O: 0.010% by mass or less, and N: 0.45% to 0.65% by mass, with the balance substantially composed of Fe and unavoidable impurities, the steel satisfying the following equations (1) to (4): | 10-28-2010 |
20120288399 | HIGH-HARDNESS HARDFACING ALLOY POWDER - The present invention relates to a high-hardness hardfacing alloy powder, containing: 0.511-15-2012 | |
20130287620 | STEEL FOR STEAM TURBINE BLADE WITH EXCELLENT STRENGTH AND TOUGHNESS - The present invention aim at providing a steel for steam turbine blades which is excellent in terms of strength and toughness. The steel of the present invention has a composition which contains, in terms of % by mass, 0.02-0.10% of C, up to 0.25% of Si, 0.001-0.10% of Mn, up to 0.010% of P, up to 0.010% of S, 8.5-10.0% of Ni, 10.5-13.0% of Cr, 2.0-2.5% of Mo, 0.001-0.010% of N, 1.15-1.50% of Al, less than 0.10% of Cu, up to 0.20% of Ti, and the remainder being incidental impurities and Fe, and which satisfies 6.0≦Ni/Al≦8.0, 9.0≦Nieq≦11.0 and 17.0≦Creq≦19.0, in which | 10-31-2013 |
20130327446 | MARAGING STEEL - The present invention provides a maraging steel containing: 0.10≦C≦0.30 mass %, 6.0≦Ni≦9.4 mass %, 11.0≦Co≦20.0 mass %, 1.0≦Mo≦6.0 mass %, 2.0≦Cr≦6.0 mass %, 0.5≦Al≦1.3 mass %, and Ti≦0.1 mass %, with the balance being Fe and unavoidable impurities, and satisfying 1.00≦A≦1.08, in which A is 0.95+0.35×[C]−0.0092×[Ni]+0.011×[Co]−0.02×[Cr]−0.001×[Mo], where [C] indicates a content (mass %) of C, [Ni] indicates a content (mass %) of Ni, [Co] indicates a content (mass %) of Co, [Cr] indicates a content (mass%) of Cr, and [Mo] indicates a content (mass%) of Mo, respectively, The maraging steel has a tensile strength of 2,300 MPa or more and is also excellent in the toughness/ductility and fatigue characteristics. | 12-12-2013 |
20140212321 | HEAT-RESISTING STEEL FOR EXHAUST VALVES - The object of the present invention is to provide a heat-resistant steel for exhaust valves, having relatively small Ni content, high mechanical characteristics (for example, tensile strength, fatigue strength, wear resistance and hardness) at high temperature, and excellent oxidation resistance. The present invention provides a heat-resistant steel for exhaust valves, which includes: 0.45≦C<0.60 mass %, 0.3007-31-2014 | |
20140345752 | PRECIPITATION HARDENED FE-NI ALLOY - Provided is a precipitation hardened Fe—Ni alloy having the following constitutions: (1) the precipitation hardened Fe—Ni alloy including: from 0.01 to 0.08% by mass of C, from 0.02 to 1.0% by mass of Si, not more than 1.0% by mass of Mn, from 36.0 to 41.0% by mass of Ni, 14.0 or more and less than 20.0% by mass of Cr, from 0.01 to 3.0% by mass of Mo, from 0.1 to 1.0% by mass of Al, from 1.0 to 2.5% by mass of Ti, and from 2.0 to 3.5% by mass of Nb, with the balance being Fe and unavoidable impurities; (2) the precipitation hardened Fe—Ni alloy satisfying the following formulae: Ni≧6×Nb+17 and Nb/(Ti+Al)≧0.8. | 11-27-2014 |
20150056093 | MARAGING STEEL EXCELLENT IN FATIGUE CHARACTERISTICS - Provided is a maraging steel excellent in fatigue characteristics, including, in terms of % by mass: C: ≦0.015%, Ni: from 12.0 to 20.0%, Mo: from 3.0 to 6.0%, Co: from 5.0 to 13.0%, Al: from 0.01 to 0.3%, Ti: from 0.2 to 2.0%, O: ≦0.0020%, N: ≦0.0020%, and Zr: from 0.001 to 0.02%, with the balance being Fe and unavoidable impurities. | 02-26-2015 |
20150284823 | HOT-FORGEABLE NI-BASED SUPERALLOY EXCELLENT IN HIGH TEMPERATURE STRENGTH - The present invention provides a hot-forgeable Ni-based superalloy excellent in high temperature strength, including, in terms of % by mass: C: more than 0.001% and less than 0.100%, Cr: 11.0% or more and less than 19.0%, Co: 0.5% or more and less than 22.0%, Fe: 0.5% or more and less than 10.0%, Si: less than 0.1%, Mo: more than 2.0% and less than 5.0%, W: more than 1.0% and less than 5.0%, Mo+½W: 2.5% or more and less than 5.5%, S: 0.010% or less, Nb: 0.3% or more and less than 2.0%, Al: more than 3.00% and less than 6.50%, and Ti: 0.20% or more and less than 2.49%, with the balance being Ni and unavoidable impurities, in which (Ti/Al)×10 is 0.2 or more and less than 4.0 in terms of atomic ratio, and in which Al+Ti+Nb is 8.5% or more and less than 13.0% in terms of atomic %. | 10-08-2015 |