Aceros Posco

5/27/2018 Aceros Posco

1/35

Electrical Steel

2010-11-

Made in Korea


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MANUFACTURING PROCESS AND FACILITIES 4

SPECIFICATION & MAIN APPLICATION 6

GRAIN-ORIENTED ELECTRICAL STEEL8

NON-ORIENTED ELECTRICAL STEEL 14

SURFACE INSULATION26

STRESS RELIEF ANNEALING 27

RELATIONS AMONG WEIGHT, OUTSIDE DIAMETER AND WIDTH OF COIL29

MAJOR INTERNATIONAL STANDARDS 30

UNIT CONVERSION TABLES, THE INTERNATIONAL SYSTEM OF UNITS(SI) 32

PACKAGING/MARKING33

GLOBAL NETWORK 34

Contents

>>>


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We move the world in silence

1. Excellent materials

produces the worlds best electrical steel with its outstanding manufacturing technology.

Customers prefer products made of electrical steel because they feature excellent performance

and high energy efficiency.

In particular, domain refined GO made by the latest laser technology are mainly used for an extra-high

voltage transformer which is the most energy efficient in the world.

2. Reliable Quality Control

produces products in the advanced plants and facilities and applied strict quality control

standard to them to provide high-quality materials to customers.

3. Diversified Product Lines

provides various grade of electrical steel to meet each customers needs.

develops a lot of customized materials which are outstanding performers at a high frequency

and show lower core loss after heat treatment to provide the most appropriate materials for use. The

diversified electrical steel is now widely used for high-performance products, like driving

motors of environment-friendly cars.


4/3504 www.posco.com

>> Manufacturing

Process and Facilities

Pickling

Cold Rolling Annealing

Insulation Coating


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Manufacturing process (Grain-oriented electrical steel)

Manufacturing process (Non grain-oriented electrical steel)

05Electrical Steel



Large rotating

machine

Medium rotating

machine

General use

AC motor

Hermetically

sealed motor

Small motor & Intermittent

Service AC motor

Large power

transformer

Medium & small

power transformer

Distribution

transformer

Reactor & magnetic

amplifier

Audio

transformer

Current & potential

transformer

Ballast

Welding

transformer

Static

Machines

Rotating

Machines

Grain-Oriented Non-Oriented

PN-Core PNM-Core PNA-Core PNS-Core PNF-Core

Magnetic

switch core

PHD-

Core

PH-

Core

PG-

Core PN210

-400

PN440

-700

PN800

-1300 PNS250 PNF1500PNA300

-450

PNM500

-540

>> Specification &

Main Application


7/3507Electrical Steel

The usage presented in this section reflects the general use and shall be used as a reference.

Please be sure to consult with our associates when making orders for specific usage.



>>Grain-Oriented

Electrical Steel

PG-Core

The grain's easy magnetization direction is aligned to the rolling direction. Therefore, this product

features excellent magnetic properties in the rolling direction. It is widely used for large-sized power

transformers or mid/small size transformers.

Standard Size

Grade

0.27(0.0106)

0.30(0.0118)

0.35(0.0138)

7.65

1.10

1.20

1.30

1.10

1.20

1.30

1.40

1.45

1.55

0.50

0.54

0.59

0.50

0.54

0.59

0.64

0.66

0.70

1.80

95.0

95.5

96.0

Thickness

mm (in.)

Density

(kg/dm3

) Watt per kilogram Watt per pound

Magnetic Flux

Density.Min

T (B8)

Lamination Factor,

Min(%)

27PG110

27PG120

27PG130

30PG110

30PG120

30PG130

30PG140

35PG145

35PG155

Note: The above test is conducted in accordance to IEC60404-2 (or JIS C 2550-2000).W17/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.7T.Core loss and induction are measured after stress relief annealing in a longitudinal direction.(annealing condition : 840, 1Hr, Under neutral atmosphere)

Product

27PG110

27PG120

27PG130

30PG110

30PG120

30PG130

30PG14035PG145

35PG155

0.27(0.0106)

0.30(0.0118)

0.35(0.0138)

850-1000

(33.46-47.24)

1000(39.37)

1200(47.24)

508(20)

PG-Core

Note: For non-standard sizes, please contact us

Width mm (in.)

Available Standard

Specification

Magnetic properties and lamination factor

GradeThickness

mm (in.)

Inside diameter

mm (in.)

Core Loss, Max (W17/50)



Typical Electrical and Magnetic Property

Grade

0.27(0.0106)

0.30(0.0118)

0.35(0.0138)

7.65 48

1.85

1.851.84

1.85

1.85

1.84

1.84

1.84

1.83

Thickness

mm (in.)

Density

(kg/dm3)

Resistivity

m

(10-8)

27PG110

27PG120

27PG130

30PG110

30PG120

30PG130

30PG140

35PG145

35PG155

Note : Above values are not guaranteed.Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-2000) method, using specimenstaken longitudinal to the rolling and then annealed to develop full magnetic properties.

Core Loss

Watt per kilogram

W15/50

0.76

0.78

0.82

0.80

0.83

0.87

0.90

0.98

1.01

1.05

1.15

1.22

1.08

1.17

1.25

1.32

1.37

1.45

1.01

1.02

1.07

1.05

1.09

1.12

1.17

1.29

1.33

1.37

1.48

1.55

1.48

1.53

1.61

1.70

1.80

1.89

0.35

0.35

0.37

0.36

0.38

0.40

0.41

0.44

0.46

0.48

0.52

0.55

0.49

0.53

0.57

0.60

0.62

0.66

0.46

0.46

0.49

0.48

0.49

0.51

0.53

0.59

0.61

0.62

0.67

0.70

0.67

0.69

0.73

0.77

0.82

0.86

W17/50 W15/60 W17/60

Watt per pound

W15/50 W17/50 W15/60 W17/60

Typical Mechanical Property and Lamination Factor

Thickness

mm (in.)

344

345

364

385

412

423

322

330

345

340

350

357

11

12

10

44

49

40

182

174

181

98.0

99.0

99.5

L C L C L C

Hardness

Hv1

Lamination

Factor

(%)

0.27(0.0106)

0.30(0.0118)

0.35(0.0138)

Note : 1. Tests are conducted in accordance with IEC404-2(or JIS C 2550-2000)2. L : Specimens taken longitudinal to the rolling direction

C : Specimens taken transverse to the rolling direction3. Specimens with 0A coating are used for lamination factor test.

Tensile Strength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)

Dimension & Shape Tolerance

Note : The thickness deviation in width direction means the gap between the thickness of center and the oneof part 15mm away from the edge part.

Width

mm (in.)

0.27(0.0106)

0.30(0.0118)0.35(0.0138)

0.03

(0.0012)

0.03(0.0012)

and under

+0.6(0.0236)

0

1.0(0.0394)

and under

Thickness

mm (in.)

Thickness Tolerance

mm (in.)

Thickness deviation in

transverse direction

mm (in.)

Width Tolerance

mm (in.)

Camber

(Length : 2m)

mm (in.)

850 and over

(33.46)

MagneticFlux Density.

T(B8)



Standard Size

Specification

Product

23PH085

23PH090

23PH095

23PH100

27PH095

27PH100

27PH110

30PH100

30PH105

0.23(0.0091)

0.27(0.0106)

0.30(0.0118)

850-1200

(33.46-47.24)

1000(39.37)

1200(47.24)

508(20)

GradeThickness

mm (in.) Available Standard

Inside Diameter

mm (in.)

PH-Core

Note: For non-standard sizes, please contact us.

Note: The above test is conducted in accordance to IEC60404-2 (or JIS C 2550-2000).W17/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.7T.Core loss and induction are measured after stress relief annealing in a longitudinal direction.(annealing condition : 840, 1Hr, Under neutral atmosphere)

Grade

0.23

(0.0091)

0.27

(0.0106)

0.30

(0.0118)

7.65

0.85

0.90

0.95

1.00

0.95

1.00

1.10

1.00

1.05

0.39

0.41

0.43

0.45

0.43

0.45

0.50

0.45

0.48

1.88

94.5

95.0

95.5

Thickness

mm (in.)

Density

(kg/d)

Lamination

Factor, Min(%)

23PH085

23PH090

23PH095

23PH100

27PH095

27PH100

27PH110

30PH100

30PH105


Width mm (in.)

PH-Core

The directional property of grain-oriented electrical steel is more reinforced in the rolling direction than

PG-Core and therefore features low core loss and high induction. It is used for iron core of both large and

other size power transformers and desirable for high efficiency and miniaturization of machinery.

Core Loss, Max (W17/50)

Watt per kilogram Watt per pound

Magnetic FluxDensity.Min

T (B8)




Width

mm (in.)

0.23(0.0091)

0.27(0.0106)

0.30(0.0118)

0.03(0.0012)0.03(0.0012)

and under

+0.6(0.0236)

0

1.0(0.0394)

and under

Thicknessmm (in.)

ThicknessTolerancemm (in.)

Thickness deviation intransverse direction

mm (in.)

WidthTolerancemm (in.)

Camber(Length : 2 m)

mm (in.)

850 and over

(33.46)

Note : The thickness deviation in width direction means the gap between the thickness of center and the one of part15mm away from the edge part.


Thickness

mm (in.)

381

361

345

424

415

412

356

337

330

383

367

358

18

18

20

42

42

45

178

182

184

98

98

99

L C L C L C

Hardness

Hv1

Lamination

Factor

(%)

0.23(0.0091)

0.27(0.0106)

0.30(0.0118)

Note : 1. Tests are conducted in accordance with IEC404-2(or JIS C 2550-2000)2. L : Specimens taken longitudinal to the rolling direction

C : Specimens taken transverse to the rolling direction3. Specimens with 0A coating are used for lamination factor test.

Tensile Strength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)


Grade

23PH085

23PH09023PH095

23PH100

27PH095

27PH100

27PH110

30PH100

30PH105

Note : Above values are not guaranteed.Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-2000) method, using specimens taken

longitudinal to the rolling and then annealed to develop full magnetic properties.

Core Loss(W/kg)


W15/50 W17/50 W15/60 W17/60 W15/50 W17/50 W15/60 W17/60

0.23(0.0091)

0.27

(0.0106)

0.30

(0.0118)

7.65 48

0.62

0.640.65

0.70

0.70

0.72

0.78

0.74

0.76

0.83

0.880.90

0.95

0.93

0.97

1.03

0.99

1.01

0.81

0.850.86

0.92

0.92

0.95

1.01

0.98

1.00

1.10

1.151.17

1.26

1.23

1.27

1.37

1.29

1.33

0.28

0.290.30

0.32

0.32

0.33

0.35

0.34

0.35

0.38

0.400.41

0.43

0.42

0.44

0.47

0.45

0.46

0.37

0.390.39

0.42

0.42

0.43

0.46

0.44

0.45

0.50

0.520.53

0.57

0.55

0.58

0.62

0.59

0.60

1.91

1.911.91

1.90

1.91

1.90

1.90

1.91

1.90

Thickness

mm (in.)

Density

(kg/dm3)

Resistivity

m

(10-8)

MagneticFlux

Density.T (B8)



PHD-Core

Magnetic domain refined steel is a grade that has been specially laser treated to lower the core loss

some 30% from that of CGO steel. Energy efficiency is raised and magnetostriction is lowered, resulting

in low noise. . It is used for iron core of both large and other size power transformers that have not been

heat treated.

Standard Size

Product

23PHD080

23PHD085

27PHD090

27PHD095

30PHD095

0.23(0.0091)

0.27(0.0106)

0.030(0.0118)

850-1000

(33.46-39.37)

1000

(39.37)

508

(20)

Grade Thicknessmm (in.) Available Standard Inside diametermm (in.)

PHD-Core


Width mm (in.)

Note: The above test is conducted in accordance to IEC60404-3 (or JIS C 2556), using as-sheared specimens inlongitudinal to rolling direction, without stress relief annealing.W17/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.7T.

Grade

0.23(0.0091)

0.27(0.0106)

0.030(0.0118)

7.65

0.80

0.85

0.90

0.95

0.95

0.36

0.39

0.41

0.43

0.43

1.88

1.88

94.5

95.0

95.5

Thickness

mm (in.)

Density

(kg/dm3) Watt per kilogram Watt per pound

Lamination

Factor, Min(%)

23PHD080

23PHD085

27PHD090

27PHD095

30PHD095

Specification

Magnetic properties and lamination factor.


Width

mm (in.)

0.23(0.0091)

0.27(0.0106)

0.30(0.0118)

0.03

(0.0012)

0.03(0.0012)

and under

+0.6(0.0236)

0

1.0(0.0394)

and under

Thickness

mm (in.)

Thickness

Tolerance

mm (in.)



mm (in.)

Width

Tolerance

mm (in.)

Camber

(Length : 2 m)

mm (in.)

850 and over

(33.46)


Core Loss, Max(W17/50) Magnetic FluxDensity.Min

T (B8)




Thickness

mm (in.)

381

361

345

424

415

412

356

337

330

383

367

358

14

11

12

49

44

49

176

185

183

99.0

98.5

99.0

L C L C L C

0.23(0.0091)

0.27(0.0106)

0.30(0.0118)

Note : 1. Tests are conducted in accordance with IEC404-2(or JIS C 2550-2000)

2. L : Specimens taken longitudinal to the rolling direction

C : Specimens taken transverse to the rolling direction

3. Specimens with 0A coating are used for lamination factor test.

Tensile Strength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)Hardness

Hv1

Lamination

Factor

(%)


Grade

23PHD080

23PHD085

27PHD090

27PHD095

30PHD095

Core Loss


W15/50 W17/50 W15/60 W17/60 W15/50 W17/50 W15/60 W17/60

0.23(0.0091)

0.27(0.0106)

0.30(0.0118)

7.65 48

0.57

0.59

0.64

0.66

0.68

0.77

0.80

0.87

0.91

0.93

0.75

0.78

0.85

086

0.91

1.01

1.05

1.14

1.18

1.23

0.26

0.27

0.29

0.30

0.31

0.35

0.36

0.40

0.41

0.42

0.34

0.35

0.39

0.39

0.41

0.46

0.48

0.52

0.54

0.56

1.91

1.91

1.91

1.91

1.91

Thickness

mm (in.)

Density

(kg/dm

3

)

Resistivity

m

(

10

-8

)

MagneticFlux

Density.T

(B8)

Note : Above values are not guaranteed.

Tests are conducted in accordance with IEC60404-3 (or JIS C 2556-1996) method, using specimens in

longitudinal to rolling direction.


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>>Non-oriented

Electrical Steel

PN-Core

The non-oriented electrical steel features even magnetic properties in the rolling direction and in other directions.

They are widely used for iron core materials of rotating machines ranging from large-size power generators to

small-size precision electric motors. They are also desirable for iron core of small-size power transformers.

Standard Size


Product Grade Thickness


Inside Diameter

mm (in.)

35PN210, 35PN230, 35PN250, 35PN270, 35PN300

50PN250, 50PN270, 50PN290, 50PN310, 50PN350

65PN290, 65PN310, 65PN350

35PN360, 35PN440

50PN400, 50PN470, 50PN600, 50PN700, 50PN800,

50PN1000, 50PN1300

65PN600, 65PN700, 65PN800, 65PN1000, 65PN1300

950~1200(37.40-47.24)

950~1250(37.40-49.21)

1000(39.37)

1100(43.31)

1200(47.24)

508(20)

PN-Core

(Coil)

Width mm (in.)


Grade

0.35

(0.0138)

7.60

7.60

7.60

7.65

7.65

7.65

7.70

2.10

2.30

2.50

2.70

3.00

3.60

4.40

0.95

1.04

1.14

1.23

1.36

1.63

2.00

1.62

1.62

1.62

1.62

1.62

1.63

1.65

95.0

35PN210

35PN230

35PN250

35PN270

35PN300

35PN360

35PN440

Specification

0.35(0.0138)

0.50(0.0197)

0.65(0.0256)

0.35

(0.0138)

0.50(0.0197)

0.65(0.0256)

Thickness

mm (in.)

Density

(kg/dm3)

Magnetic Flux

Density.Min

T

(B50)

Lamination

Factor,

Min

(%)

Core Loss. Max (W15/50)


14 www.posco.com


15/35



Width

mm (in.)

0.35(0.0138)

0.50(0.0197)

0.65(0.0256)

0.35(0.0138)

0.50(0.0197)

0.65(0.0256)

0.035(0.00138)

0.040(0.00158)

0.052(0.00205)

0.035(0.00138)

0.040(0.00158)

0.052(0.00205)

0.02(0.0008) and under

0.03(0.0012) and under

0.04(0.0016) and under

0.03(0.0012) and under

0.04(0.0016) and under

0.04(0.0016) and under

+1.5(0.0591)

0

+1.5(0.0591)

0

1.0(0.0394)

and under

Thickness

mm (in.)

Thickness

Tolerance

mm (in.)



mm (in.)

Width

Tolerance

mm (in.)

Camber

(Length : 2 m)

mm (in.)

1000(39.37)

and under

1000(39.37)

and over

Grade

0.50

(0.0197)

0.65

(0.0256)

7.60

7.60

7.60

7.65

7.65

7.65

7.70

7.75

7.80

7.85

7.85

7.85

7.60

7.65

7.65

7.65

7.70

7.75

7.80

7.85

7.85

7.85

2.50

2.70

2.90

3.10

3.50

4.00

4.70

6.00

7.00

8.00

10.00

13.00

2.90

3.10

3.50

4.00

4.70

6.00

7.00

8.00

10.00

13.00

1.14

1.23

1.32

1.41

1.59

1.82

2.13

2.72

3.18

3.63

4.54

5.90

1.32

1.41

1.59

1.82

2.13

2.72

3.18

3.63

4.54

5.90

1.62

1.62

1.62

1.62

1.62

1.63

1.64

1.66

1.70

1.70

1.70

1.70

1.62

1.62

1.62

1.63

1.64

1.66

1.70

1.70

1.70

1.70

96.0

97.0

50PN250

50PN270

50PN290

50PN310

50PN350

50PN400

50PN470

50PN600

50PN700

50PN800

50PN1000

50PN1300

65PN290

65PN310

65PN350

65PN400

65PN470

65PN600

65PN700

65PN800

65PN1000

65PN1300

Thickness

mm (in.)

Density

(kg/dm3)

Magnetic FluxDensity.Min

T

(B50)

LaminationFactor,

Min

(%)



Note: The above test is conducted in accordance to IEC60404-2 (or JIS C 2550-2000).W15/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.5T.

15Electrical Steel




Grade

0.35

(0.0138)

0.50

(0.0197)

0.65

(0.0256)

7.60

7.60

7.60

7.65

7.65

7.65

7.70

7.60

7.60

7.60

7.65

7.65

7.65

7.70

7.75

7.80

7.85

7.857.85

7.65

7.70

7.75

7.80

7.85

7.85

7.85

59

59

55

52

45

45

42

59

59

56

53

50

45

42

34

30

17

1717

45

42

34

30

17

17

17

0.84

0.89

0.96

1.02

1.08

1.25

1.39

1.00

1.05

1.09

1.21

1.30

1.41

1.64

1.98

2.62

2.93

3.203.75

1.63

1.91

2.27

3.02

3.38

3.64

4.32

2.04

2.10

2.25

2.40

2.53

2.80

3.08

2.37

2.50

2.60

2.70

2.93

3.18

3.55

4.40

5.55

6.26

6.807.56

3.70

4.16

5.14

6.47

7.28

7.86

8.79

1.03

1.07

1.17

1.28

1.38

1.55

1.73

1.31

1.35

1.45

1.55

1.63

1.82

2.06

2.49

3.30

3.63

4.104.75

2.23

2.59

3.09

4.06

4.56

5.00

5.83

2.53

2.60

2.85

3.00

3.18

3.45

3.82

3.08

3.22

3.35

3.46

3.74

4.01

4.56

5.63

7.03

7.94

8.629.54

4.85

5.45

6.68

8.33

9.39

10.14

11.29

0.38

0.40

0.43

0.46

0.49

0.57

0.63

0.45

0.48

0.50

0.55

0.59

0.64

0.74

0.90

1.19

1.33

1.451.70

0.74

0.87

1.03

1.37

1.53

1.65

1.96

0.93

0.95

1.02

1.09

1.15

1.27

1.40

1.08

1.14

1.18

1.23

1.33

1.44

1.61

2.00

2.52

2.84

3.093.43

1.68

1.89

2.33

2.94

3.30

3.57

4.00

0.47

0.49

0.53

0.58

0.63

0.70

0.79

0.59

0.61

0.65

0.70

0.74

0.83

0.94

1.13

1.50

1.65

1.862.16

1.01

1.18

1.40

1.84

2.07

2.27

2.65

0.17

0.18

0.20

0.21

0.22

0.26

0.29

1.40

1.46

1.52

1.57

1.70

1.82

2.07

2.56

3.19

3.60

3.914.33

2.20

2.47

3.03

3.78

4.26

4.60

5.13

1.56

1.57

1.57

1.58

1.59

1.59

1.62

1.57

1.57

1.58

1.59

1.60

1.61

1.61

1.62

1.64

1.66

1.671.67

1.62

1.62

1.63

1.65

1.67

1.68

1.68

1.65

1.66

1.66

1.67

1.69

1.69

1.71

1.67

1.67

1.67

1.68

1.69

1.70

1.70

1.71

1.72

1.74

1.751.75

1.70

1.70

1.72

1.73

1.75

1.75

1.75

35PN210

35PN230

35PN250

35PN270

35PN300

35PN360

35PN440

50PN250

50PN270

50PN290

50PN310

50PN350

50PN400

50PN470

50PN600

50PN700

50PN800

50PN1000

50PN1300

65PN400

65PN470

65PN600

65PN700

65PN800

65PN1000

65PN1300

Thickn

ess

mm

(in.)

Density

(kg/dm3)

Resistivity

m

(10-8)Watt per kilogram Watt per pound

W10/50 W15/50 W10/60 W15/60 W10/50 W15/50 W10/60 W15/60

B25 B50

Core Loss Magnetic FluxDensity. (T)

Note : Above values are not guaranteed.W15/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.5T.Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-2000) method.




Grade

0.35(0.0138)

0.50

(0.0197)

0.65

(0.0256)

538

535

522467

456

450

405

550

535

510

483

470

465

415

395

385

375

370

350

499

480

420

395

375

370

350

547

545

539485

469

470

415

570

550

530

505

489

482

420

405

395

385

380

360

490

490

430

405

385

380

360

415

393

370347

336

350

273

413

406

370

355

344

352

265

260

270

270

265

250

320

300

295

275

270

265

260

427

403

385361

351

366

285

426

460

386

361

354

365

375

270

280

280

275

260

340

315

305

285

280

275

270

18

19

1921

21

23

27

20

22

23

25

25

27

34

37

38

39

40

42

24

28

30

35

41

43

45

19

20

2123

23

25

29

22

23

25

28

28

30

36

39

39

40

41

43

26

29

31

37

43

45

4

220

216

214190

188

170

150

223

205

195

189

189

183

143

130

120

115

113

105

170

160

150

118

113

110

110

97.5

98.0

98.0

Thickness

mm (in.)L C L C L C

Hardness

Hv1

Lamination

Factor

(%)

35PN210

35PN230

35PN250

35PN270

35PN300

35PN360

35PN440

50PN250

50PN270

50PN290

50PN310

50PN350

50PN400

50PN470

50PN600

50PN700

50PN800

50PN1000

50PN1300

65PN400

65PN470

65PN600

65PN700

65PN800

65PN1000

65PN1300

Note : 1. L : Specimens taken longitudinal to the rolling direction


3. Specimens with C-6A coating are used for lamination factor test.

Tensile Stength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)



PNM-Core

The non-oriented electrical steel features even magnetic properties in the rolling direction and in other

directions. It is utilized as steel material for magnetic switches and improved in wear resistance and

residual magnetism.

Standard Size

Specification

Product

65PNM540

70PNM500

GradeThickness


Inside Diameter

mm (in.)

PNM-Core

(Coil)


Width mm (in.)

Note : The above test is conducted in accordance to IEC404-2 (or JIS C 2550-2000), using as-sheared specimensone half longitudinal and one half transverse to the rolling direction.

Grade

0.65

(0.0256)

0.70

(0.0276)

7.70

7.65

1.66

1.65

97.0

97.0

5.40

5.00

2.45

2.63

65PNM540

70PNM500

Magnetic properties and lamination factors.



Width

mm (in.)

0.65(0.0256)

0.70(0.0276)

0.65(0.0256)

0.70(0.0276)

0.052(0.00205)

0.056(0.00221)

0.052(0.00205)

0.056(0.00221)

0.04(0.0016)and under

0.04(0.0016)and under

+1.5(0.0591)0

+1.5(0.0591)

0

1.0(0.0394)

and under

Thickness

mm (in.)

Thickness

Tolerance

mm (in.)



mm (in.)

Width Tolerance

mm (in.)

Camber

(Length : 2m)

mm (in.)

1000(39.37)and under


0.65

(0.0256)

0.70

(0.0276)

950~1200

(37.40-47.24)

1000(39.37)1050(41.34)1100(43.31)

508(20)



Thickness

mm (in.)

Density

(kg/dm3)

Magnetic Flux

Density.Min

T

(B50)

Lamination

Factor,

Min

(%)




Grade

0.65

(0.0256)

0.70

(0.0276)

437

495

452

503

300

356

315

371

32

37

33

39

155

173

98.0

Thickness

mm (in.)L C L C L C

Hardness

(Hv1)

Lamination

Factor

(%)

65PNM540

70PNM500

Tensile Stength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)

Note : 1. L : Specimens taken longitudinal to the rolling direction




Note : Above values are not guaranteed.

Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-2000) method.

Grade

0.65

(0.0256)

0.70

(0.0276)

7.70

7.65

42

44

1.80

1.72

3.72

3.63

2.27

2.18

4.81

4.78

0.82

0.78

1.69

1.65

1.03

0.99

2.18

2.17

1.65

1.61

1.73

1.70

65PNM540

70PNM500

Thickn

ess

mm(in.)

Density

(kg/dm3)

Resistivity

m(10-8) Watt per kilogram Watt per pound

W10/50 W15/50 W10/60 W15/60 W10/50 W15/50 W10/60 W15/60

B25 B50

Core LossMagnetic Flux

Density.Min

(T)



PNF-Core

PNF-Core features good magnetic properties in high frequency where eddy current loss extremely

increase.

Standard Size

Product

20PNF15000.20

(0.0080)

950~1200

(37.40-47.24)

1000

(39.37)

508

(20)

GradeThickness


Inside Diameter

mm (in.)

PNF-Core

(Coil)


Width mm (in.)

Note: The above test is conducted in accordance to IEC60404-2 (or JIS C 2550-2000), using as-sheared specimensone half longitudinal and one half transverse to the rolling direction.W10/400 indicates the core loss at the frequency of 400 Hz, magnetic flux density of 1.0T.B50 indicates magnetic flux density at 5000A/m

Grade

0.20

(0.0080)7.65 15.0 6.80 1.62 93.0

Thickness

mm (in.)

Density


Lamination

Factor , Min(%)

20PNF1500

Specification


Dimension & Shape Tolerance.

Width

mm (in.)

0.20(0.0080)

0.20(0.0080)

0.020

0.020

0.02(0.0008)

and under

0.03(0.0012)

and under

+1.5(0.0591)

0

+1.5(0.0591)

0

1.0(0.0394)

and under

Thickness

mm (in.)

Thickness

Tolerance

mm (in.)



mm (in.)

Width Tolerance

mm (in.)

Camber

(Length : 2m)

mm (in.)

1000(39.37)

and under

1000(39.37)

and over


Core Loss , Max (W10/400) Magnetic FluxDensity.Min

T(B50)




Grade

20PN

F1500

Note : Above values are not guaranteed.W10/400 indicates the core loss at the frequency of 400 Hz, magnetic flux density of 1.0T.Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-2000) method,

Core Loss


W10/50 W15/50 W10/60 W15/60 W10/50W10/400 W10/400W15/50 W10/60 W15/60 B50B25

50 1.24 2.71 1.53 3.28 12.8 0.56 1.23 0.69 1.49 5.76 1.55 1.66

Density

(kg/

dm3)

Thickn

ess

mm

(in.)

0.20

(0.0080) 7.65

Resist

ivity

m(

108)

Magnetic Flux

Density.Min

(T)

20PNF1500

35PN210

35PN440

Comparison of Core Loss with Frequency

100

80

60

40

20

50100 200 400 600 800 1000 1200

Core Loss

(at 1.0Tesla)

(W/kg)

PNF Steel has 30% better W10/400 compared to 35PN210

Motor of

Premium

Slim Spindle

motor of ODD


Grade

0.20

(0.0080) 471 490 363 381 16 19 195 97.0

L C L C L C

Hardness

(Hv1)

Lamination

Factor

(%)

20PNF1500

Note : 1. L : Specimens taken longitudinal to the rolling directionC : Specimens taken transverse to the rolling direction


Thickness

mm (in.)

Tensile Stength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)

(Hz)



PNA-Core

PNA-Core features lower core loss, high induction after SRA and good punchability.

Standard Size

Product

50PNA300

50PNA350

50PNA450

0.50

(0.0197)

950~1200

(37.40-47.24)

1000

(39.37)

1050

(41.34)

1100

(43.31)

508

(20)

GradeThickness


Inside Diameter

mm (in.)

PNA-Core

(Coil)


Width mm (in.)

Specification



Width

mm (in.)

0.5(0.0197)

0.5(0.0197)

0.040

(0.00158)

0.040

(0.00158)

0.03(0.0012)and under

0.04(0.0016)

and under

+1.5(0.0591)0

+1.5(0.0591)

0

1.0(0.0394)and under

Thickness

mm (in.)

Thickness

Tolerance

mm (in.)



mm (in.)

Width

Tolerance

mm (in.)

Camber

(Length 2m)

mm (in.)


1000(39.37)

and under


Grade

7.75 3.0 1.36 1.70 96.0

0.50(0.0197)

7.75 3.5 1.59 1.70 96.0

7.80 4.5 2.13 1.70 96.0

Thickness

mm (in.)

Density

(kg/dm3

) Watt per kilogram Watt per pound

Lamination

Factor , Min(%)

50PNA300

50PNA350

50PNA450

Core Loss, Max (W15/50) Magnetic Flux

Density.Min T(B50)

Note: The above test is conducted in accordance to IEC60404-2 (or JIS C 2550-2000), using as-sheared specimensone half longitudinal and one half transverse to the rolling direction. Core loss and induction are measured afterstress relief annealing.(Annealing condition : 750, 2Hr, under neutral atmosphere)W15/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.5T.



1.8

1.7

2.5 3.0 3.5

B50(T)

High Induction

50PNA300 50PNA350 50PN400 50PN470

200

180

160

140

120

Hardness(Hv1)

Punchability

Better

Through higher induction and punchability, PNA-core features higher efficiency of products and longer

life of dies.

[High Efficient RefridgeratorCompressor Motor]

[High Efficient AirconCompressor Motor]


Grade

0.50

(0.0197)

0.50

(0.0197)

0.50

(0.0197)

402

382

380

415

401

381

260

268

269

269

278

270

37

36

39

39

38

39

141

124

117

98.0

L C L C L C

Hardness

(Hv1)

Lamination

Factor

(%)

50PNA300

50PNA350

50PNA450



Thickness

mm (in.)

Tensile Stength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)


Grade

50PNA300

50PNA350

50PNA450

Note : Above values are not guaranteed.W15/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.5T.Tests were conducted in accordance with IEC60404-2 (or JIS C 2550-2000) method, after stress reliefannealing.(Annealing condition : 750 (1380) 2 Hr under neutral at mosphere.)

Core Loss


W10/50 W15/50 W10/60 W15/60 W10/50 W15/50 W10/60 W15/60 B25 B50

0.50

(0.0197)

0.50

(0.0197)0.50

(0.0197)

37

33

25

1.29

1.36

1.73

2.70

3.05

3.89

1.72

1.83

2.22

3.71

3.91

5.11

0.59

0.62

0.79

1.35

1.38

1.77

0.78

0.83

1.01

1.68

1.77

2.32

1.66

1.67

1.63

1.73

1.74

1.72

Thickn

ess

mm

(in.)

Density

(kg/dm3)

Magnetic Flux

Density.Min

(T)

W15/50(W/kg)

Magnetic Property and Puncturbility Comparison (PNA-Core VS PN-Core)



PNS-Core

PNS-Core features lower core loss, high induction and good punchability with lower hardness

Standard Size

Product

35PNS250

GradeThickness


Inside Diameter

mm (in.)

PNS-Core

(Coil)


Width mm (in.)

0.35

(0.0138)

950~1200

(37.40-47.24)

1000

(39.37)

1050

(41.34)

1100

(43.31)

508

(20)

Note: The above test is conducted in accordance to IEC60404-2 (or JIS C 2550-2000), using as-sheared specimensone half longitudinal and one half transverse to the rolling direction.W15/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.5T.

Grade

0.35

(0.0138)7.60 2.5 1.14 1.63 95.0

Thickness

mm (in.)

Density


Lamination

Factor , Min(%)

35PNS250

Specification


Core Loss , Max (W15/50)


Width

mm (in.)

0.35(0.0138)

0.35

(0.0138)

0.035(0.00138)

0.035(0.00138)

0.02(0.0008)and under

0.03(0.0012)

and under

+1.5(0.0591)0

+1.5(0.0591)0

1.0(0.0394)and under

Thickness

mm (in.)

Thickness

Tolerance

mm (in.)



mm (in.)

Width

Tolerance

mm (in.)

Camber

(Length : 2m)

mm (in.)


1000(39.37)

and over


Magnetic Flux

Density.Min T(B50)




Grade

35PNS250

Note : Above values are not guaranteed.W15/50 indicates the core loss at the frequency of 50 Hz, magnetic flux density of 1.5T.Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-2000) method.

Core Loss


W10/50 W15/50 W10/60 W15/60 W10/50 W15/50 W10/60 W15/60 B25 B50

0.35

(0.0138) 56 0.98 2.25 1.22 2.83 0.45 1.02 0.55 1.29 1.57 1.66

Thickn

ess

mm(in.)

Density

(kg/dm3

)

Magnetic Flux

Density.Min

(T)


Grade

0.35

(0.0138) 442 445 330 332 23 25 186 98.0

L C L C L C

Hardness

(Hv1)

Lamination

Factor

(%)

35PNS250



Thickness

mm (in.)

Tensile Stength

(N/mm2)

Yield Point

(N/mm2)

Elongation

(%)



Types and Features of Surface Insulation

>> Surface Insulation

Inorganic

1.5~2.0

15

1595.0

Notrecogniozed

Notrecogniozed

Notrecogniozed

-

-

-

- - excellent good excellent good Notallowed

Curreent : 100150A

Ar 99% flow1020L/minSpeed

0.250.50mpm

ASTM A 717

SRA condition : 750C2hrs. in DX rich gas1.0MPa 0.05 in Pressure (JIS C 2550)

15524hr in Air

750C2hrs.

in DX rich gas

65 , 95% humidity,

72 Hr

ISO 1519

ASTM D3359B

[0B (poor) ~ 5B

(excellent)] SRA:

R-134a/Freol @15C =

65g/100g

(130, 21day,0.45

filter paper)

GO NO

Notice

Applied Spec

Composition

Thickness (um)

Resistivity

(cm2/sheet)

Heat resistance

flaking after SRA

Weathering (powdering)

Adhesion(mm)

Resistance

to

refrigerants

Weldability

Lamination Factor (%)

Note: 1) Please designate surface insulation according to usage. Regarding coating properties, please contact us.2) The coating thickness value and the resistivity is typical value, not guaranteed.

General

Eco-

friendly

0A GS

General

C-6A

Eco-friendly

NS NM NTC-9A

GO NO

Brfore SRA

After SRA

Brfore SRA

(Mandrel bend

tester)

30

Inorganic

1.5~2.0

15

1595.0

Notrecogniozed

Notrecogniozed

Notrecogniozed

-

-

-

30

Inorganic+organic

0.5~1.0

0.5

0.198.0

Notrecogniozed

Notrecogniozed

Notrecogniozed

5B

Notrecogniozed

Notrecogniozed

10

Inorganic+organic

1.2~1.8

5.0

0.598.0

Notrecogniozed

Notrecogniozed

Notrecogniozed

5B

Notrecogniozed

Notrecogniozed

10

Inorganic+organic

0.5~1.0

0.5

0.198.0

Notrecogniozed

Notrecogniozed

Notrecogniozed

5B

Notrecogniozed

Notrecogniozed

10

Inorganic+organic

1.2~1.8

5.0

0.598.0

Notrecogniozed

Notrecogniozed

Notrecogniozed

5B

Notrecogniozed

Notrecogniozed

10

Inorganic+organic

5.0~7.0

100

SRA Not Accepted

97.0

SRA NotAccepted

SRA NotAccepted

Notrecogniozed

5B

-

-

20

After

SRA(Cross cut

tester)

Change of

surface

Change of

weight



>> Stress Relief

Annelaing

If the annealing temperature is too low, it is difficult to acquire adequate magnetic properties and if the

temperature is too high, it may erode surface insulation and degrade insulation properties. The

optimum annealing temperature for grain-oriented electrical steel is 780C to 840C and 750C to 800

C for non-oriented electrical steel for improved magnetism.

Stress relief annealing is a process that is carried out to acquire desired magnetic properties of electrical

steel sheets by relieving stress generated in the process of shearing and punching at a proper

temperature for a certain period of time.

Annealing Temperature

Annealing time means the in-furnace time of materials at the highest temperature during the annealingprocess. During this time, the materials in the furnace should be evenly heated. The annealing time

varies depending upon amount of materials or type of furnace. Generally, the annealing time is

between 1.5 to 2.5 hours.

Annealing Time

Abrupt heating and cooling must be avoided to prevent any deformation of the iron core. Slow cooling

must be applied until it reaches 300~350C before air cooling is applied.

Heating and Cooling Speed

Furnace atmosphere should be controlled to minimize carburization or oxidization which can diminish

magnetic properties. Therefore a pure nitrogen atmosphere is ideal and the dew point of gas should

be maintained as low as possible, below 0C is adequate. The oil used in shearing and punching

should be removed completely. Otherwise both sides of piled-up core will be damaged during the

annealing process, deteriorating the work capacity.

Furnace Atmosphere



Water is condensed on the steel surface in certain temperature and humidity in store place and steel is likely to getrusty.Ex) In a place of 25, humidity 80%, water is condensed when temp decrease to 22.

Condensed Water on steel surface Graph according to Humidity and Temperature

Reference for rust

10%

20%

30%

40%

50%

60%

70%

80%

90%

450

400

350

300

250

200

150

100

50 0

0

5

10

15

20

25

30

35

40

45

Hu

midity(%)

Temp()

Dew

Point

CondensedWaterZone



>> Relation Among Weight, Outside

Diameter And Width of Coil

Note : Inner diameter is 20inch (508mm)



>> Major International

Standards

Grain-Oriented Electrical Steel

Thickness

mm

(inch)

POSCO

(2006)

W/kg

17/50

JIS C 2553

(2000)

W/kg

17/50

ASTM

(1999)

W/kg

17/60

EN10107

(1995)

W/kg

17/50

0.23

(0.0091)

0.27

(0.0106)

0.30

(0.0118)

23PHD085 0.85

23PH090 0.90

23PH095 0.95

23PH100 1.00

27PHD090 0.90

27PH095 0.95

27PH100 1.00

27PH110 1.10

27PG120 1.20

27PG130 1.30

30PH100 1.00

30PH105 1.05

30PG130 1.30

30PG140 1.40

35PG145 1.45

35PG155 1.55

23R085 0.85

23P090 0.90

23P095 0.95

23P100 1.00

27R090 0.90

27P100 1.00

27P110 1.10

27G120 1.20

27G130 1.30

30P105 1.05

30P110 1.10

30P120 1.20

30G130 1.30

30G140 1.40

35G145 1.45

35G155 1.55

23Q054 1.19

23P060 1.32

27P066 1.46

27H074 1.63

30H083 1.83

35H094 2.07

M100-23P 1.00

M103-27P 1.03

M130-27S 1.30

M105-30P 1.05

M111-30P 1.11

M117-30P 1.17

M140-30S 1.40

M150-35S 1.50

0.35

(0.0138)

Note : The core loss of POSCO products is the maximum guarantee value at 1.7T and 50Hz

The product standards are subject to change. Please be sure to confirm the recent standards when

making orders or to consult our associates.


31/35

Non-Oriented Electrical Steel

Thickness

mm

(inch)

35PN210 2.10

35PN230 2.30

35PN250 2.50

35PN270 2.70

35PN300 3.00

35PN360 3.60

35PN440 4.40

35A210 2.10

35A230 2.30

35A250 2.50

35A270 2.70

35A300 3.00

35A360 3.60

35A440 4.40

36F145 3.20

36F155 3.42

36F175 3.86

36F205 4.52

M235-35A 2.35

M250-35A 2.50

M270-35A 2.70

M300-35A 3.00

POSCO

(2006)

W/kg

15/50

JIS C 2552

(2000)

W/kg

15/50

ASTM

(1999)

W/kg

15/60

EN10106

(1995)

W/kg

15/50

0.35

(0.0138)

50PN250 2.50

50PN270 2.70

50PN290 2.90

50PN310 3.10

50PN350 3.50

50PN400 4.00

50PN470 4.70

50PN600 6.00

50PN700 7.00

50PN800 8.00

50PN1000 10.00

50PN1300 13.00

50A230 2.30

50A250 2.50

50A270 2.70

50A290 2.90

50A310 3.10

50A350 3.50

50A400 4.00

50A470 4.70

50A600 6.00

50A700 7.00

50A800 8.00

50A1000 10.00

50A1300 13.00

47F165 3.64

47F180 3.97

47F200 4.41

47F210 4.63

47F240 5.29

47F400 8.82

47F450 9.92

M250-50A 2.50

M270-50A 2.70

M290-50A 2.90

M310-50A 3.10

M350-50A 3.50

M400-50A 4.00

M470-50A 4.70

M600-50A 6.00

M700-50A 7.00

M800-50A 8.30

M1000-50A 10.00

0.50

(0.0197)

Note : The core loss of POSCO products is the maximum guarantee value at 1.5T and 50Hz.

31Electrical Steel



>> Unit Conversion Tables,

The International Systemof Units(SI)

Permeability

1 7.96 x 10 2.02

Oersted A/m A/in

1 Oersted

1.256 x 10-2 1 2.54 x 10-21 Ampere per Meter

(A/m)

4.95 x 10-1 3.94 x 10 11 Ampere per Inch

(A/in)

Magnetic Induction

1 10-4 10-4 6.45

Gauss Tesla WB/m2 line/in2

1 Gauss(G)

104 1 1 6.45 x 1041 Tesla(T)

104 1 1 6.45 x 1041 Weber per Square

Meter(Wb/m2)

1.55 x 10-1 1.55 x 10-5 1.55 x 10-5 11 Line per Square

Inch(Line/in2)

Core Loss

1 4.54x10-1

W/kg W/lb

1 Watt Per

Kilogram(W/kg)

2.204 11 Watt Per

Pound(W/lb)


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>> Packaging/Marking

PACKAGING / MARKING

MARKING

Standard packing for domestic sales Standard packing for export sales

Domestic Export

33Electrical Steel


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Date post:	18-Oct-2015
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