Wirobond® C

Cobalt-Chrome metal-to-Ceramic alloy.

Advantages

Nickel- and beryllium-free

Simple processing thanks to reliable casting time recognition

Carbon-free composition – particularly well suited for laser welding

The element cerium ensures high bond strength with the Ceramic, minimising the risk of subsequent flaking or chipping

Low thermal conductivity – protects the pulp and ensures high wearing comfort for the patient

Biocompatible and corrosion-resistant thanks to a firmly-adhering passive layer

Wirobond® C Specifications

COMPOSITION IN % BY MASS

Co 63.3 · Cr 24.8 · W 5.3 · Mo 5.1 · Si 1.0 · Ce

ALLOY CHARACTERISTICS STANDARD VALUES

Type (ISO 22674) 4

Density 8.5 g/cm3

Preheating temperature 900–1000 °C

Solidus, liquidus temperature 1360, 1420 °C

Casting temperature approx. 1500 °C

Young’s modulus 180 GPa

Proof strength (Rp0.2) 440 MPa

Elongation after fracture (A5) 16 %

Vickers hardness 315 HV10

Coefficient of thermal expansion (CTE) 25–500 °C, 10-6 K-1 14.3

AVAILABILITY CONTENTS REF

Wirobond® C 250 g 50116

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® solder 4g 52622