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Description
Wirobond® 280
The non-precious premium alloy for more than 10 years.
Advantages
Wirobond® 280 is setting standards in the non-precious metal-to-Ceramic alloy segment because of a Vickers hardness of 280 HV10, it can be finished to a particularly high standard
Extremely corrosion resistant thanks to the optimal interaction of the indispensable elements Chrome and molybdenum
Very good melting and casting properties
No prolonged cooling necessary*, even with large spans
Secure bonding with ceramics
High strength irrespective of the span size, and therefore a wide range of indications
Reliable processing in accordance with the proven BEGO system
Biocompatible and corrosion-resistant
* Exceptions: Creation (Willi Geller), Reflex® (Wieland Dental + Technik GmbH & Co. KG)
Wirobond® 280 Specifications
COMPOSITION IN % BY MASS
Co 60.2 · Cr 25.0 · W 6.2 · Mo 4.8 · Ga 2.9 · Mn · Si
ALLOY CHARACTERISTICS STANDARD VALUES
Type (ISO 22674) 4
Density 8.6 g/cm³
Preheating temperature 900–1000 °C
Solidus, liquidus temperature 1355, 1430 °C
Casting temperature approx. 1500 °C
Young’s modulus 220 GPa
Proof strength (Rp0.2) 480 MPa
Elongation after fracture (A5) 9%
Vickers hardness 280 HV10
Coefficient of thermal expansion (CTE) 25 – 500 °C, 10-6 K-1 14.3
AVAILABILITY CONTENTS REF
Wirobond® 280 1000 g 50134
Wirobond® 280 250 g 50135
ACCESSORIES CONTENTS REF
Wiroweld CoCr laser wire, carbon-free, Ø 0.35 mm 2 m – 1.5 g 50003
Wiroweld CoCr laser wire, carbon-free, Ø 0.5 mm 1.5 m – 2 g 50005
Wirobond® -soldering rods 4g 52622
