B50A290 Silicon Steel

 

1.Iron loss value

Countries are divided into grades according to the iron loss value, the lower the iron loss, the higher the grade.

2. Magnetic flux density

Magnetic flux density is another important electromagnetic property of silicon steel sheet, which indicates the difficulty of silicon steel sheet being magnetized. In a particular frequency of magnetic field strength, the amount of magnetic flux per unit area is called magnetic flux density. The flux density of a silicon steel sheet is usually measured at a frequency of 50 or 60 Hz and an applied magnetic field of 5000 A/m, called B50, and is measured in Tesla.

The magnetic flux density is related to the collective organization of the silicon steel sheet, impurities, internal stresses and other factors. Magnetic flux density directly affects the energy efficiency of motors, transformers and other motor equipment. The higher the flux density, the greater the flux per unit area, the better the energy efficiency, therefore, the higher the flux density of silicon steel sheet, the better, usually, the specifications require only the minimum value of flux density.

Mechanical Property

Mechanical Property
Grade	Yeild Strength(N/mm2)	Ultra-TensionStrength(N/mm2)	Ductility(%)	Hardness(HV1
M35W230	430	560	20.0	225
M35W250	415	550	20.5	220
M35W270	400	515	20.5	215
M35W300	360	480	21.5	195
M35W360	350	480	23.5	190
M35W440	275	420	27.5	165
M35W550	265	415	33.5	160
M50W250	430	560	19.0	230
M50W270	410	550	21.5	225
M50W290	395	545	22.5	220
M50W310	385	510	24.5	210
M50W350	350	475	26.5	190
M50W400	320	460	36.0	170
M50W470	295	425	35.0	160
M50W600	280	410	37.0	140
M50W800	285	405	38.5	135
M50W1300(D)	250	360	40.0	115

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