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Class Information
Number: 420/69
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Nine percent or more chromium containing > Molybdenum or tungsten containing > Vanadium, niobium or tantalum containing
Description: Alloy or metallic composition which additionally contains one or more of vanadium, niobium and tantalum.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
RE44709 Soft Cr-containing steel Jan. 21, 2014
8623108 Wear-resistant material Jan. 7, 2014
8383034 Ferritic stainless steel sheet for water heater excellent in corrosion resistance at welded part and steel sheet toughness Feb. 26, 2013
8361247 High strength corrosion resistant steel Jan. 29, 2013
8337749 Lean austenitic stainless steel Dec. 25, 2012
8337748 Lean austenitic stainless steel containing stabilizing elements Dec. 25, 2012
8163233 Martensitic stainless steel for welded structures Apr. 24, 2012
8158057 Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells Apr. 17, 2012
8153054 High-temperature alloy Apr. 10, 2012
8147748 Creep-resistant steel Apr. 3, 2012
8007715 Welding additive material Aug. 30, 2011
7985372 Ferritic stainless steel sheet for use in raw material pipe for forming bellows pipe Jul. 26, 2011
7914732 Ferritic stainless steel cast iron, cast part using the ferritic stainless steel cast iron, and process for producing the cast part Mar. 29, 2011
7862666 Highly anticorrosive high strength stainless steel pipe for linepipe and method for manufacturing same Jan. 4, 2011
7819991 Ferritic stainless steel sheet for raw material pipe for bellows pipe Oct. 26, 2010
7820098 High Cr ferritic heat resistance steel Oct. 26, 2010
7806993 Heat-resistant ferritic stainless steel and method for production thereof Oct. 5, 2010
7785531 Alloy for roller bearing Aug. 31, 2010
7785426 Welded joint of tempered martensite based heat-resistant steel Aug. 31, 2010
7767037 High strength stainless steel pipe for use in oil well having superior corrosion resistance and manufacturing method thereof Aug. 3, 2010
7686898 Creep-resistant maraging heat-treatment steel Mar. 30, 2010
7682559 Cr-bearing heat-resistant steel sheet excellent in workability and method for production thereof Mar. 23, 2010
7572407 Martensitic stainless steel sheet and method for making the same Aug. 11, 2009
7531053 Fuel cell produced using a metallic material and its method of making May. 12, 2009
7476282 Martensitic stainless steel pipe Jan. 13, 2009
7445750 Reinforced durable steel, method for the production thereof, method for producing parts made of steel, and parts thus obtained Nov. 4, 2008
7341690 Soft Cr-containing steel Mar. 11, 2008
7297214 Free cutting alloy Nov. 20, 2007
6921440 Niobium-stabilized 14% chromium ferritic steel, and use of same in the automobile sector Jul. 26, 2005
6896847 Steel alloy plastic moulding tool and tough-hardened blank for plastic moulding tools May. 24, 2005
6881280 Iron-based alloy for internal combustion engine valve seat inserts and the like Apr. 19, 2005
6793744 Martenstic stainless steel having high mechanical strength and corrosion Sep. 21, 2004
6786981 Ferritic stainless steel sheet for fuel tank and fuel pipe Sep. 7, 2004
6770243 Chrome steel alloy Aug. 3, 2004
6756011 High-strength, high corrosion-resistant and non-magnetic stainless steel Jun. 29, 2004
6740174 Soft Cr-containing steel May. 25, 2004
6641780 Ferritic stainless steel having high temperature creep resistance Nov. 4, 2003
6582652 Stainless steel alloy having lowered nickel-chromium toxicity and improved biocompatibility Jun. 24, 2003
6521056 Ferritic stainless steel sheet having superior workability at room temperatures and mechanical characteristics at high temperatures Feb. 18, 2003
6511554 Stainless spheroidal carbide cast iron material Jan. 28, 2003
6479013 Casting components made from a tool steel Nov. 12, 2002
6475642 Oxidation-resistant coatings, and related articles and processes Nov. 5, 2002
6444168 Apparatus comprising furnaces, reactors or conduits used in applications requiring anti-coking properties and novel steel compositions Sep. 3, 2002
6436338 Iron-based alloy for internal combustion engine valve seat inserts Aug. 20, 2002
6419878 Fe-Cr alloy having excellent initial rust resistance, workability and weldability Jul. 16, 2002
6406563 Stainless spheroidal carbide cast iron Jun. 18, 2002
6290905 Welding material Sep. 18, 2001
6235238 Apparatus comprising furnaces, reactors or conduits having internal walls comprising at least partly of a steel alloy May. 22, 2001
6235237 Steel alloy for gliding elements May. 22, 2001
6232000 Abrasion, corrosion, and gall resistant overlay alloys May. 15, 2001

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