Iron-Chromium-Aluminum Resistance Wires

0Cr23Al5 resistance wire

Features:
0Cr23Al5 is an Iron-Chromium-Aluminum alloy (FeCrAl alloy) that can be used at temperatures up to 1300°C. As an important member of the FeCrAl heating alloy series, 0Cr23Al5 has significant advantages over nickel-chromium alloys in terms of maximum service temperature, resistivity, cost, and oxidation resistance. Compared with 0Cr25Al5, it has slight advantages in cost and processing performance, but its maximum service temperature is slightly lower. Selection should be based on a comprehensive evaluation of the specific service temperature, usage environment, cost budget, and processing requirements. In high-temperature applications of 1100-1300°C, cost-sensitive situations, and applications with certain processing requirements, 0Cr23Al5 is an ideal choice. In industrial applications, 0Cr23Al5 is used for the ends of electric furnace elements and electric furnace heating elements.
0Cr23Al5 Resistance Wire is also known as Kanthal D, Alloy 815, Alchrome DK, Alferon 901, Resistohm 135, Aluchrom 5, Stablohm 812, KD, Aluchrom I, Icralloy 20, Alferon 20, Alloy K etc.
Specifications:
Bright and soft annealed finish: 0.05 - 1.6mm; Acid-pickled or oxidation finish: 1.0 -12.0mm; Golden color: 1.0-3.9mm; Blue color: 4.0-10.0mm; Rods: 6.0-150.0mm
Flat wires: width 0.2 - 6.0mm and thickness 0.08 - 1.0mm; Strips: width 5.0 - 300mm and thickness 0.05 - 4.0mm

Product Description

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Chemical Composition:
C P S Mn Si Cr Ni Al Fe
0.06 0.025 0.02 0.5 ≤0.6 20.5~23.5 ≤0.6 4.2~5.3 Remainder
Physical Properties:
Max. Operating Temp. 1300ºC Resistivity at 20ºC( μΩ·m) 1.35±0.07
Density 7.25 g/cm3 Thermal conductivity(20ºC) 13 W/(m·K)
Average linear expansion coefficient(20-1000ºC) 15.0×10-6/ºC Specific heat capacity 0.46 J/(g·K)
Approx. melting point  1500ºC Elongation after Fracture
(A/%)
Diameter≤3.0mm: ≥12%
Diameter>3.0mm: ≥15%
Tensile strength(Rm/MPa) ≥600 Accelerated life test ≥80h/1300ºC
Micrographic structure Ferrite Magnetic properties Magnetic
Technical Parameters:
Diameter
(mm)
Ohm per meter
(20ºC   Ω/m)
Length per kg
(m/kg)
Weight per meter
(g/m)
Diameter
(mm)
Ohm per meter
(20ºC   Ω/m)
Length per kg
(m/kg)
Weight per meter
(g/m)
0.05 687.550 70247.76 0.01424 1.1 1.4206 145.14 6.88990
0.06 477.465 48783.17 0.02050 1.2 1.1937 121.96 8.19955
0.07 350.791 35840.69 0.02790 1.3 1.0171 103.92 9.62308
0.08 268.574 27440.53 0.03644 1.4 0.8770 89.60 11.16050
0.09 212.207 21681.41 0.04612 1.5 0.7639 78.05 12.81180
0.1 171.887 17561.94 0.05694 1.6 0.6714 68.60 14.57698
0.11 142.056 14514.00 0.06890 1.7 0.5948 60.77 16.45604
0.12 119.366 12195.79 0.08200 1.8 0.5305 54.20 18.44899
0.13 101.709 10391.68 0.09623 1.9 0.4761 48.65 20.55582
0.15 76.394 7805.31 0.12812 2.0 0.4297 43.90 22.77653
0.17 59.477 6076.80 0.16456 2.2 0.3551 36.28 27.55960
0.19 47.614 4864.80 0.20556 2.4 0.2984 30.49 32.79820
0.21 38.977 3982.30 0.25111 2.6 0.2543 25.98 38.49233
0.25 27.502 2809.91 0.35588 2.8 0.2192 22.40 44.64199
0.27 23.579 2409.05 0.41510 3.0 0.1910 19.51 51.24719
0.29 20.438 2088.22 0.47888 3.2 0.1679 17.15 58.30791
0.31 17.886 1827.47 0.54721 3.4 0.1487 15.19 65.82416
0.35 14.032 1433.63 0.69753 3.6 0.1326 13.55 73.79595
0.40 10.743 1097.62 0.91106 3.8 0.1190 12.16 82.22326
0.45 8.488 867.26 1.15306 4.0 0.1074 10.98 91.10611
0.50 6.875 702.48 1.42353 4.5 0.0849 8.67 115.30617
0.55 5.682 580.56 1.72247 5.0 0.0688 7.02 142.35330
0.60 4.775 487.83 2.04989 5.5 0.0568 5.81 172.24749
0.65 4.068 415.67 2.40577 6.0 0.0477 4.88 204.98875
0.70 3.508 358.41 2.79012 6.5 0.0407 4.16 240.57707
0.80 2.686 274.41 3.64424 7.0 0.0351 3.58 279.01246
0.85 2.379 243.07 4.11401 7.5 0.0306 3.12 320.29492
0.90 2.122 216.81 4.61225 8.0 0.0269 2.74 364.42444
0.95 1.905 194.59 5.13895 8.5 0.0238 2.43 411.40103
1.00 1.719 175.62 5.69413 9.0 0.0212 2.17 461.22468

The above parameters are based on Chinese National Standard GB/T1234-2012. The tolerance of resistance per meter: 0.03-0.06mm is ±10%; 0.07-0.12mm is ±8%; 0.13-0.17mm is ±7%; 0.18-0.32mm is ±6%; A wire diameter above 0.32mm is ±5%. We provide the Iron-Chromium-Aluminium alloy products in various forms, like the wires, strips and rods. Other alloys like 0Cr25Al5, 0Cr21Al6Nb, 0Cr20Al3, 0Cr20Al6RE, 1Cr13Al4 and 0Cr27Al7Mo2 are also available upon request.

0Cr23Al5 Datasheet Download