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Physical Properties

Physical Property British Units Metric Units
Density RT 0.291 lb/in3 RT 8.05 g/cm3
Melting Range 2475-2550°F - 1355-1400°C -
Electrical Resistivity RT 53.5 µohm-in RT 135.9 µohm-cm
200°F 53.9 µohm-in 100°C 136.9 µohm-cm
400°F 53.9 µohm-in 200°C 136.9 µohm-cm
600°F 53.9 µohm-in 300°C 136.9 µohm-cm
800°F 54.3 µohm-in 400°C 137.7 µohm-cm
1000°F 54.3 µohm-in 500°C 137.9 µohm-cm
1200°F 53.5 µohm-in 600°C 136.8 µohm-cm
1400°F 51.6 µohm-in 700°C 133.7 µohm-cm
1600°F 49.6 µohm-in 800°C 129.2 µohm-cm
1800°F 48.0 µohm-in 900°C 124.9 µohm-cm
1900°F 47.6 µohm-in 1000°C 121.6 µohm-cm
2000°F 47.6 µohm-in 1050°C 120.9 µohm-cm
2100°F 48.0 µohm-in 1100°C 121.0 µohm-cm
2200°F 48.4 µohm-in 1150°C 121.9 µohm-cm
- - 1200°C 122.9 µohm-cm
Thermal Conductivity RT 83 Btu-in/ft2-hr-°F RT 12.0 W/m-°C
200°F 88 Btu-in/ft2-hr-°F 100°C 12.8 W/m-°C
400°F 99 Btu-in/ft2-hr-°F 200°C 14.2 W/m-°C
600°F 112 Btu-in/ft2-hr-°F 300°C 15.9 W/m-°C
800°F 132 Btu-in/ft2-hr-°F 400°C 18.4 W/m-°C
1000°F 153 Btu-in/ft2-hr-°F 500°C 21.1 W/m-°C
1200°F 175 Btu-in/ft2-hr-°F 600°C 23.9 W/m-°C
1400°F 200 Btu-in/ft2-hr-°F 700°C 26.9 W/m-°C
1600°F 215 Btu-in/ft2-hr-°F 800°C 29.7 W/m-°C
1800°F 225 Btu-in/ft2-hr-°F 900°C 31.4 W/m-°C
2000°F 234 Btu-in/ft2-hr-°F 1000°C 32.7 W/m-°C
2200°F 255 Btu-in/ft2-hr-°F 1100°C 34.0 W/m-°C
- - 1200°C 36.7 W/m-°C
 Thermal Diffusivity RT 5.2 x 10-3in2/sec  RT 33.6 x 10-3 cm2/sec 
200ºF  5.7 x 10-3in2/sec 100  34.5 x 10-3cm2/sec
400°F  6.2 x 10-3in2/sec 200  36.6 x 10-3cm2/sec
600°F  6.8 x 10-3in2/sec  300  39.4 x 10-3cm2/sec
800°F  7.5 x 10-3in2/sec 400  43.2 x 10-3cm2/sec
1000°F  7.9 x 10-3in2/sec 500  47.2 x 10-3cm2/sec
1200°F  8.1 x 10-3in2/sec 600  49.5 x 10-3cm2/sec
1400°F  8.2 x 10-3in2/sec 700  52.9 x 10-3cm2/sec
1600°F  8.4 x 10-3in2/sec 800  51.7 x 10-3cm2/sec
1800°F  9.1 x 10-3in2/sec 900  53.3 x 10-3cm2/sec
2000°F  9.4 x 10-3in2/sec 1000  54.2 x 10-3cm2/sec
2175°F  5.2 x 10-3in2/sec 1100  58.6 x 10-3cm2/sec
-  -  1200  61.2 x 10-3cm2/sec
Specific Heat RT 0.108 Btu/lb.-°F RT 452 J/Kg-°C
200°F 0.112 Btu/lb.-°F 100°C 470 J/Kg-°C
400°F 0.118 Btu/lb.-°F 200°C 493 J/Kg-°C
600°F 0.124 Btu/lb.-°F 300°C 515 J/Kg-°C
800°F 0.130 Btu/lb.-°F 400°C 538 J/Kg-°C
1000°F 0.136 Btu/lb.-°F 500°C 561 J/Kg-°C
1200°F 0.154 Btu/lb.-°F 600°C 611 J/Kg-°C
1400°F 0.166 Btu/lb.-°F 700°C 668 J/Kg-°C
1600°F 0.173 Btu/lb.-°F 800°C 705 J/Kg-°C
1800°F 0.177 Btu/lb.-°F 900°C 728 J/Kg-°C
1900°F 0.178 Btu/lb.-°F 1000°C 742 J/Kg-°C
2000°F 0.179 Btu/lb.-°F 1100°C 749 J/Kg-°C
2200°F 0.180 Btu/lb.-°F 1200°C 753 J/Kg-°C
Mean Coefficient of
Thermal Expansion 		70-400°F 7.4 µin/in-°F 25-200°C 13.3 µm/m-°C
70-600°F 7.6 µin/in-°F 25-300°C 13.6 µm/m-°C
70-800°F 7.9 µin/in-°F 25-400°C 14.1 µm/m-°C
70-1000°F 8.2 µin/in-°F 25-500°C 14.6 µm/m-°C
70-1200°F 8.6 µin/in-°F 25-600°C 15.2 µm/m-°C
70-1400°F 9.0 µin/in-°F 25-700°C 15.8 µm/m-°C
70-1600°F 9.6 µin/in-°F 25-800°C 16.6 µm/m-°C
70-1800°F 10.2 µin/in-°F 25-900°C 17.6 µm/m-°C
70-2000°F 11.1 µin/in-°F 25-1000°C 18.6 µm/m-°C
- - 25-1100°C 20.2 µm/m-°C
Dynamic Modulus
of Elasticity 		RT 31.6 x 106 psi RT 218 GPa
200°F 30.6 x 106 psi 100°C 210 GPa
400°F 29.6 x 106 psi 200°C 204 GPa
600°F 28.7 x 106 psi 300°C 199 GPa
800°F 27.4 x 106 psi 400°C 190 GPa
1000°F 25.3 x 106 psi 500°C 184 GPa
1200°F 23.9 x 106 psi 600°C 177 GPa
1400°F 22.3 x 106 psi 700°C 170 GPa
1600°F 20.2 x 106 psi 800°C 162 GPa
1800°F 19.0 x 106 psi 900°C 151 GPa
- - 1000°C 137 GPa

RT = Room Temperature

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