NPM-Bonding Alloys / CoCr based
From Non-precious Metal Powder (NPM)
CoCrWMo bonding alloy for conventional, high-fusing (low expansion) ceramics. Free of nickel, lead, beryllium and cadmium. Type 5 pursuant to DIN EN ISO 22674. High degree of purity. Biocompatible and extremly corrosion resistant.
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Advantages for Dental Technicians:
- Wide range of indications
- System-free working due to very good alloy properties
- Pleasant polishing properties and easy finishing due to low hardness of 280 HV10
- A CTE of 14.0 enables flexibility in ceramic selection and safe veneering
- No cooling phase required, depending on the ceramics
- Excellent metal-ceramic bonding, even without bonder
- An oxidation firing can be omitted
- Optimal conditions for laser welding
- Application flexibility and easy melting, no sparking
Technical Properties:
- Proof stress (Rp 0.2) ' 650MPa
- Ultimate tensile strength ' 910MPa
- Elongation ' 8%
- Elastic modulus ' 200GPa
- Vickers hardness ' 280 HV 10
- Density ' 8.8g/cm³
- Melting range ' 1305 - 1400°C
- Preheating temperature ' 850 - 950°C
- Casting temperature ' 1500 - 1550°C
- CTE (20-600°C) ' 14.0 x 10?6K?¹
- Laser weldable ' Yes
- Type (DIN EN ISO 22674) ' 5
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