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Numbering System for German Steels and Alloys.
Material Numbers (Werkstoffnummer - WNR)


Index to WNR for Steels by Steel Groups and Series of Numbers

    Non-alloy steels 
    1.0000    1.0099    Base steels 
    1.9000    1.9099    Base steels 
            Quality steels 
      1.0100    1.0199    General structural steels, with Rm < 500 MPa
      1.9100    1.9199    General structural steels, with Rm < 500 MPa
      1.0200    1.0299    Other structural steels not intended for heat treatment, with Rm < 500 MPa
      1.9200    1.9299    Other structural steels not intended for heat treatment, with Rm < 500 MPa
      1.0300    1.0399    Steels with average C < 0,12% or Rm < 400 MPa
      1.9300    1.9399    Steels with average C < 0,12% or Rm < 400 MPa
      1.0400    1.0499    Steels with average C >= 0,12% < 0,25% or Rm >= 500 MPa 
      1.9400    1.9499    Steels with average C >= 0,12% < 0,25% or Rm >= 500 MPa 
      1.0500    1.0599    Steels with average C >= 0,25% < 0,55% or Rm >= 500 < 700 MPa
      1.9500    1.9599    Steels with average C >= 0,25% < 0,55% or Rm >= 500 < 700 MPa
      1.0600    1.0699    Steels with average C >= 0,55% or Rm >= 700 MPa 
      1.9600    1.9699    Steels with average C >= 0,55% or Rm >= 700 MPa 
      1.0700    1.0799    Steels with higher P or S content 
      1.9700    1.9799    Steels with higher P or S content 
            Special steels 
      1.1000    1.1099    Steels with special physical properties 
      1.1100    1.1199    Structural pressure vessel and engeneering steels with C < 0,50%
      1.1200    1.1299    Structural pressure vessel and engeneering steels with C >= 0,50% 
      1.1300    1.1399    Structural pressure vessel and engeneering steels with special requirements 
      1.1400    1.1499    Special steels 
      1.1500    1.1899    Tool steels 
      1.1900    1.1999    Special steels 
    Alloy steels 
            Quality steels 
      1.0800    1.0899    Steels with special physical properties 
    1.9800    1.9899    Steels with special physical properties 
      1.0900    1.0999    Steels for other applications 
      1.9900    1.9999    Steels for other applications 
    1.2000    1.2999    Special steels - Tool steels 
      1.2000    1.2099    Cr 
      1.2100    1.2199    Cr-Si, Cr-Mn, Cr-Mn-Si 
      1.2200    1.2299    Cr-V, Cr-V-Si, Cr-V-Mn,Cr-V-Mn-Si 
      1.2300    1.2399    Cr-Mo, Cr-Mo-V, Mo-V 
      1.2400    1.2499    W, Cr-W 
      1.2500    1.2599    W-V, Cr-W-V 
      1.2600    1.2699    W, excluding groups 24,25 and 27 
      1.2700    1.2799    With Ni 
      1.2800    1.2899    Others 
      1.2900    1.2999    Special steels - Tool steels 
    1.3000    1.3999    Special steels - Miscellaneous steels 
      1.3000    1.3099    Special steels - Miscellaneous steels 
      1.3100    1.3199    Special steels - Miscellaneous steels 
      1.3200    1.3299    High speed steel with Co 
      1.3300    1.3399    High speed steel without Co 
      1.3400    1.3499    Special steels - Miscellaneous steels 
      1.3500    1.3599    Bearing steels 
      1.3600    1.3699    Materials with special magnetic properties, without Co 
      1.3700    1.3799    Materials with special magnetic properties, with Co 
      1.3800    1.3899    Materials with special physical properties, without Ni 
      1.3900    1.3999    Materials with special physical properties, with Ni 
    1.4000    1.4999    Special steels - Stainless and heat resisting steels 
      1.4000    1.4099    Stainless steel with < 2,5% Ni without Mo, Nb and Ti
      1.4100    1.4199    Stainless steel with < 2,5% Ni and Mo, but without Nb and Ti
      1.4200    1.4299    Special steels - Stainless and heat resisting steels 
      1.4300    1.4399    Stainless steel with => 2,5% Ni and Mo, but without Mo, Nb and Ti 
      1.4400    1.4499    Stainless steel with <= 2,5% Ni and Mo, but without Nb and Ti
      1.4500    1.4599    Stainless steel with special additions 
      1.4600    1.4699    Chemically resistant and high-temperature Ni alloys 
      1.4700    1.4799    Heat resistant steels with < 2,5% Ni
      1.4800    1.4899    Heat resistant steels with >= 2,5% Ni 
      1.4900    1.4999    Materials with elevated temperature properties 
    1.5000    1.8999    Special steels - Structural, pressure vessel and engineering steels 
      1.5000    1.5099    Mn, Si, Cu 
      1.5100    1.5199    Mn-Si, Mn-Cr 
      1.5200    1.5299    Mn-Cu, Mn-V, Si-V, Mn-Si-V 
      1.5300    1.5399    Mn-Ti, Si-Ti 
      1.5400    1.5499    Mo, Nb, Ti, V, W 
      1.5500    1.5599    B, Mn-B < 1,65% Mn
      1.5600    1.5699    Ni 
      1.5700    1.5799    Cr-Ni, with < 1,0% Cr
      1.5800    1.5899    Cr-Ni, with >= 1,0 < 1,5% Cr
      1.5900    1.5999    Cr-Ni, with >= 1,5 < 2,0% Cr
      1.6000    1.6099    Cr-Ni, with >= 2,0 < 3% Cr
      1.6100    1.6199    Special steels - Structural, pressure vessel and engineering steels 
      1.6200    1.6299    Ni-Sn, Ni-Mn, Ni-Cu 
      1.6300    1.6399    Ni-Mo, Ni-Mo-Mn, Ni-Mo-Cu, Ni-Mo-V, Ni-Mn-V 
      1.6400    1.6499    Special steels - Structural, pressure vessel and engineering steels 
      1.6500    1.6599    Cr-Ni-Mo, with < 0,4% Mo + < 2% Cr
      1.6600    1.6699    Cr-Ni-Mo, with < 0,4% Mo + >= 2,0 <3,5% Ni
      1.6700    1.6799    Cr-Ni-Mo, with < 0,4% Mo + >= 3,5 < 5,0% Ni oder >= 0,4% Mo 
      1.6800    1.6899    Cr-Ni-V, Cr-Ni-W, Cr-Ni-V-W 
      1.6900    1.6999    Cr-Ni except groups 57 bis 68 
      1.7000    1.7099    Cr, Cr-B 
      1.7100    1.7199    Cr-Si, Cr-Mn, Cr-Mn-B, Cr-Si-Mn 
      1.7200    1.7299    Cr-Mo, with < 0,35% Mo, Cr-Mo-B
      1.7300    1.7399    Cr-Mo with >= 0,35% Mo 
      1.7400    1.7499    Special steels - Structural, pressure vessel and engineering steels 
      1.7500    1.7599    Cr-V, with < 2,0% Cr
      1.7600    1.7699    Cr-V, with > 2,0% Cr 
      1.7700    1.7799    Cr-Mo-V 
      1.7800    1.7899    Special steels - Structural, pressure vessel and engineering steels 
      1.7900    1.7999    Cr-Mn-Mo, Cr-Mn-Mo-V 
      1.8000    1.8099    Cr-Si-Mo, Cr-Si-Mn-Mo, Cr-Si-Mo-V, Cr-Si-Mn-V 
      1.8100    1.8199    Cr-Si-V, Cr-Mn-V, Cr-Si-Mn-V 
      1.8200    1.8299    Cr-Mo-W, Cr-Mo-W-V 
      1.8300    1.8399    Special steels - Structural, pressure vessel and engineering steels 
      1.8400    1.8499    Cr-Si-Ti, Cr-Mn-Ti, Cr-Si-Mn-Ti 
      1.8500    1.8599    Nitriding steels 
      1.8600    1.8699    Special steels - Structural, pressure vessel and engineering steels 
      1.8700    1.8799    Steels not for heat treatment by user 
      1.8800    1.8999    Steels not for heat treatment by user (High strength weldable steels) 


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