电炉加热线

0Cr13Al4, 0Cr21Al4,0Cr21Al6, 0Cr25Al5, 0Cr27Al7No2 and so on.Fe-Cr-Al alloy comparison Grade 0Cr13Al4 0Cr25Al5 0Cr21Al6 0Cr23Al5 0Cr21Al4 0Cr21Al6Nb 0Cr27Al7Mo2 Chemical composition Cr 12.0-15.0 23.0-26.0 19.0-22.0 22.5-24.5 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 4.2-5.0 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 Maximal Temperature (oC) 950 1250 1250 1250 1100 1350 1400 Resistivity 20oC(10-6ohm*m) 1.25 1.42 1.42 1.35 1.23 1.45 1.53 Density(g/cm3) 7.4 7.1 7.16 7.25 7.35 7.1 7.1 Thermal conductivity (KJ/m*h*oC) 52.7 46.1 63.2 60.2 46.9 46.1 45.2 Extend strength (a*10-6/oC) 15.4 16 14.7 15 13.5 16 16 Melting point ( oC) 1450 1500 1500 1500 1500 1510 1520 Tensile strength(N/mm2) 588-735 637-784 637-784 637-784 637-784 637-784 686-784 Percentage elongation (%)) >16 >12 >12 >12 >12 >12 >10 curve strength(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 Microstructure Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Magnetism Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic