1 © Bego 2 3 INVESTING · CASTING · SOLDERING 1 BegoWirobond select Porcelain-Bonding Alloy CoCr alloy in the conventional CTE range. Carbon-, nickel- and beryllium-free. Ideal for laser welding. Advantages: • Standard cooling also for wide span bridges possible; • High heat resistance effectively prevents distortions of the object and ensures a high fitting accuracy after thermal treatment; • Problem-free processing; • Biocompatible and corrosionresistant. Physical data: elongation limit 470 N/mm²; tensile strength 650 N/mm²; Vickers hardness 310 HV10; ultimate elongation 8 %; modulus of elasticity approx. 200,000 N/mm²; density 8.5 g/cm³; melting interval 1370-1420 °C; casting temperature 1480 °C; CTE 14.1 x 10-6K-1 (25-500 °C); 14.3 x 10-6K-1 (20-600 °C). Composition in %: Co 63.8; Cr 24.8; W 5.3; Mo 5.1; Si, Fe < 1.0. 1 pack. 010.158 g , 010.258 g , Trial pack 1 pack. 010.15P5 g free of charge 2BegoWirobond C Porcelain-Bonding Alloy CoCr alloy for veneering porcelains in the conventional CTE range. Nickel- and beryllium-free. Advantages: • Easy processing due to safe detection of casting time; • Carbon-free composition – particularly suitable for laser welding; • High bond of porcelain; • Low heat conduction – protection of the pulp and high wearing comfort for the patient; • Biocompatible and corrosionresistant. Physical data: elongation limit 440 N/mm²; tensile strength 780 N/mm²; Vickers hardness 315 HV10; ultimate elongation 16 %; modulus of elasticity approx. 180,000 N/mm²; density 8.5 g/cm³; melting interval 1360-1420 °C; casting temperature approx. 1500 °C; CTE 14.3 x 10-6K-1 (25-500 °C). Composition in %: Co 63.3; Cr 24.8; W 5.3; Mo 5.1; Si 1.0; Ce < 1.0. 1 pack. 010.320 g , 010.330 g , 3BegoWirobond 280 Porcelain-Bonding Alloy CoCr alloy with reduced hardness. For veneering porcelains in the conventional CTE range. Nickel- and beryllium-free. Advantages: • Easy processing and polishing due to reduced hardness; • No long-term cooling for most porcelains required, also not in case of large spans; • Safe bond of porcelain; • High stiffness for all spans resulting in a broader indication range; • Very good melting and casting characteristics; • Low heat conduction; • Biocompatible and corrosionresistant. Physical data: elongation limit 515 N/mm²; tensile strength 680 N/mm²; Vickers hardness 280 HV10; ultimate elongation 14 %; modulus of elasticity approx. 215,000 N/mm²; density 8.6 g/cm³; melting interval 1355-1430 °C; casting temperature approx. 1500 °C; CTE 14.3 x 10-6K-1 (25-500 °C). Composition in % Co 60.2; Cr 25.0; W 6.2; Mo 4.8; Ga 2.9; Si, Mn < 1.0. 1 pack. 010.088 g , 010.098 g ,
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