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Class Information
Number: 148/325
Name: Metal treatment > Stock > Ferrous (i.e., iron base) > Nine percent or more chromium containing
Description: Stock material which additionally contains 9 percent of more chromium.










Sub-classes under this class:

Class Number Class Name Patents
148/326 Age or precipitation hardened or strengthened 180
148/327 Eight percent or more total content of nickel and/or manganese containing 284


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8657971 Brake disk excellent in temper softening resistance and toughness Feb. 25, 2014
8647448 Nitratable steel piston rings and steel cylindrical sleeves, and casting method for the production thereof Feb. 11, 2014
RE44709 Soft Cr-containing steel Jan. 21, 2014
8613808 Thermal deposition of reactive metal oxide/aluminum layers and dispersion strengthened aluminides made therefrom Dec. 24, 2013
8608873 Stainless steel, cold strip produced from this steel, and method for producing a flat steel product from this steel Dec. 17, 2013
8608872 High-strength stainless steel pipe excellent in sulfide stress cracking resistance and high-temperature carbonic-acid gas corrosion resistance Dec. 17, 2013
8607941 Steel sheet for brake disc, and brake disc Dec. 17, 2013
8603213 Dispersoid reinforced alloy powder and method of making Dec. 10, 2013
8603263 Duplex stainless steel having excellent alkali resistance Dec. 10, 2013
8591673 Martensitic stainless steel and antifriction bearing using the same Nov. 26, 2013
8591672 Implantable medical devices comprising bio-degradable alloys Nov. 26, 2013
8580190 Durable iron-chromium-aluminum alloy showing minor changes in heat resistance Nov. 12, 2013
8562758 Austenitic-ferritic stainless steel Oct. 22, 2013
8557059 Plastic injection mold of low carbon martensitic stainless steel Oct. 15, 2013
8540933 Stainless austenitic low Ni steel alloy Sep. 24, 2013
8540825 Low-temperature stainless steel carburization method Sep. 24, 2013
8500923 High aluminum ferritic stainless steel sheet for weight sensor substrate, method for producing the same and weight sensor Aug. 6, 2013
8470098 Metal gasket Jun. 25, 2013
8440029 Stainless steel having good conductivity and ductility for use in fuel cell and method for producing the same May. 14, 2013
8440136 Steel alloy and tools or components manufactured out of the steel alloy May. 14, 2013
8435443 High-temperature alloy May. 7, 2013
8430075 Superaustenitic stainless steel and method of making and use thereof Apr. 30, 2013
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
8357328 Methods for processing nanostructured ferritic alloys, and articles produced thereby Jan. 22, 2013
8337749 Lean austenitic stainless steel Dec. 25, 2012
8337748 Lean austenitic stainless steel containing stabilizing elements Dec. 25, 2012
8333849 Low-carbon martensitic chromium-containing steel Dec. 18, 2012
8317943 Ball for constant velocity joint and method for producing the same Nov. 27, 2012
8317944 9 Cr-- 1 Mo steel material for high temperature application Nov. 27, 2012
8313691 Lean austenitic stainless steel Nov. 20, 2012
8303733 Ferrite-austenite stainless steel sheet for structural component excellent in workability and impact-absorbing property and method for producing the same Nov. 6, 2012
8273191 High-strength stainless steel material and production process of the same Sep. 25, 2012
8262815 High-purity ferritic stainless steel with excellent corrosion resistance and workability and method of production of same Sep. 11, 2012
8257512 Classes of modal structured steel with static refinement and dynamic strengthening and method of making thereof Sep. 4, 2012
8246762 Implantable medical devices comprising bio-degradable alloys Aug. 21, 2012
8226780 Ferrite-austenite stainless steel sheet excellent in ridging resistance and workability and process for manufacturing the same Jul. 24, 2012
8168008 Martensitic stainless steel pipe May. 1, 2012
8157930 Martensitic stainless steel Apr. 17, 2012
8152937 Ferritic stainless steel sheet having superior sulfuric acid corrosion resistance and method for manufacturing the same Apr. 10, 2012
8147748 Creep-resistant steel Apr. 3, 2012
8143985 Power distribution transformer and tank therefor Mar. 27, 2012
8124007 Stainless steel weld overlays with enhanced wear resistance Feb. 28, 2012
8118116 Elongated percussive rock drilling element, a method for production thereof and a use thereof Feb. 21, 2012
8092620 High strength austenitic TRIP steel Jan. 10, 2012
8048239 Ferritic stainless steel sheet superior in shapeability and method of production of the same Nov. 1, 2011
8038811 Process for producing bent pipe for line pipe Oct. 18, 2011
8034197 Ultra-high strength stainless steels Oct. 11, 2011
8034198 Austenitic stainless steel tube for boiler with excellent resistance to high temperature steam oxidation Oct. 11, 2011
8025839 Steel alloy and tools or components manufactured out of the steel alloy Sep. 27, 2011

1 2 3 4 5 6 7 8 9 10 11










 
 
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