The performance requirements of military standard high specific gravity tungsten alloy are as follows:
1. Density: The military standard requires a density of not less than 18.0g/cm³.
2. Hardness: The military standard requires a hardness not lower than HRA90.
3. Tensile strength: The military standard requires that the tensile strength is not less than 900MPa.
4. Elongation rate: The military standard requires that the elongation rate is not less than 5%!. (MISSING)
5. Thermal expansion coefficient: The military standard requires that the thermal expansion coefficient is not greater than 5.4×10-6/℃.
6. Thermal conductivity: The military standard requires that the thermal conductivity is not less than 120W/(m·K).
7. Conductivity coefficient: The military standard requires that the conductivity coefficient is not less than 25%! I(MISSING)ACS.
8. Corrosion resistance: The military standard requires good acid and alkali resistance and salt water corrosion resistance.
The above are the performance requirements of general military standard high specific gravity tungsten alloys, and different military product specifications and uses have different technical requirements.
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