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Class Information
Number: 420/53
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Nine percent or more chromium containing > Eight percent or more nickel containing > Molybdenum containing > Group iv or v transition metal containing
Description: Alloy or metallic composition which additionally contains one or more of titanium, zirconium, hafnium, vanadium, niobium or tantaium.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8663549 Heat-resisting steel for engine valves excellent in high-temperature strength Mar. 4, 2014
8506729 Austenite-type stainless steel hot-rolling steel material with excellent corrosion resistance, proof-stress, and low-temperature toughness and production method thereof Aug. 13, 2013
8430075 Superaustenitic stainless steel and method of making and use thereof Apr. 30, 2013
8318083 Cast heat-resistant austenitic steel with improved temperature creep properties and balanced alloying element additions and methodology for development of the same Nov. 27, 2012
8105447 Austenitic stainless hot-rolled steel material with excellent corrosion resistance, proof stress, and low-temperature toughness Jan. 31, 2012
8097098 Martensitic stainless steel composition, method for making a mechanical part from said steel and resulting part Jan. 17, 2012
8071020 High strength Cr-Ni alloy material and seamless pipe for oil well Dec. 6, 2011
8003045 Cast, heat-resistant austenitic stainless steels having reduced alloying element content Aug. 23, 2011
7959854 Heat resistant alloy adapted to precipitate fine Ti-Nb-Cr carbide or Ti-Nb-Zr-Cr carbide Jun. 14, 2011
7901519 High strength martensitic stainless steel alloys, methods of forming the same, and articles formed therefrom Mar. 8, 2011
7879159 Martensitic stainless steel strengthened by Ni.sub.3Ti .eta.-phase precipitation Feb. 1, 2011
7842141 Stainless-steel pipe for oil well and process for producing the same Nov. 30, 2010
7815848 Corrosion resistant alloy and components made therefrom Oct. 19, 2010
7754142 Acid resistant austenitic alloy for valve seat inserts Jul. 13, 2010
7749432 Cast, heat-resistant austenitic stainless steels having reduced alloying element content Jul. 6, 2010
7731895 Austenitic Fe-Ni-Cr alloy Jun. 8, 2010
7708842 Metal gasket May. 4, 2010
7651575 Wear resistant high temperature alloy Jan. 26, 2010
7455811 Brazing material and brazed products manufactured therewith Nov. 25, 2008
7014720 Austenitic stainless steel tube excellent in steam oxidation resistance and a manufacturing method thereof Mar. 21, 2006
6562293 Material formulation for galvanizing equipment submerged in molten aluminum and aluminum/zinc melts May. 13, 2003
6494789 Golf club head Dec. 17, 2002
6485679 Heat resistant austenitic stainless steel Nov. 26, 2002
6352670 Oxidation and corrosion resistant austenitic stainless steel including molybdenum Mar. 5, 2002
6290905 Welding material Sep. 18, 2001
6171547 Austenitic stainless steel having excellent sulfuric acid corrosion resistance and excellent workability Jan. 9, 2001
6146582 Austenitic stainless steel with good oxidation resistance Nov. 14, 2000
6060180 Alloy having high corrosion resistance in environment of high corrosiveness, steel pipe of the same alloy and method of manufacturing the same steel pipe May. 9, 2000
5976275 High-nickel austenitic stainless steel resistant to degradation by neutron irradiation Nov. 2, 1999
5855844 High-strength, notch-ductile precipitation-hardening stainless steel alloy and method of making Jan. 5, 1999
5827476 Austenitic stainless steel with good oxidation resistance Oct. 27, 1998
5795540 Corrosion and wear-resistant chill casting Aug. 18, 1998
5753177 High-Ni austenitic stainless steel having excellent high-temperature strength May. 19, 1998
5753178 Austenitic stainless steel for use when hot May. 19, 1998
5681528 High-strength, notch-ductile precipitation-hardening stainless steel alloy Oct. 28, 1997
5660938 Fe-Ni-Cr-base superalloy, engine valve and knitted mesh supporter for exhaust gas catalyzer Aug. 26, 1997
5651843 Means for predicting preformance of stainless steel alloy for use with surgical needles Jul. 29, 1997
5620805 Alloy and multilayer steel tube having corrosion resistance in fuel combustion environment containing V, Na, S and Cl Apr. 15, 1997
5370838 Fe-base superalloy Dec. 6, 1994
5340413 Fe-NI based soft magnetic alloys having nanocrystalline structure Aug. 23, 1994
5194221 High-carbon low-nickel heat-resistant alloys Mar. 16, 1993
5194220 Austenitic cast steel and articles made thereof Mar. 16, 1993
5160389 Flexible tube for automotive exhaust systems Nov. 3, 1992
5158743 Hydrogen resistant alloy Oct. 27, 1992
5077006 Heat resistant alloys Dec. 31, 1991
5021215 High-strength, heat-resistant steel with improved formability and method thereof Jun. 4, 1991
4999159 Heat-resistant austenitic stainless steel Mar. 12, 1991
4981647 Nitrogen strengthened FE-NI-CR alloy Jan. 1, 1991
4897132 Turbine casing formed of a heat resistant austenitic cast steel Jan. 30, 1990
4861547 Iron-chromium-nickel heat resistant alloys Aug. 29, 1989

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