Shandong JinNai International Trade Co., Ltd.
Shandong JinNai International Trade Co., Ltd.
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HRC70 High Hardness Polished 1 Inch Tungsten Carbide Balls For Hole Extrusion
Tungsten Carbide with Ni binder (6%) balls, they show slightly worse mechanical characteristics
but better corrosion reistance properties with respect to the Cobalt binder tungsten carbides.
Virgin powder is always used.
| Property | Symbol | U.o.M. | Type | Notes | Values |
|---|---|---|---|---|---|
| Density | δ | [g/cm3] | Physical | Room temp. | 14.95 |
| Young's modulus | E | [GPa] | Mechanical | - | 620 |
| Specific heat | c | [J/kg-K] | Thermal | Room temp. | 212 |
| Coefficient of linear thermal expansion | α | [10^-6/ºC] | Thermal | (ΔT=0-100°C) | 5.9 |
| Thermal conductivity | λ | [W/(m·K)] | Thermal | Room temp. | 92.0 |
| Electric resistivity | ρ | [Ω*m*10^-9] | Electric | - | 185 |
| Relative magnetic permeability | µ | - | Magnetic | Slighlty ferrom. | max 3.00 |
| Property | Type | U.o.M. | Values | U.o.M. | Values |
|---|---|---|---|---|---|
| Grain size | Physical | [µm] | ~ 1.4 | - | - |
| Hardness | Mechanical | [HRA] | 89.0 - 91.0 | [HV] | 1400 - 1700 |
| Ultimate compressive strength | Mechanical | [MPa] | 4900 - 5200 | [psix10^3] | 711 - 754 |
| Service temperature | Thermal | [ºC] | -196 / 540 | [ºF] | -320.8 / 1004 |
| Corrosion Resistance |
|---|
| Good corrosion resistance in basic and neutral solutions. For acid solutions they resist up to pH 4. |
