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a Iron-Chrome-Aluminum Alloy–1Cr20Al3
Common Names: FCHW-2(FCHR-2), 0Cr21Al4, 0Cr19Al3
Chemical Composition:
C P S Mn Si Cr Ni Al Fe
0.1 0.025 0.025 0.7 ≤1.0 18~21 ≤0.6 3~4.2 Bal.
Properties:
Max. continuous service Temp. 1100ºC
Resistivity at 20ºC 1.23±0.06 μΩ·m
Density 7.35 g/cm3
Thermal conductivity 46.9 KJ/m·h·ºC
Coefficient of linear expansion 13.5 α×10-6/ºC
Specific heat 0.490 J/g·ºC
Approx. melting point  1500ºC
Elongation ≥12%
Accelerated life ≥80h/1250ºC
Micrographic structure ferrite
Magnetic properties magnetic