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summary_of_grades_grain_oriented_electrical_steel

Summary of grades of grain-oriented electrical steel

Stan Zurek, Summary of grades of grain-oriented electrical steel, Encyclopedia Magnetica
https://E-Magnetica.pl/summary_of_grades_grain_oriented_electrical_steel

This page contains examples of several grade naming conventions used in the industry for the grain-oriented electrical steel, and the comparison between them.

Magnetic properties of some of these grades are provided in the Database of Materials.

GO grades

Comparison of GO grades1)2)
JIS C2553
2012
IEC 60404-8-7
2008
IS 3024
2014
EN 10107
2014
BS 601 ASTM A 876
2012
thickness 0.23 mm
23R 080
23R 085
M085-23P5 23HP 85d M080-23N
M085-23P
23M3 23Q 054
23R 090
23P 090
M090-23P5 23HP 90d M090-23P - -
23P 095 M095-23P5 23HP 95 M095-23P - -
23P 100 M100-23P5 23HP 100 M100-23P - 23P 060
thickness 0.27 mm
27R 090 M090-27P5 27HP 90d M089-27N
M090-27P
27M4 27Q 057
27R 095
27P 095
M095-27P5 27HP 95d M095-27P - -
27P 100 M100-27P5 27HP 100 M100-27P
M103-27P
27M0H 27P 066
27P 110 M110-27P5 27HP 110 M110-27P - -
- - - M130-27S 27M3 -
thickness 0.30 mm
30P 100 - - M097-30N
M100-30P
30M5 -
30P 105 M105-30P5 30HP 105 M105-30P 30M0H -
30P 110 M110-30P5 30HP 110 M110-30P
M111-30P
30M1H -
30P 120 M120-30P5 30HP 120 M117-30P 30M2H -
thickness 0.35 mm
35P 115 M115-35P5 35HP 115 M111-35N
M115-35P
35M6 -
35P 125 M125-35P5 35HP 125 M125-35P - -
35P 135 M135-35P5 35HP 135 - - -
thickness 0.50 mm
- - - M175-50N 50M7 -

Naming conventions for grain-oriented electrical steels

Example of BS EN 10107

According to BS EN 10107:20053) the naming convention was as follows:

  • capital letter M for electrical steel
  • maximum specific total loss at 50 Hz in W/kg multiplied by 100, measured at 1.7 T, at the nominal sheet thickness
  • nominal thickness of the sheet in mm multiplied by 100
  • the characteristic letter:
    • S for conventional grain-oriented electrical steel
    • P for high-permeability grain-oriented electrical steel

Example: The name M150-30S denotes electrical steel (M) of the conventional type (S), whose nominal thickness is 0.30 mm (30) and the loss at 1.7 T is 1.50 W/kg (150).

See also

References


3) BS EN 10107:2005, Grain-oriented electrical steel sheet and strip delivered in the fully process state
summary_of_grades_grain_oriented_electrical_steel.txt · Last modified: 2021/10/22 23:50 by stan_zurek

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