001 Front Cover

Heater Wire -

Type A and Type C The Arklay S. Richards Co., lnc. offers two types of resistance heating wire. The RICHARDS NWA or Type A heating wire is composed of AO7o Nickel and 20% Chromium. lt has a lowerlemperature coefficient of resistance when compared to Type C wire. The Type A has a usable temperature range up to 1150"C or 2100' F. Our NWC or Type C resistance heating wire is composed of ooz tttict

2.119 2.673 3.372 4.264 5.351 6.792 8.559 10.75 13.57 17 .18 21 .74 17 .41 34.23 43.01 54.29 68.71 86.96 109.6 136.9 175.9 222.6 274.8 347.8 438.5 556.4 697.3 881.6 1766 2243 2289 3562 4497 5565 7065 8974 11360 14250 2226A 29080 37060 47 1AA 55990 70350 89040 1112 1 409 1 7590

0.004015 0.005067 0.006391 0.008082 0.01014 0,01287 0.01622 0.02038 a.a2572 0.03255 0.a4120 0.05194 0.06488 0.08151

NWC910 NWC920 NWC930 NWC010 NWC020 NWC030 NWC040 NWC050 NWC060 NWC070 NWC080 NWC090 NWC100 NWC110 NWC120 NWC130 NWC140 NWC150 NWC160 NWC170 NWC180 NWC190 NWC200 NWC210 NWC220 NWC230 NWC240 NWC250 NWC260 NWC270 NWC280 NWC290 NWC300 NWC310 NWC320 NWC330 NWC340 NWC350 NWC360 NWC370 NWC380 NWC390 NWC400 NWC410 NWC420 NWC430

2.A77 2.621 3.305 4.180 5.245 6.658 8.390 10.54 13.30 16.84 21 .31 26.87 33.56 42.16 53.21 67.35 107.50 134.20 172.40 218.20 269.40 341.00 429.80 545.50 683.60 864.20 85.24 1 381 1731 2199 2734 3491 4408 5455 5626 8797 11130 17244 2182A 28500 36330 46170 55860 68970 8728A 1 3970 1 090

0.003867 0.004879 0.006154 a.aa7782 0.009765 0.01240 0.01562 0.01 962 a.42477 0.03135 0.03967 0.05002 0.06248 0.07849 0,09907 0.01254

NWA91O NWA92O NWAg3O NWAOI O NWAO2O NWAO3O NWAO4O NWAOsO NWAO6O NWAOTO NWAOSO NWAO9O NWA1 OO NWA11O NWAl20 NWA130 NWAl40 NWA150 NWAl60 NWA170 NWAl80 NWA190 NWA2OO NWA21O NWA220 NWA23O NWA24O NWA25O NWA26O NWA27O NWA28O NWA29O NWA3OO NWA31O NWA32O NWA33O NWA340 NWA35O NWA36O NWA37O NWA38O NWA39O NWA4OO NWA41O NWA42O NWA43O NWA44O NWA45O NWA46O

10.414 9.271 8.255 7.341 6.553 5.817 5.182 4.623 4.115 3.658 3.251 2.896 2.591 2.311 2.057 1.829 1.626

0.410 0.365 0.325 0.289 0.258 0.229 o.204 0.1 82 0j62 0.144 0.1 28 0.114 0.102 0.091 0.081 a.072 0.064 0.057 0.051 0.045 0.040

0 0 0

1

2 3

4

5 6 7 8 9

10

'1

1

0.1029 0.1302 0.1 648 0.2078 0.2595 0.3333 a.4219 0.5208 0.6592 0.831 1.055 1.322 1 .671 2.107 2.670 3.348 4.252 5.286 6.750 8.522 10.55 13.39 17.O1 21 .52 27.00 33.33 42.19 55.10 70.24 89.26 108.00 133.30 168.80 220.40 300"00

12 13 14 16 17 1B 19 2A 21 22 23 24 25 26 27 28 l5

0.1587 0.2001 0.2499 0.3210 0.4063 0.5015 0.6348 0.8002

1.448 1.295

.143

1

1.016

0.0360 0 9140 0.0320 0.8130

0.7239 0.6426

0.0285 0.0253

1 .015 1.273 1.609 2.029 2.571 3.224 4.094 5.090 6.500 8.206 10.160 12.890 16.380 2A.73A 26.000 32.100 40.630 53.060 67.640 85.950 104.000 n8.404 162.500 212.244

0.0226 0.5740

0.5105

0.02c 1

0.0179 0.4547 0.0159 0.4039

0.4142

0.3607

0.0126 0.3200

0.2870 0.2540 a.2261 0.2032 0.1803 0.1 600 a.1422 0.1270

0.0113 0.0100 0.0089 0.0080 0.0071 0.0063 0.0056 0.0050

29 30

31

J/.

33 34 QR JO 37 3B 39 40 41 42 43 44 45 46

0.0045 0.1143 0.0040 0.1016 0.0035 0.0889 0.00310 a.0787 0.00250 0.0635 0.00225 0.0672 0.00200 0.0508 a.00275 0.0699

NWC440 NWC450 NWC460

6300

4000

4.0445 0.0381

1 1

0.00175 0.00150

1 1

58300

55200

288.900

1

1

Page 1

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