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| PRODUCT DATA of Tungsten Carbide |
| Material | Tungsten Carbide |
| General Information | Cemented tungsten carbide is a composite material comprised of individual tungsten carbide grains imbedded in a ductile metal binder matrix of either cobalt or nickel |
| Use in Spacecraft | rotating balls, metrology, coatings |
| Chemical Composition | WC |
| EXPERIENCE IN PRACTICE |
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| Equivalent Designations | Wolfram Carbide |
| PHYSICAL PROPERTIES |
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| Crystal Structure | α-WC hexagonal, β-WC cubic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 550 GPa |
| Shear Modulus | 270 GPa |
| Bulk Modulus | 439 GPa |
| Poisson Ratio | 0.234 |
| Speed of Sound (longitudinal) | 6220 m/s |
| MECHANICAL PROPERTIES |
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| Ultimate Tensile Strength | 344.8 MPa |
| Hardness | 1700–2400 Hv (9 Mohr) |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 2×10−7 Ohm.m |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 84.0 W/m.K |
| Thermal Expansion Coefficient | 5.8 μstrain/°C |
| Melting Range | 2,870 °C |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| General Corrosion Status | Exposure to formic, hydrochloric, hydrofluoric, nitric, phosphoric, sulfuric, and other strong acids can result in a relatively rapid deterioration of the binder phase |