Argedent AH

High Gold Alloys for Ceramics

Color YELLOW
Type 4
ADA Class HIGH NOBLE (HN)
Application
Processing
Investment Phosphate Bonded
Crucible Graphite / Ceramic
Degassing Temp C 650-950
Oxidation Procedure No Hold, Do Not Remove Oxide, No Vacuum
Solder & Laser Wires
PreSolder YSF
PostSolder 720
Laser Wire LWT84
Physical Properties
VHN After Firing 180
VHN Soft
VHN Hard 230
Proof Stress Soft MPa 455
Proof Stress Hard MPa 495
Tensile Strength Soft MPa 520
Tensile Strength Hard MPa 567
Elongation Soft 13
Elongation Hard 10
Elastic Modulus GPa 92
Composition
Gold (Au) 86.09
Iron (Fe) 0.9
Indium (In) 1.4
Palladium (Pd) 2.6
Tantalum (Ta) 0.4
Lithium (Li) 0.01
Iridium (Ir) 0.1
Platinum (Pt) 8.5
Thermal Properties
Melting Range C 1050-1145
Casting Temp C 1200
Density g/cc 18.5
Expansion at 500C 14.4
Expansion at 600C 14.7
Burnout Temp C 790