Type A (80% Nickel)
Type C (60% Nickel)
Gauges
Wire
Gauge
Inches
MM
Type A
Part Number
Ohms /
Foot
Feet /
Pound
Type C Part
Number
Ohms /
Foot
Feet / Pound
0
0.410
10.414
NWA910
0.003867
2.077
NWC910
0.004015
2.119
0
0.365
9.271
NWA920
0.004879
2.621
NWC920
0.005067
2.673
0
0.325
8.255
NWA930
0.006154
3.305
NWC930
0.006391
3.372
1
0.289
7.341
NWA010
0.007782
4.180
NWC010
0.008082
4.264
2
0.258
6.553
NWA020
0.009765
5.245
NWC020
0.01014
5.351
3
0.229
5.817
NWA030
0.01240
6.658
NWC030
0.01287
6.792
4
0.204
5.182
NWA040
0.01562
8.390
NWC040
0.01622
8.559
5
0.182
4.623
NWA050
0.01962
10.54
NWC050
0.02038
10.75
6
0.162
4.115
NWA060
0.02477
13.30
NWC060
0.02572
13.57
7
0.144
3.658
NWA070
0.03135
16.84
NWC070
0.03255
17.18
8
0.128
3.251
NWA080
0.03967
21.31
NWC080
0.04120
21.74
9
0.114
2.896
NWA090
0.05002
26.87
NWC090
0.05194
17.41
10
0.102
2.591
NWA100
0.06248
33.56
NWC100
0.06488
34.23
11
0.091
2.311
NWA110
0.07849
42.16
NWC110
0.08151
43.01
12
0.081
2.057
NWA120
0.09907
53.21
NWC120
0.1029
54.29
13
0.072
1.829
NWA130
0.01254
67.35
NWC130
0.1302
68.71
14
0.064
1.626
NWA140
0.01587
85.24
NWC140
0.1648
86.96
15
0.057
1.448
NWA150
0.2001
107.50
NWC150
0.2078
109.6
16
0.051
1.295
NWA160
0.2499
134.20
NWC160
0.2595
136.9
17
0.045
1.143
NWA170
0.3210
172.40
NWC170
0.3333
175.9
18
0.040
1.016
NWA180
0.4063
218.20
NWC180
0.4219
222.6
19
0.0360
0.9140
NWA190
0.5015
269.40
NWC190
0.5208
274.8
20
0.0320
0.8130
NWA200
0.6348
341.00
NWC200
0.6592
347.8
21
0.0285
0.7239
NWA210
0.8002
429.80
NWC210
0.831
438.5
22
0.0253
0.6426
NWA220
1.015
545.50
NWC220
1.055
556.4
23
0.0226
0.5740
NWA230
1.273
683.60
NWC230
1.322
697.3
24
0.0201
0.5105
NWA240
1.609
864.20
NWC240
1.671
881.6
25
0.0179
0.4547
NWA250
2.029
1090
NWC250
2.107
1112
26
0.0159
0.4039
NWA260
2.571
1381
NWC260
2.670
1409
27
0.0142
0.3607
NWA270
3.224
1731
NWC270
3.348
1766
28
0.0126
0.3200
NWA280
4.094
2199
NWC280
4.252
2243
29
0.0113
0.2870
NWA290
5.090
2734
NWC290
5.286
2289
30
0.0100
0.2540
NWA300
6.500
3491
NWC300
6.750
3562
31
0.0089
0.2261
NWA310
8.206
4408
NWC310
8.522
4497
32
0.0080
0.2032
NWA320
10.160
5455
NWC320
10.55
5565
33
0.0071
0.1803
NWA330
12.890
5626
NWC330
13.39
7065
34
0.0063
0.1600
NWA340
16.380
8797
NWC340
17.01
8974
35
0.0056
0.1422
NWA350
20.730
11130
NWC350
21.52
11360
36
0.0050
0.1270
NWA360
26.000
13970
NWC360
27.00
14250
37
0.0045
0.1143
NWA370
32.100
17240
NWC370
33.33
17590
38
0.0040
0.1016
NWA380
40.630
21820
NWC380
42.19
22260
39
0.0035
0.0889
NWA390
53.060
28500
NWC390
55.10
29080
40
0.00310
0.0787
NWA400
67.640
36330
NWC400
70.24
37060
41
0.00275
0.0699
NWA410
85.950
46170
NWC410
89.26
47100
42
0.00250
0.0635
NWA420
104.000
55860
NWC420
108.00
55990
43
0.00225
0.0672
NWA430
128.400
68970
NWC430
133.30
70350
44
0.00200
0.0508
NWA440
162.500
87280
NWC440
168.80
89040
45
0.00175
0.0445
NWA450
212.00
114000
NWC450
220.40
116300
46
0.00150
0.0381
NWA460
288.900
155200
NWC460
300.00
158300
The
Richards
NWA
or Type A heater wire is composed of 80% Nickel and 20% Chromium. It has a
lower
temperature coefficient of re-
sistance when compared to Type C wire. Type A has a usable temperature range up to
1150°C
or
2100°F
. Our
NWC
or Type C is composed of 60%
Nickel, 16% Chromium, and 24% Iron. The Type C has a usable temperature range up to
1000°C
or
1850°F
. It has a
higher
coefficient of
resistance than the Type A. Both types have excellent corrosion resistance. The Type C wire is very useful in applications where a
high resistance is required within a limited space. In heating and technical applications, the Type A is most commonly used.
Heater Wire - Type A (80%) and Type C (60%)
Manufacturing, Engineering and Sales Since 1938
Phone: 617.527.4385 Fax: 617.964.3746 Email:
sales@asrichards.comNWA
NWC
Page 165
Visit our website at
www.asrichards.com