POSCO Catalogue_Electrical Steel_2013 (2)

Headquarters 1, Goedong-dong, Nam-gu, Pohang, Gyeongsangbuk-do 790-300, Korea Tel: 82-54-220-0114 Fax: 82-54-220-6000 Seoul Ofce

POSCO Center, 892 Daechi4-dong, Gangnam-gu, Seoul 135-777, Korea Tel: 82-2-3457-0114 Fax: 82-2-3457-6000 Pohang Works 5, Dongchon-dong, Nam-gu, Pohang, Gyeongsangbuk-do 790-785, Korea Tel: 82-54-220-0114 Fax: 82-54-220-6000 Gwangyang Works 700, Geumho-dong, Gwangyang, Jeollanam-do 545-711, Korea Tel: 82-61-790-0114 Fax: 82-61-790-7000

ELECTRICAL STEEL

You ourr Trust Trust Succes, Our Tomorrow T omorrow

Achieving Success with Customers Customers are always the frst in PO SCO´s every management activity. We are committed to deliver customer success by understanding them, listening to and collecting various customer needs, discovering hidden values and making proposals that meet their needs. Based on strictly customer-centric marketing strategies, we will provide technology and services most needed by the customers and help them to achieve success beyond their expectations. Our goal is

Pohang

Steelworks

Pohang Works Pohang Works was the rst integrated steel mill ever built in Korea. This grandiose project by Yeongil Bay started with Phase 1 being commissioned in 1973, and spanned three more phases until its completion in February 1981. It currently runs carbon steel and stainless steel processes and has played a pivotal role in promoting POSCO’s global competitiveness with the establishment of the world’s rst commercialized Finex process in May 2007.

Major Products Hot- and cold-rolled steel, plates, wire rods, electrical steel, stainless steel, API steel, etc. Manufacturing Focus Flexible short-run Crude Steel Production 16.54 million tons (as of late 2012)

Gwangyang Steelworks

Gwangyang Works Gwangyang Works is the largest unit steel plant in the world. With its optimum factory allocation, it operates carbon steel and high mill processes for strategic, high valueadded products including automotive steel, high-strength hot-rolled steel, high-grade API steel, and plates. Our goal is to position Gwangyang Works as the single-source supplier of choice for automakers around the world.

Major Products Hot- and cold-rolled steel, automotive steel, API steel, plates, etc. Manufacturing Focus Dedicated long-run Crude Steel Production 21.45 million tons (as of late 2012)

Contents

01 Excellent Materials POSCO produces the world’s best electrical steel with its outstanding manufacturing technology. Customers prefer products made of POSCO electrical steel because they feature excellent performance and high energy efciency. In particular, domain rened GO made by the latest laser technology are mainly used for an extra-high voltage transformer which is the most energy efcient in the world.

02 Reliable Quality Control POSCO produces products in the advanced plants and facilities and applied strict quality control standard to them to provide high-quality materials to customers.

03 Diversied Product Lines POSCO provides various grade of electrical steel to meet each customer’s

Manufacturing Process and Facilities

10

Specification & Main Application

12

Grain-Oriented Electrical Steel

14

Non Grain-Oriented Electrical Steel

20

Surface Insulation

32

Stress Relief Annelaing

33

Relation Among Weight, Outside Diameter And Width of Coil

35

Major International Standards

36

Unit Conversion Tables, The International System of Units(SI)

38

Packaging/Marking

39

Manufacturing Process and Facilities

Manufacturing process (Grain-oriented electrical steel)

Insulation Coating

Pickling

0 1

_ l e e t S l a c i r t c e l E O C S O P

Manufacturing process (Non grain-oriented electrical steel)

P O S C O E l e c t r i c a l S t e e l _ 1 1

Cold Rolling

Annealing

Speciﬁcation & Main Application

Grain-Oriented

PNMCore

PN-Core PHDCore

PHCore

Large rotating machine R o t a t i n g M a c h i n e s

2 1


S t a t i c M a c h i n e s

PGCore

●

Medium rotating machine

PN210 -400

●

Hermetically sealed motor

●

Small motor & Intermittent Service AC motor

●

Large power transformer

●

●

●

Medium & small power transformer

●

●

●

Distribution transformer

●

●

●

Reactor & magnetic amplier

●

●

●

●

Audio transformer

●

●

●

●

PN800 -1300

PNM500 PNA300 -540 -450

●

Ballast

●

PNSCore

PNFCore

PNS250

PNFPNF1500

●

●

●

●

●

●

●

●

●

●

●

●

●

●

P O S C O E l e c t r i c a l S t e e l _

●

Current & potential transformer

Magnetic

PN440 -700

PNACore

●

General use AC motor

Welding transformer

The usage presented in this section reects the general use and shall be used as a reference. Please be sure to consult with our associates when making orders for specic usage.

Non-Oriented

1 3

●

●

●

●

●

●

●


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 or mid/small-size power transformers.

Standard Size Product

PG-Core

Dimension & Shape Tolerance Grade

Width mm (in.)

Thickness mm (in.)

27PG110 27PG120 27PG130

0.27 (0.0106)

30PG110 30PG120 30PG130 30PG140

0.30 (0.0118)

35PG145 35PG155

0.35 (0.0138)

Available

Standard

850-1000 (33.46-47.24)

1000 (39.37) 1200 (47.24)

Inside diameter mm (in.)

508 (20)

Width mm (in.)

Thickness mm (in.)

Thickness Tolerance mm (in.)

Thickness deviation in transversedirection mm (in.)

Width Tolerance mm (in.)

Camber (Length : 2m) mm (in.)

850 and over (33.46)

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

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

Typical Electrical and Magnetic Properties

Note : For non-standard sizes, please contact us

Grade

Thickness Density m m ( in .) ( kg /d m3)

Resistivity Ω·m (×10-8)

Specication Magnetic properties and lamination factors

4 1


Grade

Thickness mm (in.)

27PG110 27PG120 27PG130

0.27 (0.0106)

30PG110 30PG120 30PG130 30PG140

0.30 (0.0118)

35PG145 35PG155

0.35 (0.0138)

Density (kg/dm3)

7.65

Core Loss, Max (W17/50) Watt per kilogram Watt per pound 1.10 1.20 1.30

0.50 0.54 0.59

1.10 1.20 1.30 1.40

0.50 0.54 0.59 0.64

1.45 1.55

0.66 0.70

Magnetic Flux Lamination Factor, Density, Min Min(%) T (B8) 95.0

1.80

Note : The above test is conducted in accordance with IEC60404-2 (or JIS C 2550-1). W17/50 indicates the core loss at the frequency of 50 Hz and the magnetic ux density of 1.7T. B8 indicates the magnetic ux density at 800A/m Core loss and magnetic ux density are measured after stress relief annealing in a rolling direction. (annealing condition : 840 ℃, 1Hr, Under non-oxidation atmosphere)

95.5

27PG110 27PG120 27PG130

0.30 (0.0118)

35PG145 35PG155

0.35 (0.0138)

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

0.76 1.05 1.01 1.37 0.35 0.48 0.46 0.62 0.78 1.15 1.02 1.48 0.35 0.52 0.46 0.67 0.82 1.22 1.07 1.55 0.37 0.55 0.49 0.70

0.27 (0.0106)

30PG110 30PG120 30PG130 30PG140

Core Loss W at t p er p ou nd

W at t p er k il og ra m

7.65

8

1.85 1.85 1.84 1.84

0.98 1.37 1.29 1.80 0.44 0.62 0.59 0.82 1.01 1.45 1.33 1.89 0.46 0.66 0.61 0.86

1.84 1.83

1.08 1.17 1.25 1.32

1.05 1.09 1.12 1.17

0.36 0.38 0.40 0.41

0.49 0.53 0.57 0.60

0.48 0.49 0.51 0.53

1.85 1.85 1.84

0.67 0.69 0.73 0.77

0.80 0.83 0.87 0.90

1.48 1.53 1.61 1.70

Magnetic Flux Density. T (B8)

Note : Above values are not guaranteed. Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-1) method, using specimens taken longitudinal to the rolling direction and annealed to develop full magnetic properties.

96.0

Typical Mechanical Property and Lamination Factor Thickness mm (in.) 0.27(0.0106) 0.30(0.0118)

Tensile Strength (N/mm2)

Yield Point (N/mm2)

Elongation (%)

L

C

L

C

L

C

344 345

385 412

322 330

340 350

11 12

44 49

Hardness Hv1

Lamination Factor (%)

182 174

98.0 99.0


PH-Core The directional property of grain-oriented electrical steel is more reinforced in the rolling direction than PG-Core and therefore features lower core loss and higher magnetic ux density. It is used for iron core of both large and other size power transformers and desirable for high efciency and miniaturization of m achinery.

Dimension & Shape Tolerance


Grade 23PH085 23PH090 23PH095 23PH100

PH-Core

Width mm (in.)

Thickness mm (in.)

Available

Standard


0.23 (0.0091)

27PH095 27PH100 27PH110

0.27 (0.0106)

30PH100 30PH105

0.30 (0.0118)

850-1200 (33.46-47.24)

1000 (39.37) 1200 (47.24)

508 (20)

Width mm (in.)

Thickness mm (in.)





850 and over (33.46)

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




Grade

Specication Magnetic properties and lamination factors 6 1


Grade

Thickness mm (in.)

23PH085 23PH090 23PH095 23PH100

0.23 (0.0091)

27PH095 27PH100 27PH110

0.27 (0.0106)

30PH100 30PH105

0.30 (0.0118)

Density (kg/dm3)

7.65

Core Loss, Max (W17/50) Watt per kilogram Watt per pound 0.85 0.90 0.95 1.00

0.39 0.41 0.43 0.45

0.95 1.00 1.10

0.43 0.45 0.50

1.00 1.05

0.45 0.48

Magnetic Flux Lamination Factor, Density, Min Min(%) T (B8)

94.5

1.88 95.0


23PH085 23PH090 23PH095 23PH100

0.23 (0.0091)

27PH095 27PH100 27PH110

0.27 (0.0106)

30PH100 30PH105

0.30 (0.0118)




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

0.62 0.64 0.65 0.70 7.65

48

0.83 0.88 0.90 0.95

0.81 0.85 0.86 0.92

1.10 1.15 1.17 1.26

0.28 0.29 0.30 0.32

0.38 0.40 0.41 0.43

0.37 0.39 0.39 0.42


0.50 0.52 0.53 0.57

1.91 1.91 1.91 1.90

0.70 0.93 0.92 1.23 0.32 0.42 0.42 0.55 0.72 0.97 0.95 1.27 0.33 0.44 0.43 0.58 0.78 1.03 1.01 1.37 0.35 0.47 0.46 0.62

1.91 1.90 1.90

0.74 0.99 0.98 1.29 0.34 0.45 0.44 0.59 0.76 1.01 1.00 1.33 0.35 0.46 0.45 0.60

1.91 1.90

Note : Above values are not guaranteed. Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-1) method, using specimens taken longitudinal to the rolling direction and annealed to develop full magnetic properties.

95.5 Typical Mechanical Property and Lamination Factor

Note : The above test is conducted in accordance with IEC60404-2 (or JIS C 2550-1). W17/50 indicates the core loss at the frequency of 50 Hz and the magnetic ux density of 1.7T. B8 indicates the magnetic ux density at 800A/m Core loss and magnetic ux density are measured after stress relief annealing in a rolling direction. (annealing condition : 840 ℃, 1Hr, Under non-oxidation atmosphere)

Thickness mm (in.) 0.23(0.0091) 0.27(0.0106)


Yield Point (N/mm2)

Elongation (%)

L

C

L

C

L

C

381 361

424 415

356 337

383 367

18 18

42 42

Hardness Hv1


178 182

97.0 98.0


PHD-Core Magnetic domain rened steel is the product that has been specially treated with laser scribing to lower the core loss about 30% from that of CGO steel. Energy efciency is highered and magnetostriction is lowered, resulting in low noise of this domain rened steel. It is used for iron core of both large and othersize power transformers that have not been heat treated.



Grade 23PHD080 23PHD085

PHD-Core

Width mm (in.)

Thickness mm (in.)

Available

Standard

850-1200 (33.46-47.24)

1000 (39.37) 1200 (47.24)

0.23(0.0091)

27PHD090 27PHD095

0.27(0.0106)

3 0P HD 09 5

0 .0 30 (0 .0 11 8)


508 (20)

Width mm (in.)

Thickness mm (in.)





850 and over (33.46)

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




Specication

Grade

Magnetic properties and lamination factors

Grade 8 1


Thickness mm (in.)

23PHD080 23PHD085

0.23(0.0091)

27PHD090 27PHD095

0.27(0.0106)

30PHD095

0.030(0.0118)

Density (kg/dm3)

7.65

Core Loss, Max (W17/50) Watt per kilogram Watt per pound 0.80 0.85

0.36 0.39

0.90 0.95

0.41 0.43

0.95

0.43






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


23PHD080 23PHD085

0.23 (0.0091)

0.57 0.77 0.75 1.01 0.26 0.35 0.34 0.46 0.59 0.80 0.78 1.05 0.27 0.36 0.35 0.48

1.91 1.91

94.5

27PHD090 27PHD095

0.27 (0.0106)

0.64 0.87 0.85 1.14 0.29 0.40 0.39 0.52 0.66 0.91 086 1.18 0.30 0.41 0.39 0.54

1.91 1.91

95.0

30PHD095

0.30 (0.0118)

0.68 0.93 0.91 1.23 0.31 0.42 0.41 0.56

1.91

1.88 95.5

Note : The above test is conducted in accordance with IEC60404-3 (or JIS C 2556-1996), using single sheet tester,without stress relief annealing. W17/50 indicates the core loss at the frequency of 50 Hz and the magnetic ux density of 1.7T. B8 indicates the magnetic ux density at 800A/m

7.65

48

Note : Above values are not guaranteed. Tests are conducted in accordance with IEC60404-3 (or JIS C 2556-1996) method, using as-sheared specimens in longitudinal to rolling direction, without stress relief annealing.

Typical Mechanical Property and Lamination Factor Thickness mm (in.) 0.23(0.0091) 0.27(0.0106) 0.30(0.0118)


Yield Point (N/mm2)

Elongation (%)

L

C

L

C

L

C

381 361 345

424 415 412

356 337 330

383 367 358

14 11 12

49 44 49

Hardness Hv1


176 185 183

97.0 98.0 99.0


Non Grain-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.


PN-Core (Coil)

0 2


Grade

Width mm (in.)

Thickness mm (in.)

35PN210 35PN230 35PN250 35PN270 35PN300

0.35 (0.0138)

50PN250 50PN270 50PN290 50PN310 50PN350

0.50 (0.0197)

65PN290 65PN310 65PN350

0.65 (0.0256)

35PN360 35PN440

0.35 (0.0138)

50PN400 50PN470 50PN600 50PN700 50PN800 50PN1000 50PN1300

0.50 (0.0197)

65PN400 65PN470 65PN600 65PN700 65PN800 65PN1000 65PN1300

0.65 (0.0256)

Available

Standard


50PN250 50PN270 50PN290 50PN310 50PN350 50PN400 50PN470 50PN600 50PN700 50PN800 50PN1000 50PN1300

950~1200 (37.40-47.24)

1000 (39.37) 1100 (43.31) 1200 (47.24)

Grade

508 (20)

950~1250 (37.40-49.21)

65PN290 65PN310 65PN350 65PN400 65PN470 65PN600 65PN700 65PN800 65PN1000 65PN1300

Core Loss, Max (W15/50)

Magnetic Flux Lamination Factor, Density.Min Min(%) T (B50)

Thickness mm (in.)

Density (kg/dm3)

0.50 (0.0197)

7.60 7.60 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

1.14 1.23 1.32 1.41 1.59 1.82 2.13 2.72 3.18 3.63 4.54 5.90

1.62 1.62 1.62 1.62 1.62 1.63 1.64 1.66 1.70 1.70 1.70 1.70

96.0

0.65 (0.0256)

7.60 7.65 7.65 7.65 7.70 7.75 7.80 7.85 7.85 7.85

2.90 3.10 3.50 4.00 4.70 6.00 7.00 8.00 10.00 13.00

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 1.63 1.64 1.66 1.70 1.70 1.70 1.70

97.0

Watt per kilogram Watt per pound

Note : The above test is conducted in accordance with IEC60404-2 (or JIS C 2550-1), using as-sheared specimens taken one half longitudinal and one half transverse to the rolling direction. W15/50 indicates the core loss at the frequency of 50 Hz and the magnetic ux density of 1.5T. B50 indicates the magnetic ux density at 5000A/m


Dimension & Shape Tolerance Specication Magnetic properties and lamination factors

Grade 35PN210

Thickness mm (in.)

Density (kg/dm3) 7.60

Core Loss, Max (W15/50) Watt per kilogram Watt per pound 2.10

0.95


Width mm (in.)

Thickness mm (in.)




1000(39.37) and under

0.35(0.0138) 0.50(0.0197) 0.65(0.0256)

±0.035(0.00138) ±0.040(0.00158) ±0.052(0.00205)

0.02(0.0008) and under 0.03(0.0012) and under 0.04(0.0016) and under

+1.5(0.0591) 0


1.0(0.0394)



Grade


35PN210 35PN230 35PN250 35PN270 35PN300 35PN360

0.35 (0.0138)

50PN290 50PN310 50PN350 50PN400

2 2


59

7.60 7.60 7.65 7.65

59 55 52 45 45

7.60

50PN250 50PN270


7.60

7.65 7.70

35PN440

Typical Mechanical Property and Lamination Factor

7.60 7.60 7.65 7.65

42

59 59 56 53 50 45

Magnetic Flux Density.(T)

Core Loss W at t p er k il og ra m

W at t p er p ou nd

Grade B 25 B 50

0.84 2.04 1.03 2.53 0.38 0.93 0.89 2.10 1.07 2.60 0.40 0.95 0.96 2.25 1.17 2.85 0.43 1.02 1.02 2.40 1.28 3.00 0.46 1.09

0.47 0.49 0.53 0.58 1.08 2.53 1.38 3.18 0.49 1.15 0.63 1.25 2.80 1.55 3.45 0.57 1.27 0.70 1.39 3.08 1.73 3.82 0.63 1.40 0.79

1.00 2.37 1.31 1.05 2.50 1.35 1.09 2.60 1.45 1.21 2.70 1.55 1.30 2.93 1.41 3.18 1.64 3.55

3.08 3.22 3.35 3.46 1.63 3.74 1.82 4.01 2.06 4.56 2.49 5.63 3.30 7.03

0.17 1.56 1.65 0.18 1.57 1.66 0.20 1.57 1.66 0.21 1.58 1.67 0.22 1.59 1.69 0.26 1.59 1.69 0.29 1.62 1.71

0.45 1.08 0.59 1.40 1.57 1.67 0.48 1.14 0.61 1.46 1.57 1.67 0.50 1.18 0.65 1.52 1.58 1.67 0.55 1.23 0.70 1.57 1.59 1.68 0.59 1.33 0.74 1.70 1.60 1.69 1.44 0.83 1.82 1.61 1.70 1.61 0.94 2.07 1.61 1.70 2.00 1.13 2.56 1.62 1.71 2.52 1.50 3.19 1.64 1.72

50PN1000 50PN1300

7.85 7.85

17 17

65PN400 65PN470 65PN600 65PN700

7.65 7.70 7.75

45 42 34 30

1.63 1.91 2.27 3.02

17 17 17

3.38 7.28 4.56 9.39 1.53 3.30 2.07 4.26 1.67 1.75 3.64 7.86 5.00 10.14 1.65 3.57 2.27 4.60 1.68 1.75 4.32 8.79 5.83 11.29 1.96 4.00 2.65 5.13 1.68 1.75

65PN800 65PN1000 65PN1300

0.65 (0.0256)

7.65 7.70 7.75 7.80 7.85

7.80 7.85 7.85 7.85

42 34 30 17


3.70 4.16 5.14 6.47

2.84 1.65 3.60 1.66 1.74 3.09 1.86 3.91 1.67 1.75 3.43 2.16 4.33 1.67 1.75

2.23 4.85 0.74 1.68 1.01 2.20 1.62 1.70 2.59 5.45 0.87 1.89 1.18 2.47 1.62 1.70 3.09 6.68 1.03 2.33 1.40 3.03 1.63 1.72 4.06 8.33 1.37 2.94 1.84 3.78 1.65 1.73

Note : Above values are not guaranteed. Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-1) method, using as-sheared specimens taken one half longitudinal and one half transverse to t he rolling direction.

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

Yield Point (N/mm2)

Elongation (%)

Hardness Hv1


L

C

L

C

L

C

0.35 (0.0138)

538 535 522 467 456 450 405

547 545 539 485 469 470 415

415 393 370 347 336 350 273

427 403 385 361 351 366 285

18 19 19 21 21 23 27

19 20 21 23 23 25 29

220 216 214 190 188 170 150

97.5

0.50 (0.0197)

550 535 510 483 470 465 415 395 385 375 370 350

570 550 530 505 489 482 420 405 395 385 380 360

413 406 370 355 344 352 265 260 270 270 265 250

426 460 386 361 354 365 275 270 280 280 275 260

20 22 23 25 25 27 34 37 38 39 40 42

22 23 25 28 28 30 36 39 39 40 41 43

223 205 195 189 189 183 143 130 120 115 113 105

98.0

499 480 420 395 375 370 350

490 490 430 405 385 380 360

320 300 295 275 270 265 260

340 315 305 285 280 275 270

24 28 30 35 41 43 45

26 29 31 37 43 45 4

170 160 150 118 113 110 110

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

0.64 0.74 0.90 1.98 4.40 1.19 2.62 5.55 2.93 6.26 3.63 7.94 1.33 3.20 6.80 4.10 8.62 1.45 3.75 7.56 4.75 9.54 1.70

50PN470 50PN600 50PN700 50PN800

0.50 (0.0197)

Thickness mm (in.)

0.65 (0.0256)

Note : 1. Tests are conducted in accordance with JIS Z 2241 and 2244 2. L : Specimens taken longitudinal to the rolling direction C : Specimens taken transverse to the rolling direction 3. Specimens with C-6A coating are used for lamination factor test.


98.0

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.


Typical Electrical and Magnetic Properties Grade

65PNM540 PNM-Core (Coil)

70PNM500

Width mm (in.)

Thickness mm (in.) 0.65 (0.0256) 0.70 (0.0276)

Available

Standard

950~1200 (37.40-47.24)

1000 (39.37) 1100 (43.31) 1200 (47.24)


508 (20)


Grade



Magnetic Flux Density(T)


W at t p er p ou nd

B 25 B 50

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

65PNM540

0.65 (0.0256)

7.70

42

1.80 3.72 2.27 4.81 0.82 1.69 1.03 2.18 1.65 1.73

70PNM500

0.70 (0.0276)

7.65

44

1.72 3.63 2.18 4.78 0.78 1.65 0.99 2.17 1.61 1.70

Note : Above values are not guaranteed. Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-1) method, using as-sheared specimens taken one half longitudinal and one half transverse to the rolling direction.

Specication Magnetic properties and lamination factors

4 2


Core Loss, Max (W15/50)


Thickness mm (in.)

Density (kg/dm3)

65PNM540

0.65 (0.0256)

7.70

5.40

2.45

1.66

97.0

70PNM500

0.70 (0.0276)

7.65

5.00

2.63

1.65

97.0

Grade

Watt per kilogram Watt per pound

Note : The above test is conducted in accordance with IEC60404-2 (or JIS C 2550-1), using as-sheared specimens taken one half longitudinal and one half transverse to t he rolling direction. W15/50 indicates the core loss at the frequency of 50 Hz and the magnetic ux density of 1.5T. B50 indicates the magnetic ux density at 5000A/m

Dimension & Shape Tolerance Thickness mm (in.)




1000(39.37) and under

0.65(0.0256)

±0.052(0.00205)

0.70(0.0276)

±0.056(0.00221)

0.04(0.0016) and under

+1.5(0.0591) 0

1000(39.37) over

0.65(0.0256)

±0.052(0.00205)

0.70(0.0276)

±0.056(0.00221)

0.04(0.0016) and under

+1.5(0.0591) 0

Width mm (in.)


1.0(0.0394) and under

Typical Mechanical Property and Lamination Factor Tensile Strength (N/mm2)

Yield Point (N/mm2)

Elongation (%)

Grade

Thickness mm (in.)

Hardness Hv1

L

C

L

C

L

C

65PNM540

0.65 (0.0256)

437

452

300

315

32

33

155

70PNM500

0.70 (0.0276)

495

503

356

371

37

39

173


98.0



PNF-Core


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


PNF-Core (Coil)

Grade Grade

20PNF1500

0.20 (0.0080)

30PNF1600

0.30 (0.0118)

35PNF1800

Width mm (in.)

Thickness mm (in.)

Available

Standard

950~1200 (37.40-47.24)

1000 (39.37) 1100 (43.31)

0.35 (0.0138)


Thick- Density ness (kg/ mm (in.) dm3)

0.20 7.65 (0.0080) 0.30 7.60 30PNF1600 (0.0118) 0.35 35PNF1800 7.60 (0.0138) 20PNF1500

508 (20)

Core Loss Resistivity Watt per kilogram Watt per pound Ω·m (×10-8) W10/50 W15/50 W10/60 W15/60 W10/400 W10/50 W15/50 W10/60 W15/60 W10/400 50

1.24

2.71

1.53

3.28

12.8

1.23

0.69

1.49

5.76

1.55

1.65

59

0.93

2.16

1.17

2.72

14.8 0.422 0.98

0.53

1.23

6.71

1.56

1.66

59

0.97

2.19

1.20

2.73

16.9

0.54

1.24

7.67

1.56

1.66

Grade

Thickness mm (in.)



20PNF1500

B50

0.44

0.99

Typical Mechanical Property and Lamination Factor

Specication

6 2

B25

Note : Above values are not guaranteed. W10/400 indicates the core loss at the frequency of 400 Hz, magnetic ux density of 1.0T. Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-1) method,


Grade

0.56


Thickness mm (in.)

Density (kg/dm3)

0.20 (0.0080)

7.65

Core Loss , Max (W10/400) Watt per kilogram Watt per pound 15.0

6.80


93.0

30PNF1600

0.30 (0.0118)

7.60

16.0

7.26

1.62

94.5

35PNF1800

0.35 (0.0138)

7.60

18.0

8.17

1.62

95.0

20PNF1500 30PNF1600 35PNF1800

0.20 (0.0080) 0.30 (0.0118) 0.35 (0.0138)


Yield Point (N/mm2)

L

C

L

471

490

416

426

423

432

Elongation (%) L

C

363

381

16

19

195

97.0

535

545

18

19

223

97.5

542

551

19

20

224

97.5


Comparison of Core Loss with Frequency




1000(39.37) and under

0.20 (0.0080) 0.30 (0.0118) 0.35 (0.0138)

±0.020(0.0008) ±0.030(0.0012) ±0.035(0.0014)

0.02(0.0008) and under

+1.5(0.0591) 0


1.0(0.0394)


Dimension & Shape Tolerance Thickness mm (in.)


C

Note : The above test is conducted in accordance with IEC60404-2 (or JIS C 2550-1), using as-sheared specimens one half longitudinal and one half transverse to the rolling direction. W10/400 indicates the core loss at the frequency of 400 Hz and magnetic ux density of 1.0T. B50 indicates magnetic ux density at 5000A/m

Width mm (in.)

Hardness Hv1

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

PNA-Core


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


Grade Grade

Width mm (in.)

Thickness mm (in.)

Available

Standard

950~1200 (37.40-47.24)

1000 (39.37) 1100 (43.31) 1200 (47.24)

50PNA300 PNA-Core (Coil)

50PNA350

0.50 (0.0197)

50PNA450


Inside diameter mm (in.) 50PNA300 50PNA350 508 (20)

0.50 (0.0197)

50PNA450




W at t p er p ou nd

B 25 B 50

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

7.75

37

1.29 2.70 1.72 3.71 0.59 1.35 0.78 1.68 1.66 1.73

7.75

33

1.36 3.05 1.83 3.91 0.62 1.38 0.83 1.77 1.67 1.74

7.80

25

1.73 3.89 2.22 5.11 0.79 1.77 1.01 2.32 1.63 1.72

Note : Above values are not guaranteed. Tests were conducted in accordance with IEC60404-2 (or JIS C 2550-1) method, after stress relief annealing. (Annealing condition : 750℃ (1380℉) × 2hrs. under neutral at mosphere.)


Typical Mechanical Property and Lamination Factor Specication

Grade


Grade

Thickness mm (in.)

Density (kg/dm3)

Core Loss, Max (W15/50) Watt per kilogram Watt per pound


50PNA300 50PNA350

8 2


7.75

50PNA300

3.0

1.36

1.70

96.0 50PNA450

50PNA350

0.50 (0.0197)

50PNA450

7.75

3.5

1.59

1.70

96.0

7.80

4.5

2.13

1.70

96.0

Thickness mm (in.)

0.50 (0.0197)


Yield Point (N/mm2)

L

C

L

402

415

382

401

380

381

Elongation (%)

Hardness Hv1

C

L

C

260

269

37

39

141

268

278

36

38

124

269

270

39

39

117


98.0



Note : The above test is conducted in accordance with IEC60404-2 (or JIS C 2550-1), using specimens one half longitudinal and one half transverse to the rolling direction. Core loss and magnetic ux density are measured after stress relief annealing. (Annealing condition : 750℃×2hrs, under non-oxidation atmosphere) W15/50 indicates the core loss at the frequency of 50 Hz and magnetic ux density of 1.5T. B50 indicates the magnetic ux density at 5000A/m

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


Width mm (in.)

Thickness mm (in.)




1000(39.37) and under

0.5(0.0197)

± 0.040 (0.00158)

0.03(0.0012) and under

+1.5(0.0591) 0


Through higher induction and punchability, PNA-core features higher efciency of products and longer life of dies.

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



PNS-Core (Coil)

Grade

35PNS250

Width mm (in.)

Thickness mm (in.)

0.35 (0.0138)

Available

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

950~1200 (37.40-47.24)


508 (20)

Grade

35PNS250


0.35 (0.0138)


7.60

56



W at t p er p ou nd

B 25 B 50

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

0.98 2.25 1.22 2.83 0.45 1.02 0.55 1.29 1.57 1.66

Note : Above values are not guaranteed. Tests are conducted in accordance with IEC60404-2 (or JIS C 2550-1) method, using as-sheared specimens taken one half longitudinal and one half transverse to the rolling direction.


Typical Mechanical Property and Lamination Factor Specication Magnetic properties and lamination factors

Grade

0 3


35PNS250

Thickness mm (in.)

Density (kg/dm3)

0.35 (0.0138)

7.60

Core Loss, Max (W15/50) Watt per kilogram Watt per pound


Grade

35PNS250 2.5

1.14

1.63

95.0

Note : The above test is conducted in accordance with IEC60404-2 (or JIS C 2550-1), using as-sheared specimens taken one half longitudinal and one half transverse to t he rolling direction. W15/50 indicates the core loss at the frequency of 50 Hz and the magnetic ux density of 1.5T. B50 indicates the magnetic ux density at 5000A/m


Width mm (in.)

Thickness mm (in.)




1000(39.37) and under

0.35 (0.0138)

± 0.035 (0.00138)

0.02(0.0008) and under

+1.5(0.0591) 0

1000(39.37)

0.35 (0.0138)

± 0.035 (0.00138)

0.03(0.0012)

+1.5(0.0591)


1.0(0.0394) and under

Thickness mm (in.)

0.35 (0.0138)


Yield Point (N/mm2)

Elongation (%)

L

C

L

C

L

C

442

445

330

332

23

25


Hardness Hv1


186

98.0


Surface Insulation

Stress Relief Annelaing

Types and Features of Surface Insulation

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

GO

NO

General

Ecofriendly

0A

GS

General C-6A

C-9A

time. Notice

Eco-friendly NS

NM

NT

Applied Spec

GO

NO

Composition

Inorganic Inorganic

Inorganic Inorganic Inorganic Inorganic Inorganic +organic +organic +organic +organic +organic

Annealing Temperature If the annealing temperature is too low, it is difcult 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 780℃ to 840℃ and 750℃ to 800℃ for non-oriented electrical steel for improved magnetic properties.

Annealing Time Thickness (um)

Annealing time means the in-furnace time of materials at the highest temperature during the annealing process. 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.

Before SRA

≥ 15

≥ 15

≥ 0.5

≥ 5.0

≥ 3.0

≥ 5.0

After SRA

≥ 15

≥ 15

≥ 0.1

≥ 0.5

≥ 3.0

≥ 5.0

95.0

95.0

98.0

98.0

98.0

98.0

Not recognized

Not recognized

Not recognized

Not recognized

Not recognized

Not SRA Not recog- Acceptnized ed

155℃×24hrs. in Air

Not recognized

Not recognized

Not recognized

Not recognized

Not recognized

Not SRA Not recog- Acceptnized ed

750℃×2hrs. in DX rich gas

Not Weathering (powdering) recognized

Not recognized

Not recognized

Not recognized

Not recognized

Not recognized

Not recognized

65℃, 95% humidity, 72hrs.

Resistivity (Ωcm2/sheet)


2 3


1.5~2.0 1.5~2.0 0.5~1.0 1.2~1.8 0.5~1.0 1.2~1.8 5.0~7.0

Heat resistance aking after SRA

Adhesion (mmФ )

≥ 100

ASTM A 717 SRA condition : 750℃×2hrs. in DX rich SRA Not gas Accepted

97.0

1.0MPa ± 0.05 in Pressure (JIS C 2550)

Before SRA (Mandrel bend tester)

30

30

10

10

10

10

20

ISO 1519

After SRA(Cross cut tester)

-

-

5B

5B

5B

5B

5B

ASTM D3359B [0B (poor) ~ 5B (excellent)] After SRA

-

-

Not recognized

Not recognized

Not recognized

Not recognized

-

-

-

Not recognized

Not recognized

Not recognized

Not recognized

-

Change of Resistance surface to refrigerants Change of weight

R-134a/Freol @15C = 65g/100g (130℃, 21days,0.45㎛ lter paper)

Heating and Cooling Speed Abrupt heating and cooling must be avoided to prevent any deformation of the iron core. Slow cooling must be applied until it reaches 300~350℃, after that and cooling is permitted.

Furnace Atmosphere 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 0 ℃ 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.


Relation Among Weight, Outside Diameter And Width of Coil

Reference for rust Condensed Water on steel surface Graph according to Humidity and Temperature

4 3



Major International Standards

The product standards are subject to change. Please be sure to conrm the recent standards when making orders or to consult our associates. Non-Oriented Electrical Steel


Thickness mm (inch)

POSCO

JIS C 2553

ASTM

EN10107

(2006)

(2000)

(1999)

(1995)

W/kg

W/kg

W/kg

17/50

17/50

17/60

23Q054 1.19

POSCO Thickness mm (inch)

(2000)

(1999)

W/kg

W/kg

W/kg

W/kg

W/kg

17/50

15/50

15/50

15/60

15/50

36F145 3.20

M235-35A 2.35

36F155 3.42

M250-35A 2.50

36F175 3.86

M270-35A 2.70

36F205 4.52

M300-35A 3.00

23PHD085 0.85

23R085 0.85

35PN210 2.10

35A210 2.10

23PH090 0.90

23P090 0.90

35PN230 2.30

35A230 2.30

(0.0091)

23PH095 0.95

23P095 0.95

35PN250 2.50

35A250 2.50

23PH100 1.00

23P100 1.00

0.35 23P060 1.32

M100-23P 1.00

(0.0138)

27R090 0.90

27PH095 0.95


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

(2006)

0.23

27PHD090 0.90

6 3

Magnetic Flux Core Loss Density.Min(T) JIS C 2552 ASTM EN10106 W at t p er k il og ra m W at t p er p ou nd

0.27

27PH100 1.00

27P100 1.00

(0.0106)

27PH110 1.10

27P110 1.10

27PG120 1.20

27G120 1.20

27PG130 1.30

27G130 1.30

27H074 1.63

M130-27S 1.30

35A440 4.40

50PN250 2.50

50A250 2.50

50PN270 2.70

50A270 2.70

50PN290 2.90

50A290 2.90

50PN310 3.10

50A310 3.10

M250-50A 2.50 M270-50A 2.70 M290-50A 2.90 47F180 3.97 M310-50A 3.10 47F200 4.41

30P110 1.10

M111-30P 1.11

(0.0118)

30P120 1.20

M117-30P 1.17

30G140 1.40

35PN440 4.40

47F165 3.64

30P105 1.05

30PG140 1.40

35A360 3.60

50A230 2.30

0.30

30G130 1.30

35A300 3.00

35PN360 3.60

27P066 1.46

M105-30P 1.05

30PG130 1.30

35PN300 3.00

35A270 2.70

M103-27P 1.03

30PH100 1.00 30PH105 1.05

35PN270 2.70

(1995)

30H083 1.83

M140-30S 1.40

0.50 (0.0197)

50PN350 3.50

50A350 3.50

50PN400 4.00

50A400 4.00

M350-50A 3.50

50PN470 4.70

50A470 4.70

50PN600 6.00

50A600 6.00

50PN700 7.00

50A700 7.00

50PN800 8.00

50A800 8.00

M800-50A 8.30

50PN1000 10.00

50A1000 10.00

M1000-50A 10.00

50PN1300 13.00

50A1300 13.00

47F210 4.63 M400-50A 4.00 47F240 5.29 M470-50A 4.70 M600-50A 6.00 47F400 8.82 M700-50A 7.00 47F450 9.92

0.35

35PG145 1.45

35G145 1.45

(0.0138)

35PG155 1.55

35G155 1.55

35H094 2.07

M150-35S 1.50


Unit Conversion Tables, The International System of Units(SI)

Packaging/Marking

PACKAGING / MARKING

Magnetizing force Oersted

A/m

1 Oersted

1

7.96 x 10

1 Ampere per Meter (A/m)

1.256 x 10-2

1

1 Ampere per Inch (A/in)

4.95 x 10-1

A/in

Standard packing for domestic sales

Standard packing for export sales

2.02

2.54 x 10-2

10 Side Protective Block (Steel + Hard board) 1 Packaging Paper

1 Packaging Paper

(OPP Anti-Rust pater) 8 Inner Protective Block (Steel + Hard board) 6 Seal Pad

3.94 x 10

1

6 Seal Pad

7 Connector

7 Connector

3 Inner ring

3 Inner ring 5 Vertical band

2 Outer ring

5 Vertical band 2 Outer ring

4 Horizontal band

Magnetic ux density

1 Gauss(G)

Gauss

Tesla

WB/m2

line/in2

1

10-4

10-4

6.45 P O S C O E l e c t r i c a l S t e e l _

8 3


4

1 Tesla(T)

4

10

1

1

6.45 x 10

1 Weber per Square Meter(Wb/m2)

104

1

1

6.45 x 104

MARKING Domestic

1 Line per Square Inch(Line/in2)

1.55 x 10-1

1.55 x 10-5

1.55 x 10-5

1

Core Loss

1 Watt Per Kilogram(W/kg)

W/kg

W/lb

1

4.54x10-1

4 Horizontal band 9 Outer Protective Block (Steel + Hard board)

Export

3 9

Global Network

0 4



Global Network

2 4



Seeking customer trust and success through customer-centric marketing vision

Advancing customer success through the POSCO EVI program

Facing the ever-growing competition at home and abroad, POSCO has set up a new customer-centric marketing vision of “Your Trust and Success, Our Tomorrow.”

The POSCO EVI (Early Vendor Involvement) program is designed to help POSCO achieve customer success by predicting the future market environment faster than customers

The vision embraces POSCO’s firm commitment to become customers’ most favored business partner based on core values of being customer-centric, having a global

and developing and proposing customized technology and products in advance. Under the initiative, we participate in customers’ product design stage and onward to provide

mind, developing creative flexibility, and maintaining a professional mindset. Building on the core values, we offer a global one-stop service and customized values

customized products, propose solutions in advance to create customer value that fits market needs and industry trends, and generate new business together with customers.

triggered by our insight, and put customers at the center of our business process innovation. In order to achieve this vision, we have not only designed execution

With the program being applied to all industry segments, we aim to walk side by side with our customers not just as a material supplier but as a business partner.

guidelines at the company level, but all the executives and employees have also individually and collectively pledged their commitment towards its successful realization.

POSCO Catalogue_Electrical Steel_2013 (2)

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