| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 8.86 g/cc | 0.320 lb/in³ |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
Tensile Strength, Ultimate  | 65.5 MPa
@Temperature 1480 °C | 9500 psi
@Temperature 2700 °F |
| | 89.6 MPa
@Temperature 1370 °C | 13000 psi
@Temperature 2500 °F |
| | 186 MPa
@Temperature 1090 °C | 27000 psi
@Temperature 2000 °F |
| | 310 MPa
@Temperature 871 °C | 45000 psi
@Temperature 1600 °F |
| | 310 MPa
@Temperature 538 °C | 45000 psi
@Temperature 1000 °F |
| | 317 MPa
@Temperature 649 °C | 46000 psi
@Temperature 1200 °F |
| | 321 MPa
@Temperature 760 °C | 46500 psi
@Temperature 1400 °F |
| | 421 MPa
@Temperature 23.0 °C | 61000 psi
@Temperature 73.4 °F |
| Tensile Strength, Yield | 59.3 MPa
@Temperature 1480 °C | 8600 psi
@Temperature 2700 °F |
| | 72.4 MPa
@Temperature 1370 °C | 10500 psi
@Temperature 2500 °F |
| | 138 MPa
@Temperature 1090 °C | 20000 psi
@Temperature 2000 °F |
| | 162 MPa
@Temperature 871 °C | 23500 psi
@Temperature 1600 °F |
| | 172 MPa
@Temperature 760 °C | 25000 psi
@Temperature 1400 °F |
| | 186 MPa
@Temperature 649 °C | 27000 psi
@Temperature 1200 °F |
| | 200 MPa
@Temperature 538 °C | 29000 psi
@Temperature 1000 °F |
| | 296 MPa
@Temperature 23.0 °C | 43000 psi
@Temperature 73.4 °F |
| Elongation at Break | 15 - 17 %
@Temperature 649 °C | 15 - 17 %
@Temperature 1200 °F |
| | 16 - 18 %
@Temperature 760 °C | 16 - 18 %
@Temperature 1400 °F |
| | 18 - 19 %
@Temperature 871 °C | 18 - 19 %
@Temperature 1600 °F |
| | 19 - 21 %
@Temperature 538 °C | 19 - 21 %
@Temperature 1000 °F |
| | 25 - 30 %
@Temperature 23.0 °C | 25 - 30 %
@Temperature 73.4 °F |
| | >= 45 %
@Temperature 1090 °C | >= 45 %
@Temperature 2000 °F |
| | >= 70 %
@Temperature 1370 °C | >= 70 %
@Temperature 2500 °F |
| | >= 70 %
@Temperature 1480 °C | >= 70 %
@Temperature 2700 °F |
| Modulus of Elasticity | 90.0 GPa | 13100 ksi |
| | 64.0 GPa
@Temperature 1200 °C | 9280 ksi
@Temperature 2190 °F |
| Charpy Impact | 107 J
@Temperature -73.3 °C | 79.0 ft-lb
@Temperature -100 °F |
| | 201 J
@Temperature 23.0 °C | 148 ft-lb
@Temperature 73.4 °F |
| |
| Thermal Properties | Metric | English | Comments |
|---|
| CTE, linear | 6.84 µm/m-°C
@Temperature 93.3 °C | 3.80 µin/in-°F
@Temperature 200 °F |
| | 7.02 µm/m-°C
@Temperature 316 °C | 3.90 µin/in-°F
@Temperature 600 °F |
| | 7.20 µm/m-°C
@Temperature 538 °C | 4.00 µin/in-°F
@Temperature 1000 °F |
| | 7.38 µm/m-°C
@Temperature 760 °C | 4.10 µin/in-°F
@Temperature 1400 °F |
| | 7.74 µm/m-°C
@Temperature 982 °C | 4.30 µin/in-°F
@Temperature 1800 °F |
| | 8.10 µm/m-°C
@Temperature 1200 °C | 4.50 µin/in-°F
@Temperature 2200 °F |
| Thermal Conductivity | 38.0 W/m-K
@Temperature 871 °C | 264 BTU-in/hr-ft²-°F
@Temperature 1600 °F |
| | 40.6 W/m-K
@Temperature 1113 °C | 282 BTU-in/hr-ft²-°F
@Temperature 2035 °F |
| | 44.61 W/m-K
@Temperature 1300 °C | 309.6 BTU-in/hr-ft²-°F
@Temperature 2380 °F |
| Melting Point | 2300 - 2400 °C | 4170 - 4350 °F |
| Solidus | 2300 °C | 4170 °F |
| Liquidus | 2400 °C | 4350 °F |
| Maximum Service Temperature, Air | 1480 °C | 2700 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Emissivity (0-1) | 0.28
@Temperature 800 °C | 0.28
@Temperature 1470 °F |
| | 0.40
@Temperature 1200 °C | 0.40
@Temperature 2190 °F |
| | 0.87
@Temperature 37.8 °C | 0.87
@Temperature 100 °F |
| | 0.89
@Temperature 1320 °C | 0.89
@Temperature 2400 °F |
| | 0.89
@Temperature 37.8 °C | 0.89
@Temperature 100 °F |
| | 0.89
@Temperature 37.8 °C | 0.89
@Temperature 100 °F |
| | 0.92
@Temperature 1320 °C | 0.92
@Temperature 2400 °F |
| | 0.92
@Temperature 1320 °C | 0.92
@Temperature 2400 °F |
| |
| Component Elements Properties | Metric | English | Comments |
|---|
| Hafnium, Hf | 10 % | 10 % |
| Niobium, Nb (Columbium, Cb) | 87 - 87.6 % | 87 - 87.6 % |
| Tantalum, Ta | 0.50 % | 0.50 % |
| Titanium, Ti | 0.70 - 1.3 % | 0.70 - 1.3 % |
| Tungsten, W | 0.50 % | 0.50 % |
| Zirconium, Zr | 0.70 % | 0.70 % |
| |
| Descriptive Properties |
|---|
| Enthalpy, BTU/lb | 103 |
| | 145 |
| | 184 |
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