H&W Ceramic Metal for Casting Ceramic Dental Powder

H&W (Made In Germany) Ceramic Metal for casting ceramic dental powder – Quality,strength & properties same as Ivoclar for all metal.IndicationsNon-preciousBeryllium freeNiCr based alloy for ceramic application as per guidelines of EN ISO 22674CompositionMinerals Quantity (%) Ni 26% Cr 11% Mo 1.7% Si 1.1% Others BalTechnical PropertiesMelting Range 1260 DegreeC-1370 DegreeCTensile Elongation 9-11�nsity 8.4g/cm3Tensile Strength 395Mpa CTE 14.0Hardness 233 HV Color Silver Shape CylindricalGeneral PropertiesBiocompatible, High durabilityHighly resistant to corrosionIt does not discolor porcelainHighly adhesive to porcelain (ceramics)Melts at low temperatureEasy to form a quality castingObservation Applying the porcelainThe entire surface to be built up with the porcelain powder must be sandblasted thoroughly. The oxide firing should be carried out in vacuum. After firing, sandblast again with 110 μm grit at a pressure of 2 bars. BERYLLIUM DISADVANTAGESBeryllium vapors are carcinogenic and hence lab technicians are prone to severe diseases. (Reference-World at work Dental laboratory technicians, N Torbica and S Krstev Occup Environ Med. 2006 Feb; 63(2) 145-148.)Prolong release of beryllium from ceramic alloy causes fibrosis of lungs in patients.(Refernce-OSHA Beryllium Health Effects March 29, 2016)