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Home >>> Heater Accessories >>> Resistance Wire >>> Fecral Alloy Wire
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Product:

fecral alloy wire

   
 
 
   
   
   
   
 

Fecral Alloys Wire:

The heating resistance of Iron-Chrome-Aluminum(Fe-Cr-Al) series resistance wires and strips grow as the increment of the composition of Chrome and Aluminum. They have superior anti-oxidization, anti-sulfur and anti-cementite. They also have series of advantages as small density, high surface load ,high resistivity, high service temperature, long life-span and low price etc.. Therefore the wires are widely used in heating elements of heaters. Our company has full ranges of 0Cr25Al5, 0Cr23Al5, 1Cr20Al3, 0Cr21Al6, 1Cr13Al4, 0Cr21Al6Nb, 0Cr27Al7Mo2 wires and strips.

Further more, Welcome to choose suitable resistance wire winding machine to coil the resistance wires.

Main Characteristics of Fe-Cr-Al High Resistance Wires
Alloy Nomenclature 
Performance
1Cr13Al4 0Cr25Al5 0Cr21Al6 0Cr23Al5 1Cr20Al3 0Cr21Al6Nb 0Cr27Al7Mo2
Main
Chemical
composition
Cr 12.0-15.0 23.0-26.0 19.0-22.0 20.5-23.5 18.0-21.0 21.0-23.0 26.5-27.8
Al 4.0-6.0 4.5-6.5 5.0-7.0 4.2-5.3 3.0-4.2 5.0-7.0 6.0-7.0
Re opportune opportune opportune opportune opportune opportune opportune
Fe Rest Rest Rest Rest Rest Rest Rest
Nb0.5 Mo1.8-2.2
Max. continuous service temp. of element 950 1250 1250 1250 1100 1350 1400
Resistivity at 20ºC (μΩ·m) 1.25 1.42 1.42 1.35 1.23 1.45 1.53
Density (g/cm3) 7.40 7.10 7.16 7.25 7.35 7.10 7.10
Thermal conductivity(KJ/m·h·ºC) 52.7 46.1 63.2 60.2 46.9 46.1 45.2
Coefficient of lines expansion(α×10-6/ºC) 15.4 16.0 14.7 15.0 13.5 16.0 16.0
Melting point (approx.) (ºC) 1450 1500 1500 1500 1500 1510 1520
Tensile strength (N/mm2) 580-680 630-780 630-780 630-780 600-700 650-800 680-830
Elongation at rupture(%) >16 >12 >12 >12 >12 >12 >10
Variation of area(%) 65-75 60-75 65-75 65-75 65-75 65-75 65-75
Bending frequency (F/R) >5 >5 >5 >5 >5 >5 >5
Hardness(H.B.) 200-260 200-260 200-260 200-260 200-260 200-260 200-260
continuous service time(Hours/ ºC) -- ≥80/1300 ≥80/1300 ≥80/1300 ≥80/1250 ≥50/1350 ≥50/1350
Micrographic structure Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite
Magnetic properties Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic
FeCrAl resistance wires with the diameters and characteristics(1)
Diameter
(mm)
Cross 
Sectionl 
Area(mm2)
1Cr13Al4 0Cr25Al5 0Cr21Al6
Resistivity (μΩ • m 1.25±0.08) Resistivity(μΩ • m 1.42±0.07) Resistivity(μΩ • m 1.42±0.07)
Resistance
(20ºC Ω/m)
Length 
(m/kg)
Weight 
(kg/m)
Resistance
(20ºC Ω/m)
Length 
(m/kg)
Weight 
(kg/m)
Resistance
(20ºC Ω/m)
Length 
(m/kg)
Weight 
(kg/m)
0.10 0.0078 159.2 17206 0.0000581 180.6 17933 0.0000558 180.6 17905 0.0000558
0.12 0.0113 110.5 11949 0.0000836 125.6 12453 0.0000803 125.6 12360 0.0000809
0.15 0.0177 70.7 7647 0.000131 80.4 7970 0.000125 80.4 7891 0.000128
0.17 0.0227 55.1 5954 0.000168 62.6 6205 0.000161 62.6 6153 0.000163
0.19 0.0284 44.1 4766 0.000210 50.1 4959 0.000201 50.1 4918 0.000203
0.21 0.0346 36.1 3901 0.000256 41.0 4066 0.000246 41.0 4037 0.000248
0.25 0.0491 25.5 2753 0.000363 28.9 2870 0.000346 28.9 2844 0.000352
0.27 0.0573 21.8 2360 0.000424 24.8 2460 0.000407 24.8 2437 0.000410
0.29 0.0661 18.9 2046 0.000489 21.5 2132 0.000469 21.5 2113 0.000473
0.31 0.0755 16.6 1790 0.000559 18.8 1866 0.000536 18.8 1849 0.000541
0.35 0.0962 13.0 1405 0.000712 14.8 1464 0.000683 14.8 1452 0.000689
0.40 0.1257 9.95 1075 0.000930 11.3 1121 0.000892 11.3 1111 0.000900
0.45 0.1590 7.86 850 0.001177 8.93 886 0.001129 8.93 878 0.001138
0.50 0.1963 6.37 688 0.001453 7.23 717 0.001394 7.23 711 0.001406
0.60 0.283 4.42 480 0.002092 5.02 498 0.00201 5.02 494 0.002026
0.70 0.385 3.25 351 0.002848 3.69 366 0.00273 3.69 362 0.002751
0.80 0.503 2.49 269 0.003720 2.83 280 0.00357 2.83 278 0.003601
0.90 0.636 1.96 212 0.004708 2.23 221 0.00452 2.23 220 0.004554
1.00 0.785 1.59 172 0.005812 1.808 179.5 0.00557 1.808 177.9 0.005620
1.20 1.131 1.11 119 0.008369 1.256 124.5 0.00803 1.256 123.5 0.008098
1.40 1.539 0.812 87.8 0.001139 0.922 91.5 0.01093 0.922 90.8 0.01102
1.60 3.01 0.622 67.2 0.01488 0.706 70.1 0.01427 0.706 69.5 0.01439
1.80 2.54 0.491 53.1 0.01883 0.558 55.5 0.01803 0.558 54.9 0.01819
2.00 3.14 0.398 43.0 0.02325 0.452 44.8 0.0223 0.452 44.5 0.02248
2.20 3.80 0.329 35.5 0.02813 0.374 37.0 0.0270 0.374 36.8 0.02720
2.50 4.91 0.255 27.5 0.03632 0.289 28.7 0.0349 0.289 28.4 0.03516
2.80 6.16 0.203 21.9 0.04557 0.231 22.9 0.0437 0.231 22.7 0.04411
3.00 7.07 0.1768 19.1 0.05231 0.201 19.92 0.0502 0.201 19.8 0.05062
3.50 9.62 0.1299 14.0 0.07120 0.1476 14.64 0.0683 0.1476 14.5 0.06888
4.00 12.57 0.0995 10.75 0.09299 0.1130 11.21 0.0892 0.1130 11.1 0.09000
4.50 15.90 0.0786 8.50 0.1177 0.0893 8.86 0.1129 0.0893 8.78 0.1138
5.00 19.63 0.0637 6.88 0.1453 0.0723 7.17 0.1394 0.0723 7.11 0.1406
5.50 23.80 0.0526 5.69 0.1758 0.0598 5.92 0.1690 0.0598 5.87 0.1704
6.00 28.30 0.0442 4.78 0.2092 0.0502 4.98 0.201 0.0502 4.94 0.2026
6.50 33.20 0.0377 4.07 0.2456 0.0428 4.24 0.236 0.0428 4.21 0.2377
7.00 38.50 0.0325 3.51 0.2848 0.0369 3.66 0.273 0.0369 3.63 0.2757

FeCrAl resistance wires with the diameters and characteristics(2)
Diameter
(mm)
Cross
Sectional
Area(mm2)
0Cr23Al5 1Cr20Al3
Resistivity μΩ • m 1.35±0.06 Resistivity μΩ • m 1.23±0.06
Resistance
(20ºC Ω/m)
Length 
(m/kg)
Weight 
(kg/m)
Resistance
(20ºC Ω/m)
Length 
(m/kg)
Weight 
(kg/m)
0.10 0.0078 173.1 17683 0.0000566 156.6 17452 0.0000573
0.12 0.0113 119.5 12206 0.0000819 108.8 12033 0.0000831
0.15 0.0177 76.4 7793 0.000128 69.6 7692 0.000130
0.17 0.0227 59.5 6076 0.000165 54.2 5988 0.000167
0.19 0.0284 47.5 4854 0.00206 43.4 4785 0.000209
0.21 0.0346 35.5 3986 0.000276 35.5 3937 0.000254
0.25 0.0491 27.5 2809 0.000356 25.1 2770 0.000361
0.27 0.0573 21.9 2407 0.000447 21.5 2375 0.000421
0.29 0.0661 19.1 2087 0.000513 18.6 2058 0.000486
0.31 0.0755 16.8 1827 0.000583 16.3 1802 0.000555
0.35 0.0962 14.0 1434 0.000697 12.8 1414 0.000707
0.40 0.1257 10.7 1097 0.000911 9.79 1082 0.000924
0.45 0.1590 8.49 867 0.00115 7.73 855 0.00117
0.50 0.1963 6.88 703 0.00142 6.26 694 0.00144
0.60 0.283 4.77 496 0.00205 4.35 480 0.00208
0.70 0.385 3.51 358 0.00279 3.20 353 0.00283
0.80 0.503 2.69 274 0.00365 2.45 270 0.003697
0.90 0.636 2.12 217 0.00461 1.93 213 0.004675
1.00 0.785 1.72 176 0.00569 1.57 173 0.005770
1.20 1.131 1.194 122 0.00820 1.09 120 0.008313
1.40 1.539 0.877 89.6 0.01116 0.799 88.4 0.01131
1.60 3.01 0.672 68.6 0.01457 0.612 67.7 0.01477
1.80 2.54 0.532 54.3 0.01842 0.483 53.56 0.01867
2.00 3.14 0.430 43.9 0.02277 0.392 43.33 0.02308
2.20 3.80 0.355 36.3 0.02755 0.324 35.80 0.02793
2.50 4.91 0.275 28.1 0.03849 0.251 27.71 0.03609
3.00 7.07 0.191 19.5 0.05126 0.1740 19.25 0.05196
3.50 9.62 0.140 14.3 0.06975 0.1278 14.14 0.07071
4.00 12.57 0.107 11.0 0.09113 0.0979 10.82 0.09239
4.50 15.90 0.0849 8.67 0.1153 0.0773 8.55 0.1169
5.00 19.63 0.0688 7.03 0.1423 0.0626 6.93 0.1443
5.50 23.80 0.0568 5.80 0.1726 0.0518 5.72 0.1749
6.00 28.30 0.0477 4.88 0.2052 0.0435 4.81 0.2080
6.50 33.20 0.0407 4.15 0.2407 0.0371 4.09 0.2440
7.00 38.50 0.0351 3.58 0.2791 0.0320 3.53 0.2830

FeCrAl resistance wires with the diameters and characteristics(3)

Diameter Cross 0Cr21Al6Nb 0Cr27Al7Mo2
(mm) Sectional Resistivity (μΩ • m 1.45±0.07) Resistivity (μΩ • m 1.53±0.07)
Area(mm2) Resistance Length  Weight  Resistance Length  Weight
(20ºC Ω/m) (m/kg) (kg/m) (20ºC Ω/m) (m/kg) (kg/m)
0.1 0.0078 184.6 17933 0.0000558 194.8 17933 0.0000558
0.12 0.0113 128.2 12453 0.0000803 135.3 12453 0.0000803
0.15 0.0177 82.1 7970 0.000125 80.6 7970 0.000125
0.17 0.0227 63.9 6205 0.000161 67.4 6205 0.000161
0.19 0.0284 51.1 4968 0.000201 54 4968 0.000201
0.21 0.0346 41.9 4066 0.000246 44.2 4066 0.000246
0.25 0.0491 29.5 2870 0.000349 31.2 2870 0.000349
0.27 0.0573 25 2460 0.000407 26.7 2460 0.000407
0.29 0.0661 22 2131 0.000469 23.2 2132 0.000469
0.31 0.0755 19.2 1866 0.000536 20.3 1866 0.000536
0.35 0.0962 15.1 1464 0.000683 15.9 1464 0.000683
0.4 0.1257 11.54 1121 0.000892 12.19 1121 0.000892
0.45 0.159 9.12 886 0.001129 9.62 886 0.001129
0.5 0.1963 7.38 717 0.001394 7.79 717 0.001394
0.6 0.283 5.13 498 0.00201 5.41 498 0.00201
0.7 0.385 3.77 366 0.00273 3.98 366 0.00273
0.8 0.503 2.88 280 0.00357 3.04 280 0.00357
0.9 0.636 2.28 221 0.00452 2.41 221 0.00452
1 0.785 1.85 179.5 0.00557 1.95 179.5 0.00557
1.2 1.131 1.282 124.5 0.00803 1.35 124.5 0.00803
1.4 1.539 0.942 91.5 0.01093 0.994 91.5 0.01093
1.6 3.01 0.721 70.1 0.01427 0.761 70.1 0.01427
1.8 2.54 0.57 55.5 0.01803 0.601 55.5 0.01803
2 3.14 0.462 44.8 0.0229 0.487 44.8 0.0229
2.2 3.8 0.381 37 0.027 0.402 37 0.027
3 7.07 0.205 19.92 0.052 0.216 19.92 0.052
3.5 9.62 0.151 14.64 0.0683 0.159 14.64 0.0683
4 12.57 0.1154 11.21 0.0892 0.1218 11.21 0.0892
4.5 15.9 0.0912 8.86 0.1129 0.0962 8.86 0.1129
5 19.63 0.0738 7.17 0.1394 0.0779 7.17 0.1394
5.5 23.8 0.061 5.92 0.169 0.0644 5.92 0.169
6 28.3 0.0513 4.98 0.201 0.0541 4.98 0.201
6.5 33.2 0.0437 4.24 0.236 0.0461 4.24 0.236
7 38.5 0.0377 3.66 0.273 0.0398 3.66 0.273

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