Fecral Resistance Heating Alloy Ribbon
Nominal Analysis
Cr 25%, Al 5%, Fe Bal. ºC
Max contineous working temperature: ºC
Melting Temperature: 1500
Electrical Resistivity: 1.25 ohm mm2/m(Also have other choices)
Size: Thickness 0.01-7mm, width 5mm-300mm
Standard: ASTM B603, DIN 17470, TOCT 10994, JIS C2520, GB/T1234
Properties/Grade |
1Cr13Al4 |
0Cr21Al4 |
0Cr21Al6 |
0Cr23Al5 |
0Cr25Al5 |
0Cr21Al6Nb |
0Cr27Al7Mo2 |
Main Chemical composition(%) |
Cr |
12.0-15.0 |
18.0-21.0 |
19.0-22.0 |
22.5-24.5 |
23.0-26.0 |
21.0-23.0 |
26.5-27.8 |
Al |
4.0-6.0 |
3.0-4.2 |
5.0-7.0 |
4.2-5.0 |
4.5-6.5 |
5.0-7.0 |
6.0-7.0 |
Fe |
Balance |
Balance |
Balance |
Balance |
Balance |
Balance |
Balance |
Re |
opportune |
opportune |
opportune |
opportune |
opportune |
opportune |
opportune |
|
|
|
|
|
|
Nb:0.5 |
Mo:1.8-2.2 |
Max. continuous service temp. of element |
950 |
1100 |
1250 |
1250 |
1250 |
1350 |
1400 |
Resistivity at 20oC (μ Ω @ m) |
1.25+-0.08 |
1.23+-0.06 |
1.42+-0.07 |
1.35+-0.07 |
1.42+-0.06 |
1.45+-0.07 |
1.53+-0.07 |
Density (g/cm3) |
7.4 |
7.35 |
7.16 |
7.25 |
7.1 |
7.1 |
7.1 |
Thermal conductivity(KJ/m@ h@ oC) |
52.7 |
46.9 |
63.2 |
60.2 |
46.1 |
46.1 |
45.2 |
Coefficient of lines expansion(α × 10-6/oC) |
15.4 |
13.5 |
14.7 |
15 |
16 |
16 |
16 |
Melting point (approx. )( oC) |
1450 |
1500 |
1500 |
1500 |
1500 |
1510 |
1520 |
Elongation at rupture (%) |
≥16 |
≥12 |
≥12 |
≥12 |
≥12 |
≥12 |
≥10 |
Micrographic structure |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Magnetic properties |
magnetic |
magnetic |
magnetic |
magnetic |
magnetic |
magnetic |
magnetic |
Has been used extensively as heating elements in industrial furnaces and Brake Resistor. Our company produce many kind of resistivity and surface metal strip for our clients.