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, which are used in variety of applications like home appliances, HEV/EV traction motors, large generators, industrial motors Etc. They are also desirable for iron core of small-size power transformers.
Specification & Properties
| Grade | Thickness mm (Inch) | Density (Kg/dm3) | Core Loss Max. (W15/50) | Magnetic Flux Density Min. T (B50) | Lamination Factor, Min (%) | ||
|---|---|---|---|---|---|---|---|
| POSCO | Equivalent to IS Grade | Watt/Kg | Watt/lb | ||||
| 35PN230 | 35C230 | 0.35 (0.0138) | 7.60 | 2.30 | 1.04 | 1.62 | 95 |
| 35PN250 | 35C250 | 7.60 | 2.50 | 1.13 | 1.62 | ||
| 35PN270 | 35C270 | 7.65 | 2.70 | 1.22 | 1.62 | ||
| 35PN300 | 35C300 | 7.65 | 3.00 | 1.36 | 1.62 | ||
| 35PN360 | 35C360 | 7.65 | 3.60 | 1.63 | 1.63 | ||
| 35PN440 | 7.70 | 4.40 | 1.99 | 1.65 | |||
| 50PN290 | 50C290 | 0.50 (0.0197) | 7.60 | 2.90 | 1.32 | 1.62 | 96 |
| 50PN310 | 50C310 | 7.65 | 3.10 | 1.41 | 1.62 | ||
| 50PN350 | 50C350 | 7.65 | 3.50 | 1.59 | 1.62 | ||
| 50PN400 | 50C400 | 7.65 | 4.00 | 1.81 | 1.63 | ||
| 50PN470 | 50C470 | 7.70 | 4.70 | 2.13 | 1.64 | ||
| 50PN600 | 50C600 | 7.75 | 6.00 | 2.72 | 1.66 | ||
| 50PN700 | 50C700 | 7.80 | 7.00 | 3.17 | 1.70 | ||
| 50PN800 | 50C800 | 7.85 | 8.00 | 3.63 | 1.70 | ||
| 50PN1000 | 50C1000 | 7.85 | 10.00 | 4.53 | 1.70 | ||
| 65PN400 | 65C400 | 0.65 (0.0256) | 7.65 | 4.00 | 1.81 | 1.65 | 97 |
| 65PN470 | 65C470 | 7.70 | 4.70 | 2.13 | 1.65 | ||
| 65PN600 | 65C600 | 7.75 | 6.00 | 2.72 | 1.66 | ||
| 65PN700 | 65C700 | 7.80 | 7.00 | 3.17 | 1.70 | ||
| 65PN800 | 65C800 | 7.85 | 8.00 | 3.63 | 1.70 | ||
| 65PN1000 | 65C1000 | 7.85 | 10.00 | 4.53 | 1.70 | ||
Note : The above test is conducted in accordance to IEC60404-2 / JIS C2550-2000 / IS : 648 : 2006. W15/50 indicates the core loss at magnetic flux density of 1.5T & frequency of 50 Hz .
| Grade | Thickness mm (Inch) | Tensile Strength (N/mm2) | Yeild Strength (N/mm2) | Elongation % | Hardness (HV1) | Lamination Factor (%) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| POSCO | Equivalent to IS Grade | L | C | L | C | L | C | |||
| 35PN230 | 35C230 | 0.35 (0.0138) | 535 | 545 | 393 | 403 | 19 | 20 | 216 | 97.5 |
| 35PN250 | 35C250 | 522 | 539 | 370 | 385 | 19 | 21 | 214 | ||
| 35PN270 | 35C270 | 470 | 490 | 350 | 360 | 21 | 23 | 190 | ||
| 35PN300 | 35C300 | 456 | 469 | 336 | 351 | 21 | 23 | 188 | ||
| 35PN360 | 35C360 | 450 | 470 | 310 | 330 | 23 | 25 | 170 | ||
| 35PN440 | 405 | 415 | 273 | 285 | 27 | 29 | 155 | |||
| 50PN290 | 50C290 | 0.50 (0.0197) | 510 | 530 | 370 | 386 | 23 | 25 | 195 | 98 |
| 50PN310 | 50C310 | 483 | 505 | 355 | 361 | 25 | 28 | 189 | ||
| 50PN350 | 50C350 | 470 | 489 | 344 | 354 | 25 | 28 | 185 | ||
| 50PN400 | 50C400 | 465 | 482 | 352 | 365 | 27 | 30 | 183 | ||
| 50PN470 | 50C470 | 420 | 430 | 275 | 285 | 34 | 36 | 155 | ||
| 50PN600 | 50C600 | 395 | 405 | 268 | 278 | 37 | 39 | 130 | ||
| 50PN700 | 50C700 | 385 | 395 | 265 | 275 | 38 | 39 | 125 | ||
| 50PN800 | 50C800 | 375 | 385 | 260 | 270 | 39 | 40 | 118 | ||
| 50PN1000 | 50C1000 | 370 | 380 | 250 | 260 | 40 | 41 | 113 | ||
| 65PN400 | 65C400 | 0.65 (0.0256) | 480 | 485 | 335 | 340 | 29 | 30 | 180 | 98 |
| 65PN470 | 65C470 | 425 | 435 | 290 | 305 | 34 | 36 | 155 | ||
| 65PN600 | 65C600 | 390 | 395 | 270 | 280 | 35 | 37 | 130 | ||
| 65PN700 | 65C700 | 380 | 390 | 265 | 275 | 36 | 38 | 121 | ||
| 65PN800 | 65C800 | 370 | 385 | 260 | 270 | 38 | 40 | 116 | ||
| 65PN1000 | 65C1000 | 370 | 380 | 250 | 260 | 41 | 42 | 110 | ||
Note :1. L : Specimens taken longitudinal to the rolling direction, C: Specimens taken transverse to the rolling direction.
2. Specification with C-6A coating are used for lamination factor test.
| Width mm (in) |
Thickness mm (in) |
Thickness Tolerance mm (in) |
Thickness deviation in transverse direction mm (in) |
Width Tolerance mm (in) |
Camber (Length: 2m) mm (in) |
|---|---|---|---|---|---|
| 1,000 (39.37) and under | 0.35 (0.0138) 0.50 (0.0197) 0.65 (0.0256) |
±0.028 (0.00110) ±0.040 (0.00158) ±0.039 (0.00154) |
0.020 (0.0008) and under 0.020 (0.0008) and under 0.030 (0.0012) and under |
+1.0 (0.0394)
– 0.0 |
2.0 (0.0787) and under |
| 1,000 (39.37) and over | 0.35 (0.0138) 0.50 (0.0197) 0.65 (0.0256) |
±0.028 (0.00110) ±0.040 (0.00158) ±0.039 (0.00154) |
0.020 (0.0008) and under 0.020 (0.0008) and under 0.030 (0.0012) and under |
+1.5 (0.0591)
- 0.0 |
| Coating types -> | C-6A | C-9A | Remarks | |
|---|---|---|---|---|
| Equivalent ASTM type | C-5 | C-5 | ||
| Composition | organic/filler | organic/filler | ||
| Thickness (um) | 0.40~0.60 | 1.00~1.20 | ||
| Resistivity (Ωcm²/sheet) | Before SRA | ≥0.5 | ≥5.0 | ASTM A717 SRA condition:750°C x 2hrs.In DX rich gas |
| After SRA | ≥0.1 | ≥0.5 | ||
| Lamination factor (%) | 98 | 98 | 1.0 Mpat 0.05 in pressure (JIS C 2550) | |
| Heat Resistance flaking after SRA | Not Recongnized | Not Recongnized | 150°C x 24hr in Air | |
| Not Recongnized | Not Recongnized | 750°C x 2hrs.In DX rich gas | ||
| Weathering (powdering) | Not Recongnized | Not Recongnized | 65°C, 95% humidity, 72hr | |
| Adhesion (mmΦ) | Before SRA(mandrel bend tester) | 10 | 10 | ISO1519 |
| After SRA(cross cut tester) | 5B | 5B | ASTM D3359B [0B(poor)~5B(excellent)] SRA | |
| Resistance to Refrigerents | Change of surface | Not Recongnized | Not Recongnized | R-134a/Freol @15C=65g/100g(1300C, 21day, 0.45μ.m filter paper) |
| Change of weight | Not Recongnized | Not Recongnized | ||
| Weldability | excellent | good | Current : 100~150A, Ar99% flow.10~20L/min, Speed:0.25~0.50mpm | |
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.
