Heater Ribbon

 

Resistance ribbon Type - A | resistance Ribbon Type - C

The Arklay S. Richards Co., Inc. offers two types of resistance heating ribbon. The Richards NRA or Type A resistance heating ribbon is composed of 80% Nickel and 20% Chromium. The Type A has a lower temperature coefficient of resistance when compared to the Type C resistance ribbon. The Type A resistance ribbon has a usable temperature range up to 1150°C or 2100°F.

Richards NRC or Type C resistance heating ribbon is composed of 60% Nickel, 16% Chromium, and the balance of 24% Iron. Type C ribbon has a usable temperature range up to 1000°C or 1850°F. It also has a higher coefficient of resistance when compared to the Type A. Both types of ribbon have excellent corrosion resistance.

The Type C ribbon is very useful in applications where a high resistance is required within a limited space. In heating and technical applications, the Type A ribbon is most commonly used. The Type A and Type C resistance ribbon are both offered in large or small spool sizes.

Specifications

  • Type A and Type C Alloys
  • High Electrical Resistance
  • Excellent Corrosion Resistance
  • Available in thicknesses from .002" to .102"
  • Available in widths from 1/64" to 1.0"

 

Resistance Table for Ribbon Widths from 1/64" - 1/6"

Nichrome Ribbon | Type A (80% Ni, 20% Cr)
  Thickness
(inches)
Thickness
(mm)

Width
1/64 (.0156")
.397mm

Width
1/32 (.0312")
.794mm
Width
1/16 (.0625")
1.59 mm
Code 1 Code 2 01 02 03
1 0.102 2.59
2 0.091 2.31
3 0.081 2.06
4 0.072 1.83
5 0.064 1.63
6 0.057 1.45
7 0.051 1.295
8 0.045 1.143
9 0.040 1.016
10 0.036 0.914
11 0.032 0.813
12 0.0285 0.724
13 0.0253 0.6426
14 0.0226 0.5740
15 0.0201 0.5105 .4319
16 0.0179 0.4547 .4850
17 0.0159 0.4039 1.092 .5460
18 0.0142 0.3607 1.223 .6113
19 0.0126 0.3200 1.378 .6890
20 0.0113 0.2870 1.536 .7682
21 0.0100 0.2540 3.472 1.736 .8681
22 0.0089 0.2261 3.902 1.951 .9754
23 0.0080 0.2032 4.340 2.170 1.085
24 0.0071 0.1803 4.891 2.445 1.223
25 0.0063 0.1600 5.512 2.756 1.378
26 0.0056 0.1422 6.201 3.100 1.550
27 0.0050 0.1270 6.945 3.472 1.736
28 0.0045 0.1143 7.716 3.858 1.929
29 0.0040 0.1016 8.681 4.340 2.458
30 0.0035 0.0889 9.921 4.960 2.809
31 0.0031 0.0787 11.20 5.601 3.171
32 0.00275 0.0699 12.63 6.313 3.575
33 0.00250 0.0635 13.89 6.945 3.933
34 0.00225 0.0559 15.43 7.716 4.369
35 0.00200 0.0508 17.36 9.831 4.916

*Note Type-A Nichrome ribbon is 80% Nickel and 20% Chromium

Resistance Table for Ribbon Widths from 3/32" - 3/16"

Nichrome Ribbon | Type A (80% Ni, 20% Cr)
  Thickness
(inches)
Thickness
(mm)

Width
3/32 (.0937")
2.38mm

Width
1/8 (.125")
3.18mm
Width
3/16 (.1875")
4.76 mm
Code 1 Code 2 06 08 12
1 0.102 2.59
2 0.091 2.31
3 0.081 2.06
4 0.072 1.83
5 0.064 1.63 .04521
6 0.057 1.45 .05077
7 0.051 1.295 .05674
8 0.045 1.143 .06430
9 0.040 1.016 .1085 .07234
10 0.036 0.914 .1206 .08038
11 0.032 0.813 .1356 .09043
12 0.0285 0.724 .1523 .1015
13 0.0253 0.6426 .1716 .1144
14 0.0226 0.5740 .1921 .1204
15 0.0201 0.5105 .2879 .2159 .1353
16 0.0179 0.4547 .3233 .2425 .1520
17 0.0159 0.4039 .3640 .2730 .1711
18 0.0142 0.3607 .4076 .3057 .1915
19 0.0126 0.3200 .4593 .3445 .2159
20 0.0113 0.2870 .5121 .3841 .2407
21 0.0100 0.2540 .5787 .4340 .2720
22 0.0089 0.2261 .6503 .4877 .3056
23 0.0080 0.2032 .7234 .6145 .3400
24 0.0071 0.1803 .8151 .6923 .3831
25 0.0063 0.1600 .9186 .7803 .4317
26 0.0056 0.1422 1.170 .8778 .4857
27 0.0050 0.1270 1.311 .9831 .5440
28 0.0045 0.1143 1.456 1.092 .6044
29 0.0040 0.1016 1.639 1.229 .6800
30 0.0035 0.0889 1.873 1.404 .7771
31 0.0031 0.0787 2.114 1.586 .8774
32 0.00275 0.0699 2.383 1.788 .9891
33 0.00250 0.0635 2.622 1.966 1.088
34 0.00225 0.0559 2.913 2.185 1.209
35 0.00200 0.0508 3.277 2.458 1.360

*Note Type-A Nichrome ribbon is 80% Nickel and 20% Chromium

Resistance Table for Ribbon Widths from 1/4" - 1/2"

Nichrome Ribbon | Type A (80% Ni, 20% Cr)
  Thickness
(inches)
Thickness
(mm)

Width
1/4 (.250")
6.35mm

Width
3/8 (.375")
9.53mm
Width
1/2 (.500")
12.70 mm
Code 1 Code 2 16 24 32
1 0.102 2.59 .02128 .01333 .01000
2 0.091 2.31 .02385 .01495 .01121
3 0.081 2.06 .02679 .01679 .01259
4 0.072 1.83 .03014 .01889 .01417
5 0.064 1.63 .03391 .02125 .01594
6 0.057 1.45 .03807 .02386 .01790
7 0.051 1.295 .04255 .02667 .02000
8 0.045 1.143 .04823 .03022 .02267
9 0.040 1.016 .05426 .03400 .02550
10 0.036 0.914 .06028 .03778 .02833
11 0.032 0.813 .06782 .04250 .03188
12 0.0285 0.724 .07615 .04772 .03579
13 0.0253 0.6426 .08578 .05376 .04032
14 0.0226 0.5740 .09027 .06018 .04513
15 0.0201 0.5105 .11015 .06766 .05075
16 0.0179 0.4547 .1140 .07598 .05698
17 0.0159 0.4039 .1283 .08554 .06415
18 0.0142 0.3607 .1437 .09578 .07183
19 0.0126 0.3200 .1619 .1079 .08095
20 0.0113 0.2870 .1805 .1204 .09027
21 0.0100 0.2540 .2040 .1360 .1020
22 0.0089 0.2261 .2292 .1528 .1146
23 0.0080 0.2032 .2550 .1700 .1275
24 0.0071 0.1803 .2873 .1915 .1437
25 0.0063 0.1600 .3238 .2159 .1619
26 0.0056 0.1422 .3643 .2429 .1821
27 0.0050 0.1270 .4080 .2720 .2040
28 0.0045 0.1143 .4533 .3022 .2267
29 0.0040 0.1016 .5100 .3400 .2550
30 0.0035 0.0889 .5829 .3886 .2914
31 0.0031 0.0787 .6581 .4387 .3290
32 0.00275 0.0699 .7418 .4945 .3709
33 0.00250 0.0635 .8160 .5440 .4080
34 0.00225 0.0559 .9067 .6044 .4533
35 0.00200 0.0508 1.020 .6800 .5100

*Note Type-A Nichrome ribbon is 80% Nickel and 20% Chromium

Resistance Table for Ribbon Widths from 5/8" - 1"

Nichrome Ribbon | Type A (80% Ni, 20% Cr)
  Thickness
(inches)
Thickness
(mm)

Width
5/8 (.625")
15.88mm

Width
3/4 (.750")
19.05mm
Width
1 (1.00")
25.4 mm
Code 1 Code 2 40 48 64
1 0.102 2.59 .008000 .006667 .005000
2 0.091 2.31 .008967 .007473 .005604
3 0.081 2.06 .01007 .008395 .006296
4 0.072 1.83 .01133 .009444 .007083
5 0.064 1.63 .01275 .01063 .007969
6 0.057 1.45 .01432 .01193 .008947
7 0.051 1.295 .01600 .01333 .01000
8 0.045 1.143 .01813 .01517 .01133
9 0.040 1.016 .02040 .01700 .01275
10 0.036 0.914 .02267 .01889 .01417
11 0.032 0.813 .02550 .02125 .01594
12 0.0285 0.724 .02863 .02386 .01790
13 0.0253 0.6426 .03225 .02688 .02016
14 0.0226 0.5740 .03611 .03009 .02257
15 0.0201 0.5105 .04060 .03383 .02537
16 0.0179 0.4547 .04559 .03799 .02849
17 0.0159 0.4039 .05232 .04277 .03208
18 0.0142 0.3607 .05747 .04789 .03592
19 0.0126 0.3200 .06476 .05397 .04048
20 0.0113 0.2870 .07221 .06018 .04513
21 0.0100 0.2540 .08180 .06800 .05100
22 0.0089 0.2261 .09169 .07640 .05730
23 0.0080 0.2032 .1020 .08500 .06375
24 0.0071 0.1803 .1149 .09578 .07183
25 0.0063 0.1600 .1295 .1079 .08095
26 0.0056 0.1422 .1457 .1214 .09107
27 0.0050 0.1270 .1632 .1360 .1020
28 0.0045 0.1143 .1813 .1511 .1133
29 0.0040 0.1016 .2040 .1700 .1275
30 0.0035 0.0889 .2331 .1943 .1457
31 0.0031 0.0787 .2632 .2194 .1645
32 0.00275 0.0699 .2967 .2473 .1855
33 0.00250 0.0635 .3264 .2720 .2040
34 0.00225 0.0559 .3627 .3022 .2267
35 0.00200 0.0508 .4080 .3400 .2550

*Note Type-A Nichrome ribbon is 80% Nickel and 20% Chromium

Resistance Table for Ribbon Widths from 1/64" - 1/6"

Nichrome Ribbon|Type C (60% Ni, 16% Cr, 24% Fe)
  Thickness
(inches)
Thickness
(mm)

Width
1/64 (.0156")
.397mm

Width
1/32 (.0312")
.794mm
Width
1/16 (.0625")
1.59 mm
Code 1 Code 2 01 02 03
1 0.102 2.59
2 0.091 2.31
3 0.081 2.06
4 0.072 1.83
5 0.064 1.63
6 0.057 1.45
7 0.051 1.295
8 0.045 1.143
9 0.040 1.016
10 0.036 0.914
11 0.032 0.813
12 0.0285 0.724
13 0.0253 0.6426
14 0.0226 0.5740
15 0.0201 0.5105 .4488
16 0.0179 0.4547 .5040
17 0.0159 0.4039 1.135 .5674
18 0.0142 0.3607 1.271 .6353
19 0.0126 0.3200 1.432 .7160
20 0.0113 0.2870 1.597 .7983
21 0.0100 0.2540 3.609 1.804 .9021
22 0.0089 0.2261 4.055 2.027 1.014
23 0.0080 0.2032 4.511 2.255 1.128
24 0.0071 0.1803 5.082 2.541 1.271
25 0.0063 0.1600 5.728 2.864 1.432
26 0.0056 0.1422 6.444 3.222 1.611
27 0.0050 0.1270 7.217 3.609 1.804
28 0.0045 0.1143 8.019 4.009 2.005
29 0.0040 0.1016 9.021 4.511 2.554
30 0.0035 0.0889 10.31 5.155 2.919
31 0.0031 0.0787 11.64 5.820 3.296
32 0.00275 0.0699 13.12 6.561 3.715
33 0.00250 0.0635 14.43 7.271 4.087
34 0.00225 0.0559 16.04 8.019 4.541
35 0.00200 0.0508 18.04 10.22 5.108

*Note Type-C Nichrome ribbon is 60% Nickel, 16% Cromium, and 24% Iron

Resistance Table for Ribbon Widths from 3/32" - 3/16"

Nichrome Ribbon|Type C (60% Ni, 16% Cr, 24% Fe)
  Thickness
(inches)
Thickness
(mm)

Width
3/32 (.0937")
2.38mm

Width
1/8 (.125")
3.18mm
Width
3/16 (.1875")
4.76 mm
Code 1 Code 2 06 08 12
1 0.102 2.59
2 0.091 2.31
3 0.081 2.06
4 0.072 1.83
5 0.064 1.63 .04699
6 0.057 1.45 .05276
7 0.051 1.295 .05896
8 0.045 1.143 .06682
9 0.040 1.016 .1128 .07518
10 0.036 0.914 .1253 .08353
11 0.032 0.813 .1410 .09397
12 0.0285 0.724 .1583 .1055
13 0.0253 0.6426 .1783 .1189
14 0.0226 0.5740 .1996 .1251
15 0.0201 0.5105 .2992 .2244 .1406
16 0.0179 0.4547 .3360 .2520 .1579
17 0.0159 0.4039 .3783 .2837 .1778
18 0.0142 0.3607 .4235 .3177 .1991
19 0.0126 0.3200 .4773 .3580 .2243
20 0.0113 0.2870 .5322 .3992 .2501
21 0.0100 0.2540 .6014 .4511 .2827
22 0.0089 0.2261 .6758 .5068 .3176
23 0.0080 0.2032 .7518 .6386 .3533
24 0.0071 0.1803 .8471 .7195 .3981
25 0.0063 0.1600 .9546 .8109 .4487
26 0.0056 0.1422 1.216 .9122 .5048
27 0.0050 0.1270 1.362 1.022 .5653
28 0.0045 0.1143 1.514 1.135 .6281
29 0.0040 0.1016 1.703 1.277 .7067
30 0.0035 0.0889 1.946 1.460 .8076
31 0.0031 0.0787 2.197 1.648 .9118
32 0.00275 0.0699 2.477 1.858 1.028
33 0.00250 0.0635 2.724 2.043 1.131
34 0.00225 0.0559 3.027 2.270 1.256
35 0.00200 0.0508 3.406 2.554 1.413

*Note Type-C Nichrome ribbon is 60% Nickel, 16% Cromium, and 24% Iron

Resistance Table for Ribbon Widths from 1/4" - 1/2"

Nichrome Ribbon|Type C (60% Ni, 16% Cr, 24% Fe)
  Thickness
(inches)
Thickness
(mm)

Width
1/4 (.250")
6.35mm

Width
3/8 (.375")
9.53mm
Width
1/2 (.500")
12.70 mm
Code 1 Code 2 16 24 32
1 0.102 2.59 .02211 .01386 .01039
2 0.091 2.31 .02478 .01553 .01165
3 0.081 2.06 .02784 .01745 .01309
4 0.072 1.83 .03132 .01963 .01472
5 0.064 1.63 .03524 .02208 .01656
6 0.057 1.45 .03957 .02480 .01860
7 0.051 1.295 .04422 .02771 .02078
8 0.045 1.143 .05012 .03141 .02356
9 0.040 1.016 .05638 .03533 .02650
10 0.036 0.914 .06265 .03926 .02944
11 0.032 0.813 .07048 .04417 0.3313
12 0.0285 0.724 .07913 .04959 .03719
13 0.0253 0.6426 .08914 .05586 .04190
14 0.0226 0.5740 .09381 .06254 .04690
15 0.0201 0.5105 .1055 .07032 .05274
16 0.0179 0.4547 .1184 .07896 .05922
17 0.0159 0.4039 .1333 .08889 .06667
18 0.0142 0.3607 .1493 .09953 .07465
19 0.0126 0.3200 .1683 .1122 .08413
20 0.0113 0.2870 .1876 .1251 .09381
21 0.0100 0.2540 .2120 .1413 .1060
22 0.0089 0.2261 .2382 .1588 .1191
23 0.0080 0.2032 .2650 .1767 .1325
24 0.0071 0.1803 .2886 .1991 .1493
25 0.0063 0.1600 .3365 .2243 .1683
26 0.0056 0.1422 .3786 .2524 .1893
27 0.0050 0.1270 .4240 .2627 .2120
28 0.0045 0.1143 .4711 .3141 .2356
29 0.0040 0.1016 .5300 .3533 .2650
30 0.0035 0.0889 .6057 .4038 .3029
31 0.0031 0.0787 .6839 .4559 .3419
32 0.00275 0.0699 .7709 .5139 .3855
33 0.00250 0.0635 .8480 .5653 .4240
34 0.00225 0.0559 .9422 .6281 .4711
35 0.00200 0.0508 1.060 .7067 .5300

*Note Type-C Nichrome ribbon is 60% Nickel, 16% Cromium, and 24% Iron

Resistance Table for Ribbon Widths from 5/8" - 1"

Nichrome Ribbon|Type C (60% Ni, 16% Cr, 24% Fe)
  Thickness
(inches)
Thickness
(mm)

Width
5/8 (.625")
15.88mm

Width
3/4 (.750")
19.05mm
Width
1 (1.00")
25.4 mm
Code 1 Code 2 40 48 64
1 0.102 2.59 .008314 .006928 .005196
2 0.091 2.31 .009319 .007766 .005824
3 0.081 2.06 .01047 .008724 .006543
4 0.072 1.83 .01178 .009815 .007361
5 0.064 1.63 .01325 .01104 .008281
6 0.057 1.45 .01488 .01240 .009298
7 0.051 1.295 .01663 .01386 .01039
8 0.045 1.143 .01884 .01570 .01178
9 0.040 1.016 .02120 .01767 .01325
10 0.036 0.914 .02356 .01963 .01472
11 0.032 0.813 .02650 .02208 .01656
12 0.0285 0.724 .02975 .02480 .01860
13 0.0253 0.6426 .03352 .02793 .02095
14 0.0226 0.5740 .03752 .03127 .02345
15 0.0201 0.5105 .04219 .03516 .02637
16 0.0179 0.4547 .04737 .03948 .02961
17 0.0159 0.4039 .05333 .04444 .03333
18 0.0142 0.3607 .05972 .04977 .03732
19 0.0126 0.3200 .06730 .05609 .04006
20 0.0113 0.2870 .07504 .06254 .04690
21 0.0100 0.2540 .08480 .07067 .05300
22 0.0089 0.2261 .09528 .07940 .05955
23 0.0080 0.2032 .1060 .08833 .06625
24 0.0071 0.1803 .1194 .09953 .07465
25 0.0063 0.1600 .1346 .1122 .0841
26 0.0056 0.1422 .1514 .1262 .09464
27 0.0050 0.1270 .1696 .1413 .1060
28 0.0045 0.1143 .1884 .1570 .1178
29 0.0040 0.1016 .2120 .1767 .1325
30 0.0035 0.0889 .2423 .2019 .1514
31 0.0031 0.0787 .2735 .2280 .1710
32 0.00275 0.0699 .3084 .2570 .1927
33 0.00250 0.0635 .3392 .2827 .2120
34 0.00225 0.0559 .3769 .3141 .2356
35 0.00200 0.0508 .4240 .3533 .2650

*Note Type-C Nichrome ribbon is 60% Nickel, 16% Cromium, and 24% Iron

Accessories and Related Products