625 - Nickel-Chromium Alloy for Dosage Plant Using Inconel 625 scrap

摘要

The present invention provides a high-strength cobalt-chrome-based alloy for dental use comprising 60-65 parts by weight of nickel (Ni), 20-24 parts by weight of chrome (Cr), 7-11 by weight of molybdenum (Mo), 2-4 parts by weight of niobium (Nb), 0.8-1.2 parts by weight of silicon (Si), 0.5-0.9 parts by weight of tantalum (Ta), 0.3-0.7 parts by weight of manganese (Mn), 0.3-0.7 parts by weight of iron (Fe), 0.2-0.6 parts by weight of aluminum (Al), and 0.5 parts by weight of titanium (Ti). The present invention is harmless to a human body and has sufficient tensile strength and hardness. Therefore, the present invention can improve machining efficiency. Also, since the present invention has sufficient yield strength and elongation percentage, resistance against fatigue cracks which can be created when mounted on teeth is high to reduce damage to teeth and improve the life of teeth. Specifically, the present invention has excellent discoloration resistance and improves a coupling force to porcelain to improve chewing strength and appearance of teeth.