158 / 192
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<et,
16%
Chromium, and the balance
lron.
The
Type
C
has
a
usable
temperature range
up
to 1000'C
or
1850"F.
lt
has
a
higher
coelticient
of
resistance
when
compared
to
the Type
A
wire.
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.
ln heating and
technical
applications, the Type
A is most
commonly
used. The Type A and Type C
wire are
both
offered
in large
or small spool
sizes.
t
ruot"r
Chromium-Aluminum
etectrical
resistance
alloy
wire
is
also
available.
hl,
Type
C
16o,ol/0
iliclrel,
I5olo
Chtomium,24o/o
lronf
0
0.410
10.414
NWA91O
0.003867
2.A77
NWC910
0.004015
2.119
0
0.365
9.271
NWA92O
0.004879
2.621
NWC920
0.005067
2.673
0
0.325
8.255
NWAg3O
0.006154
3.305
NWC930
0.006391
3.372
1
0.289
7.341
NWAOI
O
a.aa7782
4.180
NWC010
0.008082
4.264
2
0.258
6.553
NWAO2O
0.009765
5.245
NWC020
0.01014
5.351
3
0.229
5.817
NWAO3O
0.01240
6.658
NWC030
0,01287
6.792
4
o.204
5.182
NWAO4O
0.01562
8.390
NWC040
0.01622
8.559
5
0.1
82
4.623
NWAOsO
0.01
962
10.54
NWC050
0.02038
10.75
6
0j62
4.115
NWAO6O
a.42477
13.30
NWC060
a.a2572
13.57
7
0.144
3.658
NWAOTO
0.03135
16.84
NWC070
0.03255
17
.18
8
0.1
28
3.251
NWAOSO
0.03967
21 .31
NWC080
0.a4120
21
.74
9
0.114
2.896
NWAO9O
0.05002
26.87
NWC090
0.05194
17 .41
10
0.102
2.591
NWA1
OO
0.06248
33.56
NWC100
0.06488
34.23
'1
1
0.091
2.311
NWA11O
0.07849
42.16
NWC110
0.08151
43.01
12
0.081
2.057
NWAl20
0,09907
53.21
NWC120
0.1029
54.29
13
a.072
1.829
NWA130
0.01254
67.35
NWC130
0.1302
68.71
14
0.064
1.626
NWAl40
0.1587
85.24
NWC140
0.1
648
86.96
l5
0.057
1.448
NWA150
0.2001
107.50
NWC150
0.2078
109.6
16
0.051
1.295
NWAl60
0.2499
134.20
NWC160
0.2595
136.9
17
0.045
1
.143
NWA170
0.3210
172.40
NWC170
0.3333
175.9
1B
0.040
1.016
NWAl80
0.4063
218.20
NWC180
a.4219
222.6
19
0.0360 0 9140
NWA190
0.5015
269.40
NWC190
0.5208
274.8
2A
0.0320 0.8130
NWA2OO
0.6348
341.00
NWC200
0.6592
347.8
21
0.0285
0.7239
NWA21O
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
NWA23O
1.273
683.60
NWC230
1.322
697.3
24
0.02c
1
0.5105
NWA24O
1.609
864.20
NWC240
1
.671
881.6
25
0.0179 0.4547
NWA25O
2.029
1
090
NWC250
2.107
1112
26
0.0159 0.4039
NWA26O
2.571
1
381
NWC260
2.670
1
409
27
0.4142
0.3607
NWA27O
3.224
1731
NWC270
3.348
1766
28
0.0126 0.3200
NWA28O
4.094
2199
NWC280
4.252
2243
29
0.0113
0.2870
NWA29O
5.090
2734
NWC290
5.286
2289
30
0.0100
0.2540
NWA3OO
6.500
3491
NWC300
6.750
3562
31
0.0089
a.2261
NWA31O
8.206
4408
NWC310
8.522
4497
J/.
0.0080
0.2032
NWA32O
10.160
5455
NWC320
10.55
5565
33
0.0071
0.1803
NWA33O
12.890
5626
NWC330
13.39
7065
34
0.0063
0.1
600
NWA340
16.380
8797
NWC340
17.O1
8974
QR
0.0056
a.1422
NWA35O
2A.73A
11130
NWC350
21
.52
11360
JO
0.0050
0.1270
NWA36O
26.000
1
3970
NWC360
27.00
14250
37
0.0045 0.1143
NWA37O
32.100
17244
NWC370
33.33
1
7590
3B
0.0040 0.1016
NWA38O
40.630
2182A
NWC380
42.19
2226A
39
0.0035 0.0889
NWA39O
53.060
28500
NWC390
55.10
29080
40
0.00310 a.0787
NWA4OO
67.640
36330
NWC400
70.24
37060
41
a.00275
0.0699
NWA41O
85.950
46170
NWC410
89.26
47 1AA
42
0.00250 0.0635
NWA42O
104.000
55860
NWC420
108.00
55990
43
0.00225 0.0672
NWA43O
n8.404
68970
NWC430
133.30
70350
44
0.00200 0.0508
NWA44O
162.500
8728A
NWC440
168.80
89040
45
0.00175
4.0445
NWA45O
212.244
1
1
4000
NWC450
220.40
1 1
6300
46
0.00150
0.0381
NWA46O
288.900
1
55200
NWC460
300"00
1
58300
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