SteelJIS: Japanese steel and alloy designation

SteelJIS:   Japanese Steels and Alloys

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Japanese steel designation

The names of steel grades in Japan consist of several letters and numbers.
Letters define the group to which a particular steel belongs,
numbers - its sequence number in a group or some property

All grades
by alphabet
  NCF

  S
  SACM
  SAPH

  SC
  SCC
  SCCrM
  SCH
  SCM
  SCMn
  SCMnCr
  SCMnCrM
  SCMnM
  SCNCrM
  SCr
  SCS
  SCSiMn

  SEV

  SG
  SGV

  SH

  SK
  SKD
  SKH
  SKS
  SKT

  SLA

  SM
  SMA
  SMn
  SMnC

  SNC
  SNCM

  SPC
  SPFC
  SPV

  SS
  SSC

  STAM
  STK
  STPA
  STPG
  STF
  STFA

  SUH
  SUJ
  SUM
  SUP
  SUS
  SUSXM

  SWCH
  SWRCH

  OTHER



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Tool steel
  SK Carbon tool steel
  SKD Alloy tool steel
  SKH High speed tool steel
  SKS Alloy tool steel
  SKT Alloy tool steel
Structural steel
  S Carbon steel
  SACM Low-alloyed steel
  SAPH Hot-rolled steel for automobile structural uses
  SCM Chrome molybdenum steel
  SCr Chrome steel
  SEV Steel for pressure vessels
  SG Steel for welded gas cylinders
  SGV Carbon steel for pressure vessels
  SH Steel for tower structure
  SLA Carbon steel for pressure vessels
  SM Rolled steel for welded structure
  SMn Manganese steel
  SMnC Manganese chromium steel
  SNC Nickel chromium steel
  SNCM Nickel chromium molybdenum steel
  SPC Cold-reduced carbon steel
  SPFC Cold-reduced high strength steel
  SPV Steel for pressure vessels
  SS Rolled steel for general structure
  SSC Light gauge steel
  STAM Electric resistance welded carbon steel
  STK Carbon steel for tubes
  STPA Alloy steel for pipes
  STPG Carbon steel for pipes
  SUJ High carbon chromium bearing steel
  SUM Free-cutting steel
  SUP Spring steel
  SWCH Carbon steels for cold heading
  SWRCH Carbon steels for cold heading
Cast steel
  SC Carbon steel for castings
  SCC Steel for castings
  SCCrM Steel for castings
  SCH Heat-resistant cast steel and alloy
  SCMn Steel for castings
  SCMnCr Steel for castings
  SCMnCrM Steel for castings
  SCMnM Steel for castings
  SCNCrM Steel for castings
  SCS Corrosion-resistant cast steel
  SCSiMn Steel for castings
Corrosion-resisting & heat-resisting steel
  NCF Steel tubes for fired heater
  SMA Atmospheric corrosion resisting steel
  STF Steel tubes for fired heater
  STFA Steel tubes for fired heater
  SUH Heat-resisting steel
  SUS Stainless steel
  SUSXM Stainless steel
OTHER
  OTHER Free-cutting steel

Japanese steel designation system; JIS G steel designation system;
The names of steel grades in Japan; The names of steel grades according JIS standards
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