Resources Contact Us Home
High-strength martensitic stainless steel having superior fatigue properties in corrosive and erosive environment and method of producing the same

Image Number 2 for United States Patent #5232520.

A high strength martensitic stainless steel having superior anti-fatigue characteristics when used in a corrosive or erosive environment. The steel has a proof strength of 80 to 110 kg/mm.sup.2 and a composition containing specified amounts of carbon, silicon, manganese, chromium, nickel, molybdenum, vanadium, and nitrogen, the balance being substantially iron and incidental inclusions. The contents of the additives are such that a nickel equivalent Nieq given by the following Formula (1) ranges between 10.5 and 12.9 wt. %:where, [Ni], [Mn], [Cr], [Si], and [Mo], respectively represent the contents of Ni, Mn, Cr, Si, and Mo, respectively. The steel may also contain niobium or copper. The steel is produced by a process which includes a hot work and a subsequent cooling at a specific cooling rate to a specific temperature range.

  Recently Added Patents
Storage apparatus and method including page discard processing for primary and secondary volumes configured as a copy pair
Squib control circuit
Cascode circuit device with improved reverse recovery characteristic
Display unit and display method
Software management system for network data processing systems
Bio-stimulant for improved plant growth and development
System and method for converting biomass to ethanol via syngas
  Randomly Featured Patents
Kinetofrictional force testing apparatus
Optimizing server delivery of content by selective inclusion of optional data based on optimization criteria
Delay storage device and delay treating method
Pyrazolo[1,5-a]pyrido[3,2-e]pyrimidine-7-carboxylic acid derivatives
Weather shield solar heat collector per reflector
Light diffusive sheet
System having status update controller for determining which one of parallel operation results of execution units is allowed to set conditions of shared processor status word
Derivation of pluripotential embryonic cell lines from ungulate species
Computerized process serving for the manufacture of clip-ons for eyeglasses
Healing cap for dental implant