Molybdenum carbide has a high melting point and hardness, good thermal stability and mechanical stability, and excellent corrosion resistance and other characteristics. Molybdenum is a silvery white refractory metal, a melting point of 2615 ℃, density of 10.2 g / cm 3, the expansion coefficient is small, a special tube is almost the same coefficient of expansion of the glass. Molybdenum stable at room temperature is higher than 600 ℃, rapidly oxidized.
2013年7月28日星期日
Chromium zirconium copper has good electrical conductivity
thermal conductivity, high hardness, Molybdenum crucible antiknock, crack resistance and high softening temperature, less wear and tear during welding electrodes, welding fast, low total cost of welding, welding electrode suitable for welding For pipe fittings. Density 8.7g/cm3, conductivity 115w (mk) 20 ℃, hardness 140HV, softening temperature 550 ℃.
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