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powercore® K grades

Semi-processed powercore® grades display good processing properties in the as-delivered condition. The magnetic properties are developed by annealing the individual stampings or the complete stack at the customer’s plant.

In many cases, the core losses are lower and the polarization values higher than the values specified in the standards.

powercore® – Standard grades, non grain oriented, non-fully finished
according to DIN EN 10 106

Grade NOMINAL THICKNESS DENSITY MAX. CORE LOSS AT MIN. POLARIZATION AT
powercore® mm kg/dm3 50 Hz
1.5 T
W/kg
50 Hz
1.0 T
W/kg
60 Hz
1.5 T
W/lb
60 Hz
1.0 T
W/lb
2500 A/m
T
5000 A/m
T
10000 A/m
T
M340-50K
0.50 7.65 3.40 1.42 1.95 0.82 1.54 1.62 1.72
M390-50K
0.50 7.70 3.90 1.62 2.24 0.93 1.56 1.64 1.74
M450-50K
0.50 7.75 4.50 1.92 2.59 1.10 1.57 1.65 1.75
M560-50K
0.50 7.80 5.60 2.42 3.22 1.39 1.58 1.66 1.76
M660-50K
0.50 7.85 6.60 2.80 3.79 1.61 1.62 1.70 1.79
M890-50K
0.50 7.85 8.90 3.70 5.12 2.13 1.60 1.68 1.78
M1050-50K
0.65 7.85 10.50 4.30 6.04 2.47 1.57 1.65 1.77
M390-65K
0.65 7.65 3.90 1.62 2.24 0.93 1.54 1.62 1.72
M450-65K
0.65 7.70 4.50 1.92 2.59 1.10 1.56 1.64 1.74
M520-65K
0.65 7.75 5.20 2.22 2.99 1.28 1.57 1.65 1.75
M630-65K
0.65 7.80 6.30 2.72 3.62 1.56 1.58 1.66 1.76
M800-65K 0.65 7.85 8.00 3.30 4.60 1.90 1.62 1.70 1.79
M1000-65K 0.65 7.85 10.00 4.20 5.75 2.41 1.60 1.68 1.78

The core loss value at 1.0 T is a reference value and is for information only.

Comparison of standards for powercore® K grades

Grades according to standards, not finally annealed

Nominal thickness
inch
powercore® grade Grade acc. to
DIN EN 10 341
2006
Grade acc. to
DIN EN 10 126
DIN EN 10 165
1996
Grade acc. to
IEC60 404-8 2/3
1988
Grade acc. to
ASTM A 683 M
1984
Grade acc. to
ASTM A 683
Grade acc. to
former AISI designation
0.02 - - - - 47S392M 47S178 M-27
0.02 M 340-50 K M 340-50 K M 345-50 E 340-50-E 5 47S414M/441M 47S188/200 M-36/M-43
0.02 M 390-50 K M 390-50 K M 390-50 E 390-50-E 5 47S507M 47S230 -
0.02 M 450-50 K M 450-50 K M 450-50 E 450-50-E 5 47S551M 47S250 M-45
0.02 M 560-50 K M 560-50 K M 560-50 E 560-50-E 5 47S661M 47S300 -
0.02 M 660-50 K M 660-50 K M 660-50 D 660-50-D 5 - - -
0.02 M 890-50 K M 890-50 K M 890-50 D 890-50-D 5 - - -
0.02 M 1050-50 K M 1050-50 K M 1050-50 D 1050-50-D 5 - - -
0.026 M 390-65 K M 390-65 K M 390-65 E 390-65-E 5 64S470M/507M 64S213/230 M-36/M-43
0.026 M 450-65 K M 450-65 K M 450-65 E 450-65-E 5 64S573M 64S260 -
0.026 M 520-65 K M 520-65 K M 520-65 E 520-65-E 5 64S617M 64S280 M-45
0.026 M 630-65 K M 630-65 K M 630-65 E 630-65-E 5 64S772M 64S350 -
0.026 M 800-65 K M 800-65 K M 800-65 D 800-65-D 5 - - -
0.026 M 1000-65 K M 1000-65 K M 1000-65 D 1000-65-D 5 - - -
0.026 M 1200-65 K M 1200-65 K M 1200-65 D 1200-65-D 5 - -
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