Wirobond® 280

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•Wirobond® 280 is setting standards in the non-precious bonding alloy segment. The low Vickers hardness of 280 HV10 and a very good spanability facilitate processing

• High corrosion resistant thanks to the interaction of the indispensable elements chrome, tungsten and molybdenum

• Very good melting and casting properties

• No prolonged cooling necessary*, even with large spans, due to optimised coefficient of thermal expansion

• Secure bonding with ceramics

• High strength of the alloy for safe processing even of the large span size of bridges

• Reliable processing in accordance with the proven BEGO system

• Biocompatible and corrosion-resistant

Item name

Wirobond^® 280

Product description

Cobalt-Chromium alloy for crowns & bridges

Content/amount

1 kg pack

Composition

Co 60,2 · Cr 25,0 · W 6,2 · Mo 4,8 · Ga 2,9 · Mn · Si

Base metall

Cobalt

Color code

8

Preheat temp. from

900 °C

Preheat temp. to

1000 °C

Casting temperature

1500 °C

Solidustemp

1355 °C

Liquidustemp.

1430 °C

Vickershardness

280 HV10

Yield strength

475 MPa

Elongation at break

9 %

Density g/cm³

8,6 g/cm³

Elastic modul

221 GPa

Tensile strength

680 MPa

Iso type ISO22674

4

CTE

14,3 10ˉ⁶ Kˉ¹

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