Technical Values of Magnet Round Wires

Most important are the tolerances for resistance and outer diameter. These and other values are important as engineering support.

Different standards specify these values differently. Therefore the 3 major world standards are shown:

IEC 60317 Magnet Round Wire for Europe and Asia

IEC 60317 is a series of standards published by the International Electrotechnical Commission (IEC) that specifies the requirements for enamelled winding wires, used in electrical equipment like transformers and motors. These standards cover various aspects, including the type of wire (round or rectangular), the insulating material (enamel), and the dimensions and performance characteristics.

Our factory products:

Magnet round copper wire: 0.21 mm – 3.50 mm
Magnet round aluminum wire: 1.00 mm – 8.50 mm
MOQ: 500kg per size
Also can customs other sizes of magnet wire, LP Industry exports magnet round wire that includes round aluminum and round copper wire, we can supply 0.018mm – 7 mm magnet round copper wires and 0.2mm – 8.5mm magnet round aluminum wires.

Nominal conductor diameter mm Conductor tolerance ± mm Minimum increase due to the insulation mm Maximum overall diameter mm
Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3
0.018   0.002 0.004 0.006 0.022 0.024 0.026
0.020   0.002 0.004 0.007 0.024 0.027 0.030
0.022   0.002 0.005 0.008 0.027 0.030 0.033
0.025   0.003 0.005 0.008 0.031 0.034 0.037
0.028   0.003 0.006 0.009 0.034 0.038 0.042
0.032   0.003 0.007 0.010 0.039 0.043 0.047
0.036   0.004 0.008 0.011 0.044 0.049 0.053
0.040   0.004 0.008 0.012 0.049 0.054 0.058
0.045   0.005 0.009 0.013 0.055 0.061 0.066
0.050   0.005 0.010 0.014 0.060 0.066 0.072
0.056   0.006 0.011 0.015 0.067 0.074 0.081
0.063   0.006 0.012 0.017 0.076 0.083 0.090
0.071 0.003 0.007 0.012 0.018 0.084 0.091 0.098
0.080 0.003 0.007 0.014 0.020 0.094 0.101 0.108
0.090 0.003 0.008 0.015 0.022 0.105 0.113 0.120
0.100 0.003 0.008 0.016 0.023 0.117 0.125 0.132
0.112 0.003 0.009 0.017 0.026 0.130 0.139 0.147
0.125 0.003 0.010 0.019 0.028 0.144 0.154 0.163
0.140 0.003 0.011 0.021 0.030 0.160 0.171 0.181
0.160 0.003 0.012 0.023 0.033 0.182 0.194 0.205
0.180 0.003 0.013 0.025 0.036 0.204 0.217 0.229
0.200 0.003 0.014 0.027 0.039 0.226 0.239 0.252
0.224 0.003 0.015 0.029 0.043 0.252 0.266 0.280
0.250 0.004 0.017 0.032 0.048 0.281 0.297 0.312
0.280 0.004 0.018 0.033 0.050 0.312 0.329 0.345
0.315 0.004 0.019 0.035 0.053 0.349 0.367 0.384
0.355 0.004 0.020 0.038 0.057 0.392 0.411 0.428
0.400 0.005 0.021 0.040 0.060 0.439 0.459 0.478
0.450 0.005 0.022 0.042 0.064 0.491 0.513 0.533
0.500 0.005 0.024 0.045 0.067 0.544 0.566 0.587
0.560 0.006 0.025 0.047 0.071 0.606 0.630 0.653
0.630 0.006 0.027 0.050 0.075 0.679 0.704 0.728
0.710 0.007 0.028 0.053 0.080 0.762 0.789 0.814
0.800 0.008 0.030 0.056 0.085 0.855 0.884 0.911
0.900 0.009 0.032 0.060 0.090 0.959 0.989 1.018
1.000 0.010 0.034 0.063 0.095 1.062 1.094 1.124
1.120 0.011 0.034 0.065 0.098 1.184 1.217 1.248
1.250 0.013 0.035 0.067 0.100 1.316 1.349 1.381
1.400 0.014 0.036 0.069 0.103 1.468 1.502 1.535
1.600 0.016 0.038 0.071 0.107 1.670 1.706 1.740
1.800 0.018 0.039 0.073 0.110 1.872 1.909 1.944
2.000 0.020 0.040 0.075 0.113 2.074 2.112 2.148
2.240 0.022 0.041 0.077 0.116 2.316 2.355 2.392
2.500 0.025 0.042 0.079 0.119 2.578 2.618 2.656
2.800 0.028 0.043 0.081 0.123 2.880 2.922 2.961
3.150 0.032 0.045 0.084 0.127 3.233 3.276 3.316
3.550 0.036 0.046 0.086 0.130 3.635 3.679 3.721
4.000 0.040 0.047 0.089 0.134 4.088 4.133 4.176
4.500 0.045 0.049 0.092 0.138 4.591 4.637 4.681
5.000 0.050 0.050 0.094 0.142 5.093 5.141 5.186

NEMA MW 1000C Magnet Round Wire for America

AWG film-insulated magnet round wire: Minimum Bare Diameter = Nominal Bare – 1%Maximum Bare Diameter = Maximum Film Insulated OD -(Minimum Film Increase + 0.0003 in.) These special maximum bare dimensions have been established to avoid bare wire diameter values that, when combined with the Minimum Film Increase, would lead to ODs greater than the Maximum Film Insulated OD or eliminate any manufacturing tolerances. Both the Minimum Film Increases and the Maximum Film Insulated ODs were previously established Standard values that must be maintained. The maximum bare diameter in the above formula shall be allowed to be exceeded up to the nominal bare diameter +1% provided the maximum overall diameter of the film insulated product is not exceeded.

Otherwise:

1/0-44 AWG Nominal Bare ±1%, according to ASTM B3 Maximum bare OD may exceed nominal by up to 1% if the maximum film insulated OD is maintained.

Our factory products:

Magnet round copper wire: 0.21 mm – 3.50 mm, thermal 180C / 200C
Magnet round aluminum wire: 1.00 mm – 8.50 mm, thermal 180C / 200C
MOQ: 500kg per size
also can customs other sizes of magnet wire

Size Bare Wire Diameter* Single Build* Heavy Build*
AWG Size Minimum Nominal Maximum Minimum Increase in Diameter Maximum Overall Diameter Minimum Increase in Diameter Maximum Overall Diameter
1 7.275 7.348 7.422 — — — —
2 6.477 6.543 6.586 — — 0.097 6.690
2.5 6.114 6.175 6.215 — — 0.097 6.318
3 5.768 5.827 5.867 — — 0.097 5.972
3.5 5.443 5.499 5.537 — — 0.097 5.641
4 5.138 5.189 5.227 — — 0.094 5.329
4.5 4.849 4.897 4.933 — — 0.094 5.034
5 4.575 4.620 4.656 — — 0.094 4.757
5.5 4.318 4.361 4.394 — — 0.091 4.493
6 4.074 4.115 4.148 — — 0.091 4.247
6.5 3.846 3.884 3.912 — — 0.091 4.011
7 3.630 3.665 3.693 — — 0.089 3.790
7.5 3.424 3.459 3.485 — — 0.089 3.581
8 3.231 3.264 3.287 0.043 3.338 0.089 3.383
8.5 3.051 3.081 3.101 0.043 3.153 0.086 3.195
9 2.878 2.906 2.929 0.043 2.980 0.086 3.023
9.5 2.715 2.743 2.764 0.043 2.814 0.086 2.858
10 2.563 2.588 2.609 0.043 2.659 0.086 2.703
10.5 2.418 2.443 2.466 0.043 2.517 0.084 2.558
11 2.281 2.304 2.327 0.043 2.377 0.084 2.418
11.5 2.151 2.174 2.195 0.041 2.243 0.084 2.286
12 2.032 2.052 2.073 0.041 2.121 0.081 2.162
12.5 1.918 1.938 1.956 0.041 2.004 0.081 2.045
13 1.811 1.829 1.847 0.041 1.895 0.081 1.935
13.5 1.707 1.725 1.740 0.041 1.788 0.081 1.829
14 1.613 1.628 1.643 0.041 1.692 0.081 1.732
14.5 1.521 1.537 1.552 0.041 1.598 0.079 1.638
15 1.435 1.450 1.466 0.038 1.509 0.076 1.549
15.5 1.356 1.369 1.382 0.038 1.430 0.076 1.468
16 1.278 1.290 1.303 0.036 1.349 0.074 1.384
16.5 1.207 1.219 1.232 0.036 1.275 0.071 1.311
17 1.138 1.151 1.163 0.036 1.207 0.071 1.240
17.5 1.074 1.085 1.095 0.033 1.140 0.069 1.173
18 1.013 1.024 1.034 0.033 1.077 0.066 1.110
18.5 0.955 0.965 0.975 0.033 1.016 0.064 1.049
19 0.902 0.912 0.922 0.030 0.963 0.064 0.993
19.5 0.853 0.861 0.869 0.030 0.912 0.061 0.942
20 0.805 0.813 0.820 0.030 0.864 0.061 0.892
20.5 0.759 0.767 0.775 0.028 0.815 0.058 0.843
21 0.716 0.724 0.732 0.028 0.770 0.056 0.800
21.5 0.676 0.683 0.691 0.028 0.729 0.056 0.757
22 0.635 0.643 0.650 0.028 0.686 0.053 0.714
22.5 0.602 0.607 0.612 0.025 0.653 0.053 0.678
23 0.569 0.574 0.579 0.025 0.617 0.051 0.643
23.5 0.536 0.541 0.546 0.025 0.584 0.051 0.610
24 0.505 0.511 0.516 0.025 0.551 0.048 0.577
24.5 0.478 0.483 0.488 0.023 0.523 0.048 0.546
25 0.450 0.455 0.460 0.023 0.493 0.046 0.516
25.5 0.424 0.429 0.434 0.023 0.467 0.046 0.490
26 0.399 0.404 0.409 0.023 0.439 0.043 0.462
26.5 0.378 0.381 0.386 0.020 0.419 0.043 0.439
27 0.358 0.361 0.363 0.020 0.396 0.041 0.419
27.5 0.338 0.340 0.343 0.020 0.376 0.041 0.396
28 0.318 0.320 0.323 0.020 0.356 0.041 0.373
28.5 0.300 0.302 0.305 0.020 0.335 0.038 0.356
29 0.284 0.287 0.290 0.018 0.320 0.038 0.338
29.5 0.267 0.269 0.272 0.018 0.300 0.036 0.320
30 0.251 0.254 0.257 0.018 0.284 0.033 0.307
31 0.224 0.226 0.229 0.015 0.254 0.030 0.274
32 0.201 0.203 0.206 0.015 0.229 0.028 0.246
33 0.178 0.180 0.183 0.013 0.206 0.025 0.221
34 0.157 0.160 0.163 0.013 0.183 0.023 0.198
35 0.140 0.142 0.145 0.010 0.165 0.023 0.178
36 0.124 0.127 0.130 0.010 0.147 0.020 0.160
37 0.112 0.114 0.117 0.010 0.132 0.018 0.145
38 0.099 0.102 0.104 0.008 0.118 0.018 0.130
39 0.086 0.089 0.091 0.008 0.107 0.015 0.114
40 0.076 0.079 0.081 0.008 0.094 0.013 0.104
41 0.069 0.071 0.074 0.008 0.084 0.013 0.094
42 0.061 0.064 0.066 0.005 0.076 0.013 0.084
43 0.053 0.056 0.058 0.005 0.069 0.010 0.074
44 0.048 0.051 0.053 0.005 0.061 0.010 0.066
45 0.0447‡ 0.0051 0.0559 0.0102 0.0610
46 0.0399‡ 0.0051 0.0508 0.0076 0.0533
47 0.0356‡ 0.0025 0.0432 0.0076 0.0483
48 0.0315‡ 0.0025 0.0381 0.0051 0.0432
49 0.0282‡ 0.0025 0.0330 0.0051 0.0381
50 0.0251‡ 0.0025 0.0305 0.0051 0.0356
51 0.0224‡ 0.0025 0.0279 — —
52 0.0198‡ 0.0025 0.0254 — —
53 0.0178‡ 0.0013 0.0216 — —
54 0.0157‡ 0.0013 0.0191 — —

JIS C3202 for Asia

JIS 3202 is a Japanese Industrial Standard that specifies requirements for enamelled winding wires used in electrical equipment. It covers wires used for windings and wirings in electrical apparatus. The standard ensures the wires meet specific quality and performance criteria for electrical applications.

Types of magnet winding wires

Polyvinyl formal enamelled round copper winding wires
Polyvinyl formal enamelled round aluminium winding wires
Polyvinyl formal enamelled rectangular copper winding wires
Polyester enamelled round copper winding wires
Polyurethane enamelled round copper winding wires

Our factory products:

Magnet round copper wire: 0.21 mm – 3.50 mm
Magnet round aluminum wire: 1.00 mm – 8.50 mm
MOQ: 500kg per size
also can customs other sizes of magnet winding wire

PEW / PVF round copper winding wire technical parameters
Conductor dimensions 0PEW/1PEW/0PVF/1PVF Maximum conductor resistance per unit length Ω/km(20°C)

Minimum

Elongation

%

 0PEW/0PVF 1PEW/1PVF 2PEW/2PVF

Diameter

mm

0PEW/1PEW tolerance

mm

 Minimum film thickness mm

Maximum overall diameter

mm

 Minimum dielectric breakdown voltage （V） Minimum film thickness mm

Maximum overall diameter

mm

 Minimum dielectric breakdown voltage （V） Minimum film thickness mm

Maximum overall diameter

mm

 Minimum dielectric breakdown voltage （V
0.10 0.008 2647 15 0.016 0.156 3500 0.009 0.140 2000 0.004 0.081 950
0.11

2153

1786

1505

1286

 0.166 0.150 0.091
0.12 1786 0.017 0.180 3750 0.010 0.162 2200 0.005 0.103 1100
0.13 1505 0.190 0.172 0.113
0.14 1286 0.200 0.182 0.125
0.15 1111 0.210 0.192 0.135
0.16 969.5 0.018 0.222 0.011 0.204 0.006 0,147 1300
0.17 853.5 0.232 0.214 0.157
0.18 757.2 0.019 0.246 3800 0.012 0.226 2400 0.167
0.19 676.2 0.256 0.236 0.177
0.20 607.6 0.266 0.246 0.007 0,189
0.21 549.0 0.276 0.256 0.199
0.22 498.4 0.286 0.266 0.008 0.211 1600
0.23 454.5 0.020 0.298 0.013 0.278 0,221
0.24 416.2 0.308 0.288 0.231
0 25 382.5 0.318 0.298 0.241
0.26 ± 0.01 358.4 0.330 0.310 0,252
0.27 331.4 0.340 0.320 0.009 0.264
0.28 307.3 0.350 0.330 0.274
0.29 285.7 20 0.360 0.340 0.284
0.30 262.9 0.021 0.374 4200 0.014 0.352 2800 0.294
0.32 230.0 0.394 0.372 0.304
0.35 191.2 0.424 0.402 0.314
0.37 170.6 0.022 0.446 0.424 0.324
0.40 145.3 0.023 0.480 0.015 0.456 0.010 0.337 2000
0.45 114.2 0.024 0.532 0.016 0.508 0.357
0.50 91.43 0.025 0.586 4500 0.017 0.560 3050 0.387
0.55 ±0.02 78.15 0.646 0.620 0.407
0.60 65.26 0.026 0.698 0.672 0.011 0.439
0.65 55.31 0.027 0.752 0.018 0.724 0.490
0.70 47.47 0.028 0.804 0.019 0.776 0.012 0.542 2150
0.75 41.19 0.030 0.860 0.020 0.830 3400 0.592
0.80 36.08 25 0.031 0.914 5100 0.021 0.882 0.644
0.85 31.87 0.032 0.966 0.022 0.934 0,694
0.90 28.35 0.033 1.020 0.023 0.986 0.013 0.746
0.95 25.38 0.034 1.072 0.024 1.038 0.014 0.798 2400
1.0 ±0.03 23.33 0.036 1.138 0.025 1.102 0.015 0.852
1.1 19.17 0.037 1.242 5900 0.026 1.204 4150 0.904
1.2 16.04 1.342 1.304 0.016 0.956
1.3 13.61 0.039 1.448 0.027 1.408 0.017 1.008
1.4 11.70 1.548 1.508 1.062
1.5 10.16 0.041 1.654 0.028 1.612      
1.6 8.906 1.754 1.712      
1.7 7.871 0.042 1.856 6300 0.029 1.814 4350      
1.8 7.007 1.956 1.914      
1.9 6.278 0.044 2.062 0.030 2.018      
2.0 5.656 30 2.162 2.118      
2.1 5.123 0.045 2.266 0.031 2.220      
2.2 4.662 0.046 2.368 0.032 2.322      
2.3 4.260 2.468 2.422      
2.4 3.908 0.048 2.574 0.033 2.526      
2.5 3.598 0.049 2.678 0.034 2.628      
2.6 3.324 2.778 2.728      
2.7 3.079 2.878 2.828      
2.8 2.861 2.978 2.92B      
2.9 2.665 3.078 3.028      
3.0 2.489 3.178 3.128      
3.2 ±0.04 2.198 3.388 3.338      
Conductor dimensions Maximum conductor resistance per unit length Ω/km(20°C)   0PVF 1PVF

Diameter

mm

tolerance

mm

Minimum

Elongation

%

 Minimum film thickness mm

Maximum overall diameter

mm

 Minimum dielectric breakdown voltage （V） Minimum film thickness mm

Maximum overall diameter

mm

 Minimum dielectric breakdown voltage （V）
0.40 ±0.01 236.6 10.0 0.023 0.480 4200 0.015 0.456 2800
0.45 185.9 0.024 0.532 0.016 0.508
0.50 148.3 0.025 0.586 4500 0.017 0.560 3050
0.55 ±0.02 128.1 0.646 0.620
0.60 106.9 0.026 0.698 0.672
0.65 90.64 0.027 0.752 0.018 0.724
0.70 77.79 0.028 0.804 0.019 0.776
0.75 67.50 0.030 0.860 0.020 0.830 3400
0.80 59.13 12 0.031 0.914 5100 0.021 0.882
0.85 52.23 0.032 0.966 0.022 0.934
0.90 46.46 0.033 1.020 0.023 0.986
0.95 41.60 0.034 1.072 0.024 1.038
1.0 ±0.03 38.24 0.036 1.138 0.025 1.102
1.1 31.43 0.037 1.242 5900 0.026 1.204 4150
1.2 26,27 1.342 1.304
1.3 22.31 0.039 1.448 0.027 1.408
1.4 19.16 1.548 1.508
1.5 16,65 0.041 1.654 0.028 1.612
1.6 14.60 1.754 1.712
1.7 12.90 0.042 1.856 6300 0.029 1.814 4350
1.8 11.48 1.956 1.914
1.9 10.29 0.044 2.062 0.030 2.018
2.0 9.272 15 2.162 2.118
2.1 8.399 0.045 2.266 0.031 2.220
2.2 7.643 0.046 2.368 0.032 2.322
2.3 6.984 2.468 2.422
2.4 6.403 0.048 2.574 0.033 2.526
2.5 5.898 0.049 2.678 0.034 2.628
2.6 5.448 2.778 2.728
2.7 5.051 2.878 2.828
2.8 4.690 2.978 2.92B
2.9 4.369 3.078 3.028
3.0 4.080 3.178 3.128
3.2 ±0.04 3.605 3.388 3.338
Conductor dimensions Failing load in resistance to abrasion test N {gf}  Maximum conductor resistance per unit length Ω/km{20°C} Minimum

Elongation

%

 Minimum film thickness mm Maximum overall diameter

mm

 Minimum dielectric breakdown voltage {V}
Diameter

mm

 tolerance

mm

 Average value{min.} Lowest value{min.}
0.10 ±0.008 – – 2647 15 0.009 0.140 2000
0.11 2153

1786

1505

1286

 0.150
0.12 1786 0.010 0.162 2200
0.13 1505 0.172
0.14 1286 0.182
0.15 1111 0.192
0.16 969.5 0.011 0.204
0.17 853.5 0.214
0.18 757.2 0.012 0.226 2400
0.19 676.2 0.236
0.20 607.6 0.246
0.21 549.0 0.256
0.22 498.4 0.266
0.23 454.5 0.013 0.278
0.24 416.2 0.288
0 25 382.5 0.298
0.26 ± 0.01 3.4 {347} 2.9{296} 358.4 0.310
0.27 331.4 0.320
0.28 307.3 0.330
0.29 285.7 20 0.340
0.30 3.7{377} 3.1{316} 262.9 0.014 0.352 2800
0.32 3.8{388} 3.2{326} 230.0 0.372
0.35 191.2 0.402
0.37 3.9 {398} 3.3{337} 170.6 0.424
0.40 4.2 {428} 3.5 {357} 145.3 0.015 0.456
0.45 4.6{469} 3.8{388} 114.2 0.016 0.508
0.50 4.9 {500} 4.2{428} 91.43 0.017 0.560 3050
0.55 ±0.02 5.0 {510} 78.15 0.620
0.60 4.3{439} 65.26 0.672
0.65 5.4{551} 4.6 {469} 55.31 0.018 0.724
0.70 5.8 {592} 4.9 {500} 47.47 0.019 0.776
0.75 6.1 {622} 5.1 {520} 41.19 0.020 0.830 3400
0.80 6.5 {663} 5.5 {561} 36.08 25 0.021 0.882
0.85 6.9 {704} 5.8 {592} 31.87 0.022 0.934
0.90 7.3 {745} 6.1 {622} 28.35 0.023 0.986
0.95 7.6 {775} 6.4 {653} 25.38 0.024 1.038
1.0 ±0.03 8.0 {816} 6.7 {683} 23.33 0.025 1.102
1.1 8.4 {857} 7.1{724} 19.17 0.026 1.204 4150
1.2 8.5 {867} 7.2 {734} 16.04 1.304
1.3 8,9 {908} 7.5{765} 13.61 0.027 1.408
1.4 9.0 {918} 11.70 1.508
1.5 9.5 {969} 7.9{800} 10.16 0.028 1.612
Conductor dimensions Failing load in resistance to abrasion test N {gf} Maximum conductor resistance per unit length Ω/km{20°C} Minimum

Elongation

%

 Minimum film thickness mm Maximum overall diameter

mm

 Minimum dielectric breakdown voltage {V}
Diameter

mm

 tolerance

mm

 Average value{min.} Lowest value{min.}
0.020 ±0.002 – – 69850 3.0 0.003 0.030 100
0.025 42780 5.0 0.037 120
0.03 28870 0.044 150
0.04 15670 7.0 0.056 200
0.05 ±0.003 10240 10.0 0.004 0.069 950
0.06 6966 0.081
0.07 4990 0.091
0.08 3778 0.005 0.103 1100
0.09 2959 0.113
0.10 2381 15 0.125
0.11 1957 0.135
0.12 1636 0.006 0.147 1300
0.13 1389 0.157
0.14 1193 0.167
0.15 1037 0.177
0.16 908.8 0.007 0.189
0.17 803.2 0.199
0.18 715.0 0.008 0.211 1600
0.19 640.6 0.221
0.20 577.2 0.231
0.21 522.8 0.241
0.22 ±0.004 480.1 0.252
0.23 438.6 0.009 0.264
0.24 402.2 0.274
0 25 370.2 0.284
0.26 2.4{243} 2.0{204} 341.8 0.294
0.27 316.6 0.304
0.28 294.1 0.314
0.29 273.9 20 0.324
0.30 ±0.005 2.6{265} 2.3{235} 254.0 0.010 0.337 2000
0.32 2.7{275} 222.8 0.357
0.35 185.7 0.387
0.37 165.9 0.407
0.40 3.0{306} 2.6{265} 141.7 0.011 0.439
0.45 ±0.006 3.1{316} 112.1 0.490
0.50 3.5{357} 2.9{296} 89.95 0.012 0.542 2150
0.55 74.18 0.592
0.60 ±0.008 3.0{306} 62.64 0.644
0.65 3.6{367} 53,26 0.694
0.70 3.9{398} 3.3{337} 45.84 0.013 0.746
0.75 4.3{439} 3.6{367} 39.87 0.014 0.798 2400
0.80 ±0.010 4.7{479} 3.9{398} 35,17 25 0.015 0.852
0.85 31.1l 0.904
0.90 5.0{510} 4.2{428} 27.71 0.016 0.956
0.95 5.4{551} 4.5{459} 24.84 0.017 1.008
1.0 ±0.012 4.6{469} 22.49 1.062
Conductor dimensions Failing load in resistance to abrasion test N {gf}  Maximum conductor resistance per unit length Ω/km{20°C}

Minimum

Elongation

%

 Minimum film thickness mm

Maximum overall diameter

mm

 Minimum dielectric breakdown voltage {V}

Diameter

mm

tolerance

mm

 Average value{min.} Lowest value{min.}
0.020 ±0.002 – – 69850 3.0 0.002 0.028 40
0.025 42780 5.0 0.034 60
0.03 28870 0.040 70
0.04 15670 7.0 0.052 100
0.05 ±0.003 10240 10.0 0.003 0.064 700
0.06 6966 0.075
0.07 4990 0.0B5
0.08 3778 0.097
0.09 2959 0.107
0.10 2381 15 0.118
0.11 1957 0.128
0.12 1636 0.004 0.139 850
0.13 1389 0.149
0.14 1193 0.159
0.15 1037 0.169
0.16 908.8 0.005 0.181
0.17 803.2 0.191
0.18 715.0 0.202 1000
0.19 640.6 0.212
0.20 577.2 0.222
0.21 522.8 0.232
0.22 ±0.004 480.1 0.243
0.23 438.6 0.006 0.255
0.24 402.2 0.265
0 25 370.2 0.275
0.26 1.6{163} 1.3{133} 341.8 0.285
0.27 316.6 0.295
0.28 294.1 0.305
0.29 273.9 20 0.315
0.30 ±0.005 1.9{194} 1.6{163} 254.0 0.007 0.327 1400
0.32 222.8 0.347
0.35 185.7 0.377
0.37 165.9 0.397
0.40 2.0{204} 141.7 0.429
0.45 ±0.006 1.7{173} 112.1 0.479
0.50 2.3{235} 2.0{204} 89.95 0.008 0.531 1450
0.55 2.4{245} 74.18 0.581
0.60 ±0.008 62.64 0.632

GB 6019 Magnet Round Wire for China

GB6109 is a Chinese national standard (GB/T 6109) that specifies the requirements for enameled round winding wire, a type of electrical wire commonly used in motors, transformers, and other electrical equipment. It’s a comprehensive standard divided into multiple parts, each addressing specific types of enamelled wire and their properties.

Our factory products:

Magnet round copper wire: 0.21 mm – 3.50 mm, thermal 180C / 200C
Magnet round aluminum wire: 1.00 mm – 8.50 mm, thermal 180C / 200C
MOQ: 500kg per size
also can customs other sizes of magnet wire

Nominal conductor diameter mm Conductor tolerance ± mm Minimum increase due to the insulation mm Maximum overall diameter mm

Minimum

Elongation

%
Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3
0.018   0.002 0.004 0.006 0.022 0.024 0.026 5
0.020   0.002 0.004 0.007 0.024 0.027 0.030 6
0.022   0.002 0.005 0.008 0.027 0.030 0.033
0.025   0.003 0.005 0.008 0.031 0.034 0.037 7
0.028   0.003 0.006 0.009 0.034 0.038 0.042
0.032   0.003 0.007 0.010 0.039 0.043 0.047 8
0.036   0.004 0.008 0.011 0.044 0.049 0.053
0.040   0.004 0.008 0.012 0.049 0.054 0.058 9
0.045   0.005 0.009 0.013 0.055 0.061 0.066
0.050   0.005 0.010 0.014 0.060 0.066 0.072 10
0.056   0.006 0.011 0.015 0.067 0.074 0.081
0.063   0.006 0.012 0.017 0.076 0.083 0.090 12
0.071 0.003 0.007 0.012 0.018 0.084 0.091 0.098 13
0.080 0.003 0.007 0.014 0.020 0.094 0.101 0.108 14
0.090 0.003 0.008 0.015 0.022 0.105 0.113 0.120 15
0.100 0.003 0.008 0.016 0.023 0.117 0.125 0.132 16
0.112 0.003 0.009 0.017 0.026 0.130 0.139 0.147 17
0.125 0.003 0.010 0.019 0.028 0.144 0.154 0.163
0.140 0.003 0.011 0.021 0.030 0.160 0.171 0.181 18
0.160 0.003 0.012 0.023 0.033 0.182 0.194 0.205 19
0.180 0.003 0.013 0.025 0.036 0.204 0.217 0.229 20
0.200 0.003 0.014 0.027 0.039 0.226 0.239 0.252 21
0.224 0.003 0.015 0.029 0.043 0.252 0.266 0.280
0.250 0.004 0.017 0.032 0.048 0.281 0.297 0.312 22
0.280 0.004 0.018 0.033 0.050 0.312 0.329 0.345
0.315 0.004 0.019 0.035 0.053 0.349 0.367 0.384 23
0.355 0.004 0.020 0.038 0.057 0.392 0.411 0.428
0.400 0.005 0.021 0.040 0.060 0.439 0.459 0.478 24
0.450 0.005 0.022 0.042 0.064 0.491 0.513 0.533 25
0.500 0.005 0.024 0.045 0.067 0.544 0.566 0.587
0.560 0.006 0.025 0.047 0.071 0.606 0.630 0.653 26
0.630 0.006 0.027 0.050 0.075 0.679 0.704 0.728 27
0.710 0.007 0.028 0.053 0.080 0.762 0.789 0.814 28
0.800 0.008 0.030 0.056 0.085 0.855 0.884 0.911
0.900 0.009 0.032 0.060 0.090 0.959 0.989 1.018 29
1.000 0.010 0.034 0.063 0.095 1.062 1.094 1.124 30
1.120 0.011 0.034 0.065 0.098 1.184 1.217 1.248
1.250 0.013 0.035 0.067 0.100 1.316 1.349 1.381 31
1.400 0.014 0.036 0.069 0.103 1.468 1.502 1.535 32
1.600 0.016 0.038 0.071 0.107 1.670 1.706 1.740
1.800 0.018 0.039 0.073 0.110 1.872 1.909 1.944
2.000 0.020 0.040 0.075 0.113 2.074 2.112 2.148 33
2.240 0.022 0.041 0.077 0.116 2.316 2.355 2.392
2.500 0.025 0.042 0.079 0.119 2.578 2.618 2.656
2.800 0.028 0.043 0.081 0.123 2.880 2.922 2.961 34
3.150 0.032 0.045 0.084 0.127 3.233 3.276 3.316
3.550 0.036 0.046 0.086 0.130 3.635 3.679 3.721 35
4.000 0.040 0.047 0.089 0.134 4.088 4.133 4.176
4.500 0.045 0.049 0.092 0.138 4.591 4.637 4.681 36
5.000 0.050 0.050 0.094 0.142 5.093 5.141 5.186

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