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Major Alloy Resistance Data


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SIZE DIA. NOMINAL OHMS PER LINEAR FT. AT 20C
( B&S ) ( INCHES ) NI 270* NI 205 MWS-875 MWS-800 MWS-675 MWS-650 MANGANIN MWS-294 ALLOY 180 MWS-120 ALLOY 90 ALLOY 60 ALLOY 30
4 .204 .001081 .001442 .02103 - .01622 .01562 .006968 .0070 - .002884 - - -
5 .182 .001358 .001811 .02642 - .02038 .01962 .008755 .0088 - .003622 - - -
6 .162 .01715 .002286 .03334 - .02572 .02476 .01105 .0112 - .004572 - - -
7 .144 .002170 .002894 .04220 - .03255 .03135 .01399 .0142 - .005788 - - -
8 .128 .002747 .003662 .05341 - .04120 .03967 .01770 .0180 .01099 .007324 .00549 .003662 .00183
9 .114 .003463 .004617 .06733 - .05194 .05001 .02231 .0226 .01385 .009234 .006925 .004617 .00230
10 .102 .004325 .005767 .08410 - .06488 .06248 .02787 .0283 .01730 .01153 .00865 .005767 .00288
11 .091 .005434 .007246 .10566 - .08151 .07849 .03502 .0355 .02174 .01449 .01082 .007246 .00362
12 .081 .006859 .009145 .13336 - .1029 .09907 .04420 .0448 .02744 .01829 .01372 .009145 .00457
13 .072 .008681 .001157 .1688 - .1302 .1254 .05594 .0567 .03471 .02314 .01735 .001157 .00578
14 .064 .010986 .01465 .2136 - .1648 .1587 .07080 .0717 .04395 .02930 .02197 .01465 .00732
15 .057 .013850 .01847 .2693 .2462 .2078 .2000 .08926 .0905 .05541 .03694 .02770 .01847 .00923
16 .051 .017301 .02307 .3364 .3076 .2595 .2499 .1115 .1130 .06921 .04614 .03460 .02307 .01153
17 .045 .022222 .02963 .4321 .3951 .3333 .3209 .1432 .1452 08889 .05926 .04444 .02963 .01482
18 .040 .028125 .03750 .5469 .5000 .4219 .4062 .1813 .1837 .1125 .0750 .0562 .03750 .01825
19 .036 .034722 .04630 .6752 .6173 .5208 .5015 .2238 .2268 .1389 .0926 .06945 .04630 .02315
20 .032 .043945 .05859 .8545 .7813 .6592 .6347 .2832 .2871 .1758 .1171 .0879 .05859 .02924
21 .0285 .055400 .07387 1.077 .9849 .831 .8002 .3570 .3619 .2216 .1477 .1108 .07387 .03693
22 .0253 .07030 .09374 1.367 1.250 1.055 1.017 .4531 .4590 .2812 .1860 .1406 .09374 .04687
23 .0226 .08810 .1175 1.713 1.566 1.322 1.272 .5678 .5756 .3525 .2350 .1762 .1175 .05875
24 .0201 .11138 .1485 2.166 1.980 1.671 1.609 .7178 .7280 .4455 .2970 .2227 .1485 .07425
25 .0179 .14044 .1873 2.731 2.497 2.107 2.029 .9051 .9176 .5619 .3746 .2809 .1873 .09365
26 .0159 .1780 .2373 3.461 3.164 2.670 2.571 1.147 1.163 .7119 .4746 .3554 .2373 .11865
27 .0142 .2232 .2976 4.339 3.967 3.348 3.228 1.438 1.458 .8928 .5952 .4464 .2976 .14880
28 .0126 .2834 .3778 5.511 5.039 4.251 4.090 1.826 1.852 1.133 .7556 .5665 .3778 .18890
29 .0113 .3524 .4699 6.853 6.265 5.286 5.090 2.271 2.302 1.401 .9398 .7001 .4669 .23494
30 .010 .4500 .6000 8.750 8.00 6.750 6.500 2.900 2.940 1.800 1.200 .9000 .6000 .30000
31 .0089 .5681 .7576 11.047 10.10 8.523 8.206 3.662 3.710 2.273 1.515 1.1365 .7576 .37830
32 .008 .7031 .9375 13.672 12.50 10.55 10.16 4.531 4.594 2.813 1.875 1.4065 .9375 .46875
33 .0071 .8927 1.1090 17.358 15.87 13.39 12.90 5.754 5.833 3.572 2.380 1.786 1.1905 .59525
34 .0063 1.1338 1.511 22.046 20.16 17.00 16.37 7.305 7.408 4.534 3.022 2.267 1.5113 .75565
35 .0056 1.4349 1.913 27.902 25.51 21.52 20.72 9.274 9.375 5.740 3.826 2.870 1.9132 .9566
36 .005 1.8000 2.400 35.00 32.00 27.00 26.00 11.60 11.76 7.200 4.800 3.600 2.400 1.2000
37 .0045 2.2222 2.963 43.210 39.51 33.33 32.09 14.32 14.52 8.889 5.926 4.444 2.963 1.4815
38 .004 2.8125 3.750 54.688 50.00 42.19 40.62 18.13 18.37 11.25 7.500 5.625 3.750 1.8750
39 .0035 3.6735 4.898 71.429 65.31 55.10 53.06 23.67 24.00 14.69 9.796 7.345 4.898 2.4490
40 .0031 4.6826 6.243 91.051 83.25 70.24 67.63 30.18 30.59 18.72 12.49 9.360 6.240 3.1200
No B&S sizes below 40 .00275 5.9504 7.937 115.702 105.8 89.29 85.98 38.36 38.87 23.97 15.86 11.985 7.937 3.9635
.0025 7.2000 9.600 140.000 128.0 108.0 104.00 46.40 47.04 28.80 19.20 14.400 9.60 4.800
.00225 8.8889 11.85 172.840 158.0 133.4 128.5 57.31 58.07 35.58 23.70 17.790 11.86 5.930
.002 11.2500 15.00 218.750 200.0 168.8 162.5 72.50 73.50 45.00 30.00 22.500 15.00 7.500
.00175 14.6939 19.59 285.714 261.3 220.6 212.4 94.69 96.00 58.83 39.18 29.915 19.61 9.805
- .0015 20.0000 26.66 388.889 355.6 300.0 288.9 128.9 130.66 - 53.33 - - -
- .0014 22.9592 - 446.429 408.2 344.4 331.6 148.0 150.00 - 61.22 - - -
- .0013 26.6272 - 517.752 473.4 399.4 384.6 171.6 174.00 - 71.01 - - -
- .0012 31.2500 - 607.639 555.0 468.7 451.4 201.4 204.00 - 83.33 - - -
- .0011 37.1901 - 723.140 661.2 557.8 537.2 239.7 243.00 - 99.17 - - -
- .001 45.0000 - 875.000 800.0 675.0 650.0 290.0 294.00 - 120.0 - - -
- .0009 55.5556 - 1080.247 987.7 833.3 802.0 - - - - - - -
- .0008 70.3125 - 1367.188 1250.0 1054.6 1016.0 - - - - - - -
- .0007 91.8367 - 1785.714 1633.0 1377.5 1327.0 - - - - - - -
- .0006 125.0000 - 2430.556 2222.0 1875.0 1806.0 - - - - - - -
- .0005 180.0000 - 3500.000 3200.0 2700.0 2600.0 - - - - - - -
* Using 45 OHMS/CMF

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