Kanthal Wire

Kanthal Wire



Resistance Wire Guides  »  Kanthal Wire  »  Kanthal A1  |  Kanthal D

What is Kanthal Wire?

Kanthal wire is a ferritic iron-chromium-aluminum (FeCrAl) alloy. It does not easily rust or oxidize in industrial applications and has excellent resistance to corrosive elements.


Kanthal wire has a higher maximum operating temperature than Nichrome wire. Compared to Nichrome, it has a higher surface load, higher resistivity, higher yield strength, and lower density. Kanthal wire also lasts 2 to 4 times longer than Nichrome wire due to its superior oxidation properties and resistance to sulfuric environments.




    Click image to enlarge


       
       




Kanthal Wire Types

Kanthal A1

Kanthal A1 is for use at temperatures up to 1400°C (2550°F).


This alloy is most typically used in large-scale industrial applications such as industrial furnaces and is known for its high resistivity and ability to withstand elements without oxidation, even in sulfuric and hot atmospheres. This type of Kanthal wire also has a higher wet corrosion resistance and a higher hot and creep strength than Kanthal D, making it a popular choice for large-scale industrial applications.


Kanthal A1 is also often found in glass, ceramics, electronics, and in the steel industry. It ahs a slightly higher tensile strength than Kanthal D.




Kanthal D

Kanthal D is for use at temperatures up to 1300°C (2370°F).


This type of kanthal wire does not withstand sulfuric corrosion as well as Kanthal A1. This type of Kanthal wire is often found in home appliances such as dishwashers, ceramics for panel heaters, and laundry dryers. It can also be found in industrial applications, most commonly in furnace heating elements.


Depending on the resistivity needed, maximum operating temperature, and corrosive nature of the element, you may want to select Kanthal A-1 or Kanthal D wire.


Product Selection

View our selection of Kanthal wire below.


Kanthal A1

  • Melting Temperature: 1500°C (2732°F)
  • Maximum Operating Temperature: 1400°C (2550°F)
  • Density: 0.256 lbs/cubic in.
  • Specific heat capacity @ 68°F: 0.11 Btu/lb°F

Gauge (AWG) Average Wire
Diameter (in.)
Feet per Pound Resistance
ohms/ft. @ 68°F
16 0.0508 159 0.324
18 0.0403 253 0.515
20 0.032 401 0.817
22 0.0253 641 1.31
24 0.0201 1018 2.07
26 0.0159 1626 3.31
27 0.0142 2040 4.15
28 0.0126 2609 5.27
29 0.0113 3226 6.55
30 0.01 4142 8.36
31 0.0089 5181 10.6
32 0.008 6473 13.1
33 0.0071 8217 16.6
34 0.0063 10437 21.1
36 0.005 16447 33.4

Gauge
(AWG)
Spool Increment
25 ft. 50 ft. 100 ft. 250 ft. 500 ft. 1000 ft. 2500 ft. 5000 ft. 8 oz. 1 lb. 1.5 lb.
16 RW0126 RW0127 - - - - - - RW0128 RW0129 RW0130
18 RW0367 RW0368 - - - - - - RW0369 RW0370 RW0371
20 RW0359 RW0360 RW0361 - - - - - RW0362 RW0363 RW0364
22 RW0239 RW0240 RW0241 RW0242 - - - - RW0243 RW0244 RW0245
24 RW0248 RW0249 RW0250 RW0251 - - - - RW0253 RW0254 RW0255
26 RW0157 RW0158 RW0159 RW0160 RW0161 - - - RW0162 RW0163 -
27 RW0179 RW0180 RW0181 RW0182 RW0183 - - - RW0184 RW0185 RW0186
28 RW0116 RW0117 RW0118 RW0119 RW0120 RW0121 - - RW0122 RW0123 RW0124
29 RW0168 RW0169 RW0170 RW0171 RW0172 RW0173 - - RW0174 RW0175 -
30 RW0105 RW0106 RW0107 RW0108 RW0109 RW0110 - - RW0111 RW0112 RW0113
31 - - RW0257 RW0258 RW0259 RW0260 - - RW0261 RW0262 RW0263
32 - - RW0097 RW0098 RW0099 RW0100 RW0101 - RW0102 RW0103 RW0104
33 - - RW0086 RW0087 RW0088 RW0089 RW0090 - RW0091 RW0092 RW0093
34 - - RW0075 RW0076 RW0077 RW0078 RW0079 - RW0080 RW0081 RW0082
36 - - RW0189 RW0190 RW0191 RW0192 RW0193 RW0194 RW0195 RW0196 -



Flat Ribbon Kanthal A-1

Thickness x Width Feet per Pound Resistance
ohms/ft. @ 68°F
Equivalent Round Wire
Millimeters Inches AWG Ohms/ft. @ 68°F
0.4 x 0.1 0.0157 x 0.004 5618 11.4 32 13.1
0.5 x 0.1 0.0197 x 0.004 4444 9.2 31 10.6
0.6 x 0.1 0.0236 x 0.004 3690 7.68 30 8.36
0.7 x 0.1 0.0276 x 0.004 3236 6.58 29 6.55
0.8 x 0.1 0.0315 x 0.004 2809 5.76 28 5.27
0.9 x 0.1 0.0354 x 0.004 2481 5.12 27 4.15

Thickness x Width Spool Increment
Millimeters Inches 25 ft. 50 ft. 100 ft. 250 ft. 500 ft. 1000 ft. 8 oz. 1 lb.
0.4 x 0.1 0.0157 x 0.004 RW0314 RW0315 RW0316 RW0317 RW0318 RW0319 RW0320 RW0321
0.5 x 0.1 0.0197 x 0.004 RW0322 RW0323 RW0324 RW0325 RW0326 RW0327 RW0328 RW0329
0.6 x 0.1 0.0236 x 0.004 RW0330 RW0331 RW0332 RW0333 RW0334 RW0335 RW0336 RW0337
0.7 x 0.1 0.0276 x 0.004 RW0338 RW0339 RW0340 RW0341 RW0342 - RW0343 RW0344
0.8 x 0.1 0.0315 x 0.004 RW0345 RW0346 RW0347 RW0348 RW0349 - RW0350 RW0351
0.9 x 0.1 0.0354 x 0.004 RW0352 RW0353 RW0354 RW0355 RW0356 - RW0357 RW0358



Kanthal D

  • Melting Temperature: 1500°C (2732°F)
  • Maximum Operating Temperature: 1300°C (2370°F)
  • Density: 0.262 lbs/cubic in.
  • Specific heat capacity @ 68°F: 0.11 Btu/lb°F

Gauge (AWG) Average Wire
Diameter (in.)
Feet per Pound Resistance
ohms/ft. @ 68°F
26 0.0159 1602 3.21
36 0.005 16207 32.5

Gauge
(AWG)
Spool Increment
25 ft. 50 ft. 100 ft. 250 ft. 500 ft. 1000 ft. 2500 ft. 5000 ft. 8 oz. 1 lb. 1.5 lb.
26 RW0146 RW0147 RW0148 RW0149 RW0150 - - - RW0151 RW0152 RW0153
36 - - RW0134 RW0135 RW0136 RW0137 RW0138 RW0139 RW0140 RW0141 RW0142



Back to Top