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SYSTEM Duro is a non-precious dental cast alloy for crowns and bridges on cobalt-base, type 5.

SYSTEM Duro is easy to use and quick to polish with excellent laser welding properties. The alloy can be melted by open flame or induction heating.

SYSTEM Duro can be used with any commercial, phosphate- bonded investment material (our recommendation: ADENTA®-VEST CB).

SYSTEM Duro can be veneered with any high-fusing ceramics.

Typical material properties

Yield strength 0,2 % (MPa)575
Elongation (%)4,25
E-Module (GPa)170
Tensile strength (MPa)750
Density (g/cm³)8,4
Corrosion resistance (µg/cm2)< 200
Melting range (Solidus/Liquidus)1340 °C / 1400 °C
 CTE (25 – 500°C) (10⁻⁶ K⁻¹)~14,1
Casting temperature1485 °C
Hardness  HV 10/30350
Max. firing temperatureapprox. 980 °C
Delivery form (mm)Ø 9,5 x 11
Packaging unit2,2 lb (1000 g)
Type acc. DIN EN ISO 22674:2016≥ Type 5 as delivered
Lot numbers may show minimum deviation from typical values.
More information are available on our instruction for use.

Typical composition %

CoCrWNbVMoSiFeno other
59,924,88,52,22,20,950,950,1> 0,1