硬质合金密封环2硬质合金是机械密封摩擦料中用量较多的硬面材料,使用范围广泛,耐磨性好,抗弯强度高,导热系数高,膨胀系数小,是所有硬面材料中耐热冲击系数*高的材料.Tungsten carbide is widely used as seal faces with resistant-wearing high fractural strength, high thermal conductivity, small heat expansion co-efficient. It is the best material to resist heat and fracture in all hard face materials.硬质合金(TC)物理性能参数TC physical property技术参数单位YWN6YWN8YG6YG8DYNT60Technical ParameterUnit WC%94929492 化学成份Ni%68 Composition Co% 68 密度g/cm314.5~14.914.4~14.814.6~1514.5~14.96.5~6.8Density硬度HRA88.58889.58990Hardness抗弯强度Mpa14901470142114701480Fractural Strength线膨胀系数10-6/K5.25.355.17.5Heat Expansion Co-efficient