Wieland Auropal 1 Casting Alloy

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Wieland Auropal 1 Casting Alloy
Categories:	Metal; Nonferrous Metal; Precious Metal; Gold Alloy; Silver Alloy
Material Notes:	Gold-silver casting alloy Applications: inlays/onlays, crowns, short span bridges, long span bridges, telescopic and milling works, removable partials, acrylic veneering Dental
Key Words:	EN ISO 8891
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Physical Properties	Metric	English	Comments

Density	14.3 g/cc	0.517 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	260	260	HV5/30; as cast
	260	260	HV5/30; hardened
Tensile Strength, Yield	680 MPa @Strain 0.2 %	98600 psi @Strain 0.2 %	as cast
	680 MPa @Strain 0.2 %	98600 psi @Strain 0.2 %	hardened
Elongation at Break	10 %	10 %	as cast
	10 %	10 %	hardened
Modulus of Elasticity	101 GPa	14600 ksi

Thermal Properties	Metric	English	Comments
Melting Point	871 - 910 °C	1600 - 1670 °F
Solidus	871 °C	1600 °F
Liquidus	910 °C	1670 °F

Processing Properties	Metric	English	Comments
Processing Temperature	699 °C	1290 °F	Preheating Temp.
Casting Temperature	1060 °C	1940 °F

Component Elements Properties	Metric	English	Comments
Copper, Cu	12 %	12 %
Gold, Au	63.4 %	63.4 %
Iridium, Ir	<= 0.10 %	<= 0.10 %
Palladium, Pd	3.0 %	3.0 %
Platinum, Pt	0.50 %	0.50 %
Silver, Ag	19.5 %	19.5 %
Zinc, Zn	1.5 %	1.5 %

Descriptive Properties
Color	yellow

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NWIELAN25 / 19827

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