Non-oriented electrical steels have uniform magnetic properties in the rolling direction and in other directions. They are widely used for iron core materials of rotating machines, from large-size power generators to small-size precision electric motors. They are also desirable for the iron cores of small power transformers.
Non-grain oriented cold rolled steel
| Grade | Thickness mm (Inch) | Density (Kg/dm3) | Core Loss Max. (W15/50) | Magnetic Flux Density Min. T (B50) | Lamination Factor, Min (%) | ||
|---|---|---|---|---|---|---|---|
| GOSSAMER | 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 performed according to IEC60404-2/JIS C2550-2000/IS:648:2006 standard. W15/50 indicates core loss with magnetic flux density of 1. 5T and a frequency of 50 Hz.
Typical mechanical properties and rolling factor
| Grade | Thickness mm (Inch) | Tensile Strength (N/mm2) | Yeild Strength (N/mm2) | Elongation % | Hardness (HV1) | Lamination Factor (%) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| GOSSAMER | 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 longitudinally to the rolling direction, C: Specimens taken transversely to the rolling direction.
2. Specifications with C-6A coating are used for lamination factor testing.
Tolerances
| 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 | {{0}}.0 (0.0394) – {{0}}.0 | 1.0 (0.0394) 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 | {{0}}.5 (0.0591) {{0}}.0 |
Covering
Types and characteristics of surface insulation
| 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 | Greater than or equal to 0.5 | Greater than or equal to 5.0 | ASTM A717 SRA condition:750 degree x 2hrs.In DX rich gas |
| After SRA | Greater than or equal to 0.1 | Greater than or equal to 0.5 | ||
| Lamination factor (%) | 98 | 98 | 1.0 Mpat 0.05 in pressure (JIS C 2550) | |
| Heat Resistance flaking after SRA | Not Recognized | Not Recognized | 150 degree x 24hr in Air | |
| Not Recognized | Not Recognized | 750 degree x 2hrs.In DX rich gas | ||
| Weathering | Not Recognized | Not Recognized | 65 degree, 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 Refrigerants | Change of surface | Not Recognized | Not Recognized | R{{0}}a/Freol @15C=65g/100g(1300C, 21day, 0.45μ.m filter paper) |
| Change of weight | Not Recognized | Not Recognized | ||
| Weldability | excellent | good | Current: 100~150A, Ar99% flow.10~20L/min, Speed:0.25~0.50mpm | |
Note 1. Please designate the surface insulation according to the usage. Regarding the coating properties, please contact us.
2. The value of coating thickness and resistivity are typical values, not guaranteed.
