Cr21Al6Nb

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Chemical Content, %

C P S Mn Si Cr Ni Al Fe Nb
Max 0.05 Max 0.025 Max 0.02 Max 0.50 Max 0.6 21.0~23.0 Max 0.60 5.0~7.0 Bal. 0.50

Mechanical Properties

Property Name Value
Max Continuous Service Temp 1350℃
Resisivity at 20℃ 1.45 ohm mm2/m
Density 7.1 g/cm3
Thermal Conductivity 46.1 KJ/m·h·℃
Coefficient of Thermal Expansion 14.7×10-6/℃
Melting Point 1510℃
Tensile Strength 650~800 Mpa
Elongation Min 12%
Section Variation Shrink Rate 65~75%
Repeatedly Bend Frequency Min 5 times
Continuous Service Time -
Hardness 200-260HB
Micrographic Structure Ferrite
Magnetic Property Magnetic
Fast Life ≥50 hours/1350℃

Temperature Factor of Electrical Resistivity

20℃ 100℃ 200℃ 300℃ 400℃ 500℃ 600℃ 700℃ 800℃ 900℃ 1000℃ 1100℃ 1200℃ 1300℃
1 1.000 1.002 1.006 1.011 1.020 1.037 1.043 1.046 1.049 1.052 1.055 1.058 -