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Class Information
Number: 420/99
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > One percent or more carbon containing, but less than 1.7 percent
Description: Alloy or metallic composition containing 1 percent or more carbon.










Sub-classes under this class:

Class Number Class Name Patents
420/100 Chromium containing 33


Patents under this class:

Patent Number Title Of Patent Date Issued
8540934 Lead free free-cutting steel and its use Sep. 24, 2013
8491731 Alloy composition, Fe-based nano-crystalline alloy and forming method of the same and magnetic component Jul. 23, 2013
8372217 Iron-based high saturation magnetic induction amorphous alloy core having low core and low audible noise Feb. 12, 2013
7718843 Iron powder for organic chlorinated compound decomposition and detoxifying treatment method using the same May. 18, 2010
7291421 Battery pack Nov. 6, 2007
6893609 Bearing material May. 17, 2005
6572713 Grain-refined austenitic manganese steel casting having microadditions of vanadium and titanium and method of manufacturing Jun. 3, 2003
6375895 Hardfacing alloy, methods, and products Apr. 23, 2002
6261389 Synchronizer ring Jul. 17, 2001
6258316 Steel ballistic shot and production method Jul. 10, 2001
5876519 Fe-based amorphous alloy Mar. 2, 1999
5861565 Synchronizer ring Jan. 19, 1999
5648044 Graphite steel for machine structural use exhibiting excellent free cutting characteristic, cold forging characteristic and post-hardening/tempering fatigue resistance Jul. 15, 1997
5478523 Graphitic steel compositions Dec. 26, 1995
5364477 Iron rich metallic glasses having high saturation induction and superior soft ferromagnetic properties at high magnetization rates Nov. 15, 1994
5211772 Wire rod for high strength and high toughness fine steel wire, high strength and high toughness fine steel wire, twisted products using the fine steel wires, and manufacture of the fine steel May. 18, 1993
5117874 Flexible fluid transport pipe having hydrogen-induced cracking resistant high-strength steel Jun. 2, 1992
5104464 Soft magnetic alloy film Apr. 14, 1992
5069871 Method of using an austenitic steel alloy as a wear part subject to gouging abrasion type metal loss Dec. 3, 1991
5067993 Magnetic core material made of Fe-Co base alloy for high frequencies Nov. 26, 1991
5066455 Alloy steel wires suitable for tire cord applications Nov. 19, 1991
5062909 Iron rich metallic glasses having saturation induction and superior soft ferromagnetic properties at high magnetization rates Nov. 5, 1991
4909843 Highly wear-resistant iron-nickel-copper-molybdenum sintered alloy with addition of phosphorous Mar. 20, 1990
4769214 Ultrahigh carbon steels containing aluminum Sep. 6, 1988
4737392 Steel wire with high tensile strength Apr. 12, 1988
4668310 Amorphous alloys May. 26, 1987
4629504 Steel materials for welded structures Dec. 16, 1986
4433032 High chrome work roll Feb. 21, 1984
4402884 Method for producing ferro-nickel shots Sep. 6, 1983
4268305 Process for treating liquid steel intended in particular for manufacturing machine wire May. 19, 1981
4140524 Low alloy band saw steel and method of making the same Feb. 20, 1979
3939086 Highly classified oxidized developer material Feb. 17, 1976











 
 
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