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Kanthal AF　Fe-Chrome Heating Wire

Code：AF (Kanthal AF)

Properties and Applications

It is a high-temperature alloy that can be used at heat generation temperatures up to 1,400°C. It has improved shape stability, especially at high temperatures.

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Product Details

Electrical
Resistivity
[μΩm]
1.39
Thermal
Expansion
Coefficient
×10-6/		 Density
g/cm3
(20℃)		 Melting Point
℃		 Max
Operating
Temperature
℃
15.0 7.15 1500 1300
Chemical
Composition		 Cr Al Fe
(％) 22 5.3 BAL

Resistance increase by temperature

℃ 20 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
Coefficient 1.000 1.000 1.010 1.010 1.020 1.030 1.040 1.040 1.050 1.050 1.050 1.060 1.060 1.060
Alloys Metal type Diameter (mm)
AF Wire φ10.00～0.30
AF Ribbon t=1.0、1.2、1.5、2.0、2.5、3.0 w=10、15、20、25、30
Alloys Type Diameter (mm）
A-1 Wire φ10.0～1.00
A-1 Ribbon t=2.90~0.05 w=20、25、30

Kanthal AF (Fe-Chrome)【Resistance・Length・Weight】】

〔Wire〕
Alloys Electrical
Resistivity
(20℃μΩｍ)
Kanthal AF 1.39
Diameter
(mm)		 Tolerance
(mm)		 Cross section
(mm2)		 Resistance Tolerance
(%)		 Resistance Tolerance
(Ω/ｍ)		 Length
(ｍ/Kg)		 Weight
(ｇ/ｍ)
10.00 ±0.06 78.50 ±5 0.01771 1.782 561.3
8.00 ±0.05 50.24 ±5 0.02767 2.784 359.2
7.50 ±0.05 44.16 ±5 0.03148 3.167 315.7
6.50 ±0.05 33.17 ±5 0.04191 4.217 237.1
6.00 ±0.04 28.26 ±5 0.04919 4.949 202.1
5.50 ±0.04 23.75 ±5 0.05854 5.890 169.8
5.00 ±0.04 19.63 ±5 0.07083 7.127 140.3
4.50 ±0.03 15.90 ±5 0.08744 8.798 113.7
4.00 ±0.03 12.56 ±5 0.1107 11.14 89.80
3.50 ±0.03 9.616 ±5 0.1445 14.54 68.76
3.20 ±0.03 8.038 ±5 0.1729 17.40 57.47
3.00 ±0.03 7.065 ±5 0.1967 19.80 50.51
2.90 ±0.03 6.602 ±5 0.2105 21.18 47.20
2.70 ±0.03 5.723 ±5 0.2429 24.44 40.92
2.60 ±0.02 5.307 ±5 0.2619 26.36 37.94
2.50 ±0.02 4.906 ±5 0.2833 28.51 35.08
2.30 ±0.02 4.153 ±5 0.3347 33.68 29.69
2.00 ±0.02 3.140 ±5 0.4427 44.54 22.45
1.80 ±0.02 2.543 ±5 0.5465 54.99 18.19
1.60 ±0.02 2.010 ±5 0.6917 69.60 14.37
1.50 ±0.02 1.766 ±5 0.7870 79.18 12.63
1.40 ±0.02 1.539 ±5 0.9034 90.90 11.00
1.30 ±0.02 1.327 ±5 1.048 105.4 9.486
1.20 ±0.02 1.130 ±5 1.230 123.7 8.082
1.10 ±0.02 0.9499 ±5 1.463 147.2 6.791
1.00 ±0.02 0.7850 ±5 1.771 178.2 5.613
0.90 ±0.014 0.6359 ±5 2.186 220.0 4.546
0.85 ±0.014 0.5672 ±5 2.451 246.6 4.055
0.80 ±0.014 0.5024 ±5 2.767 278.4 3.592
0.75 ±0.014 0.4416 ±5 3.148 316.7 3.157
0.70 ±0.014 0.3847 ±5 3.614 363.6 2.750
0.65 ±0.014 0.3317 ±5 4.191 421.7 2.371
0.60 ±0.014 0.2826 ±5 4.919 494.9 2.021
0.55 ±0.012 0.2375 ±5 5.854 589.0 1.698
0.50 ±0.012 0.1963 ±5 7.083 712.7 1.403
0.45 ±0.012 0.1590 ±5 8.744 879.8 1.137
0.40 ±0.012 0.1256 ±5 11.07 1114 0.8980
0.35 ±0.012 0.09616 ±5 14.45 1454 0.6876
0.30 ±0.010 0.07065 ±5 19.67 1980 0.5051

Kanthal AF(Fe-Chrome)【Temperature Current Characteristics・Diameter・Temperature・Current】

[Unit：Ampere]
Diameter
(mm)		 200
(℃)		 300
(℃)		 400
(℃)		 500
(℃)		 600
(℃)		 700
(℃)		 800
(℃)		 900
(℃)		 1000
(℃)		 1100
(℃)
8.00 67.1 93.6 117 143 176 211 254 296 343 390
6.50 49.1 68.6 87.4 105 129 154 189 220 254 285
6.00 43.7 60.8 76.4 92.8 115 137 164 195 226 254
5.50 38.2 53.8 75.7 81.9 101 121 148 172 199 226
5.00 33.5 46.0 58.5 70.2 87.4 105 128 148 172 195
4.50 28.1 39.0 49.9 60.1 73.3 89.7 109 125 148 168
4.00 24.2 32.8 42.1 50.7 62.4 73.3 88.1 104 124 140
3.50 19.5 26.5 34.3 41.3 51.5 60.8 74.9 88.1 101 117
3.20 17.2 23.4 30.4 35.9 44.5 53.0 64.7 76.4 88.9 101
2.90 14.7 20.3 26.5 31.2 38.2 46.0 56.2 65.5 76.4 86.6
2.60 12.1 17.2 21.8 26.5 32.8 39.0 48.4 56.2 64.7 72.5
2.30 10.3 14.1 18.7 22.6 27.3 32.8 40.6 46.8 53.8 61.6
2.00 8.58 11.7 15.6 18.7 22.6 27.3 32.0 38.2 43.7 49.9
1.80 7.57 10.3 13.5 16.4 19.5 23.4 25.7 32.8 37.4 42.9
1.60 6.40 8.81 11.7 13.7 16.4 20.3 24.2 27.3 32.0 35.9
1.50 5.93 8.11 10.6 12.5 15.2 17.9 21.8 25.0 28.9 32.8
1.40 5.46 7.41 9.75 11.4 14.0 16.4 20.3 22.6 26.5 30.4
1.30 4.99 6.79 8.81 10.4 12.6 14.8 17.9 20.3 23.4 27.3
1.20 4.60 6.08 8.19 9.20 10.9 12.6 15.6 17.9 21.1 24.2
1.10 4.06 5.46 7.02 8.42 10.1 12.0 14.2 16.4 18.7 21.1
1.00 3.67 4.76 6.24 7.33 8.97 10.5 12.1 13.7 15.6 17.9
0.90 3.20 4.29 5.54 6.40 7.80 9.20 10.9 12.5 14.2 16.4
0.85 3.04 3.98 5.15 6.01 7.25 8.42 10.0 11.5 13.3 15.1
0.80 2.73 3.67 4.76 5.46 6.63 7.80 9.20 10.5 12.1 13.7
0.75 2.57 3.35 4.37 5.07 6.08 7.02 8.35 9.67 10.9 12.5
0.70 2.34 3.04 3.98 4.60 5.54 6.47 7.57 8.58 10.1 11.5
0.65 2.18 2.81 3.67 4.21 5.07 5.85 6.79 7.80 9.05 10.3
0.60 1.95 2.50 3.28 3.74 4.52 5.30 6.08 7.02 8.03 9.36
0.55 1.79 2.26 2.96 3.35 4.06 4.68 5.46 6.24 7.18 8.19
0.50 1.56 2.03 2.65 2.96 3.59 4.13 4.91 5.54 6.40 7.18
0.45 1.40 1.79 2.26 2.57 3.12 3.59 4.06 4.60 5.23 5.93
0.40 1.17 1.48 1.95 2.26 2.65 3.04 3.51 4.06 4.60 5.23
0.35 0.983 1.25 1.64 1.95 2.26 2.57 2.89 3.35 3.74 4.29
(*)Reference value

Kanthal AF (Fe-Chrome)【Resistance・Length・Weight】

[Ribbon]
Alloys Electrical
Resistivity
(20℃μΩｍ)
Kanthal AF 1.39
Method
(mm)		 Cross section
(mm2)		 Resistance Tolerance
許容差(％)		 Resistance Tolerance
(Ω/ｍ)		 Length
(ｍ/Kg)		 Weight
(ｇ/ｍ)
3.0×30 88.20 ±5 0.01544 1.554 643.5
3.0×25 73.50 ±5 0.01853 1.865 536.3
3.0×20 58.80 ±5 0.02317 2.331 429.0
2.5×25 61.25 ±5 0.02224 2.238 446.9
2.5×20 49.00 ±5 0.02780 2.797 357.5
2.0×25 49.00 ±5 0.02780 2.797 357.5
2.0×20 39.20 ±5 0.03475 3.497 286.0
2.0×15 29.40 ±5 0.04633 4.662 214.5
1.5×20 29.40 ±5 0.04633 4.662 214.5
1.5×15 22.05 ±5 0.06178 6.216 160.9
1.2×15 17.64 ±5 0.07722 7.770 128.7
1.2×12 14.11 ±5 0.09653 9.713 103.0
1.0×10 9.80 ±5 0.13900 13.99 71.5

Conductor Resistance Tolerance of Ribbon

Thickness
[mm]		 Width
[mm]		 Resitance Tolerance
[%]
0.08above　3.15below 10below ±8
10above ±7
*We can manufacture products other than the standard (size and tolerance), so please contact us.

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