Grade

Thickness (mm)

Assumed Density (kg/m³)

Resistivity (mW-cm)

Typical Core Loss

Watts/Kilogram

Max. Core Loss

Watts/Kilogram

Magnetic Flux Density

50HZ

50HZ

1.0T

1.5T

1.0T

1.5T

B50

35A200

0.35mm

7.60

59

0.85

1.98

0.90

2.00

1.64

35A210

7.60

59

0.85

2.05

0.90

2.10

1.65

35A230

7.60

55

0.89

2.10

0.95

2.30

1.66

35A250

7.60

54

0.93

2.25

1.00

2.50

1.66

35A270

7.65

54

1.00

2.40

1.10

2.70

1.67

35A300

7.65

51

1.10

2.60

1.20

3.00

1.68

35A360

7.65

47

1.25

2.95

1.45

3.60

1.69

35A440

7.70

38

1.45

3.40

1.80

4.40

1.66

35A550

7.70

34

1.70

3.90

2.25

5.50

1.67

50A230

0.50mm

7.60

59

0.95

2.25

1.00

2.30

1.66

50A250

7.60

55

1.00

2.40

1.05

2.50

1.67

50A270

7.60

55

1.05

2.50

1.10

2.70

1.67

50A290

7.60

54

1.08

2.60

1.15

2.90

1.67

50A310

7.65

54

1.15

2.70

1.25

3.10

1.67

50A350

7.65

51

1.30

3.00

1.50

3.50

1.68

50A400

7.65

47

1.45

3.25

1.70

4.00

1.69

50A470

7.70

38

1.65

3.65

2.00

4.70

1.71

50A600

7.75

32

2.00

4.50

2.60

6.00

1.70

50A700

7.80

28

2.52

5.50

3.00

7.00

1.73

50A800

7.80

24

2.95

6.30

3.60

8.00

1.74

50A1000

7.85

18

3.25

7.20

4.40

10.00

1.75

Available Specification:

Thickness:

0.35mm

0.50mm

0.65mm

Width:

40mm-1290mm

Inner Diameter.

508mm

Outer Diameter.

700-1550mm

Size and Shape Tolerance

Width (mm)

Thick (mm)

Tolerance (mm)

Thickness

Camberness

Width

Linear Measure

Shear Burr

<=150

0.35

(+/-)0.04

<=0.02

(+) 0.3-0

<=1.0

<=0.05

0.5

(+/-)0.04

<=0.03

0.65

(+/-)0.05

<=0.03

>150-500

0.35

(+/-)0.04

<=0.02

(+) 0.5-0

0.5

(+/-)0.04

<=0.03

0.65

(+/-)0.05

<=0.03

>500-1000

0.35

(+/-)0.04

<=0.02

(+) 1.5-0

0.5

(+/-)0.04

<=0.03

0.65

(+/-)0.05

<=0.04

>1000

0.35

(+/-)0.04

<=0.03

(+) 1.5-0

0.5

(+/-)0.04

<=0.04

0.65

(+/-)0.05

<=0.04

Surface Insulation Coating

We provide Type A, H and D of Coatings. Users may select a qualified coating type from them in accordance with

interlamination resistance, sheet punching ability, from resistance, heat resistance and other characteristics.

Coating A: Coating A is a semi-organic thin coating with excellent sheet-punching ability, corrosion resistance, from

Resistance and high lamination resistance. It has extraordinarily excellent weld ability and is suitable for medium and

Small size electric motors and motors for household appliances. It is equivalent to the coat A1of KSC and coating T4

of Wuhan Steel

Coating H: Coating H is a semi-organic thick coating with excellent sheet-punching ability, corrosion resistance, freon

resistance and high lamination resistance. It has extraordinarily excellent weldability and is suitable for medium and

small size electric motors and motors for household appliances which requires higher sheet punching ability It is

equivalent to A1 of KSC and T4 of Wuhan Steel

Coating D: Coating D is an inorganic coating with excellent weldability and heat resistance. It is suitable for medium

and small size electrical motors and especially fit in the application of stress-relief annealing at a high temperature.

It is equivalent to coating C4 of AISI and the coating of T3 of Wuhan Steel

Unless there are specific descriptions,

the surface insulation coatings designed for steel grade are all coating A