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Class Information
Number: 420/42
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Nine percent or more chromium containing > Over 0.05 percent sulfur, over 0.04 percent phosphorus or sulfur or phosphorus added in any amount to promote machinability
Description: Alloys or metallic composition which contains one or more of more than 0.05 percent sulfur or more than 0.04 percent phosphorus or which contain any amount of sulfur or phosphorus which is positively stated to be present to promote machinability of this alloy or metallic composition.










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
8287805 Brazing material Oct. 16, 2012
8241558 High-Cr, high-Ni, heat-resistant, austenitic cast steel and exhaust equipment members formed thereby Aug. 14, 2012
8137613 Austenitic stainless steel welded joint and austenitic stainless steel welding material Mar. 20, 2012
8017071 Corrosion-resistant, cold-formable, machinable, high strength, martensitic stainless steel Sep. 13, 2011
7754305 High Mn austenitic stainless steel Jul. 13, 2010
7754144 High Nb, Ta, and Al creep- and oxidation-resistant austenitic stainless steel Jul. 13, 2010
7744813 Oxidation resistant high creep strength austenitic stainless steel Jun. 29, 2010
7731895 Austenitic Fe-Ni-Cr alloy Jun. 8, 2010
7455811 Brazing material and brazed products manufactured therewith Nov. 25, 2008
7381369 Free cutting alloy Jun. 3, 2008
7297214 Free cutting alloy Nov. 20, 2007
6921511 Sulphur-containing ferritic stainless steel that can be used for ferromagnetic parts Jul. 26, 2005
6893608 Steel for plastic molds and process for their heat treatment May. 17, 2005
6793746 Stainless steel parts with suppressed release of sulfide gas and method of producing Sep. 21, 2004
6761853 Free-cutting tool steel Jul. 13, 2004
6685881 Stainless cast steel having good heat resistance and good machinability Feb. 3, 2004
6663726 High-hardness prehardened steel for cold working with excellent machinability, die made of the same for cold working, and method of working the same Dec. 16, 2003
6527879 Self-lubricating piston ring material for internal combustion engine and piston ring Mar. 4, 2003
6485680 Resulfurized austenitic stainless steel Nov. 26, 2002
6461452 Free-machining, martensitic, precipitation-hardenable stainless steel Oct. 8, 2002
6383310 Exhaust equipment member, internal combustion engine system using same, and method for producing such exhaust equipment member May. 7, 2002
6358334 Steel holder block for plastic molding Mar. 19, 2002
6215615 Data storage device Apr. 10, 2001
6146475 Free-machining martensitic stainless steel Nov. 14, 2000
6096262 Martensitic heat resisting steel Aug. 1, 2000
6060018 Cold tool steel featuring high size stability, wear-resistance and machinability May. 9, 2000
6033625 Parts of electronic devices made of ferritic free cutting stainless steel Mar. 7, 2000
5922145 Steel products excellent in machinability and machined steel parts Jul. 13, 1999
5919577 Fe-based alloy foil for liquid-phase diffusion bonding of Fe-based materials by enabling bonding in oxidizing atmospheres Jul. 6, 1999
5837190 Free-machining austenitic stainless steel Nov. 17, 1998
5804137 Corrosion and wear resistant iron alloy Sep. 8, 1998
5788922 Free-machining austenitic stainless steel Aug. 4, 1998
5707586 Free machining stainless steel and components for automotive fuel and exhaust systems made therefrom Jan. 13, 1998
5656237 Resulfurized austenitic stainless steel with improved machinability Aug. 12, 1997
5641453 Iron-based alloy for plastic molds Jun. 24, 1997
5601664 Corrosion-resistant magnetic material Feb. 11, 1997
5527505 Process for the manufacture of fermented milk Jun. 18, 1996
5496515 Ferritic stainless steel with improved machinability Mar. 5, 1996
5489416 Heat-resistant, austenitic cast steel and exhaust equipment member made thereof Feb. 6, 1996
5482674 Free-machining austenitic stainless steel Jan. 9, 1996
5470402 Ferritic heat-resistant cast steel and process for producing the same Nov. 28, 1995
5413754 Ferritic stainless steel exhibiting excellent atmospheric corrosion resistance and crevice corrosion resistance May. 9, 1995
5405575 High Cr content, P added ferritic stainless steel having improved atmospheric corrosion resistance and rust prevention Apr. 11, 1995
5190722 High cold-forging electromagnetic stainless steel Mar. 2, 1993
5129959 Sulfur treatment of magnesium-contaminated Fe-Cr-Al alloy for improved whisker growth Jul. 14, 1992
5089224 Resulphurized austenitic stainless steel with improved machinability Feb. 18, 1992
5087414 Free machining, mon-magnetic, stainless steel alloy Feb. 11, 1992
4964926 Ferritic stainless steel Oct. 23, 1990
4933142 Low carbon plus nitrogen free-machining austenitic stainless steels with improved machinability and corrosion resistance Jun. 12, 1990

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