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Alloys

BioGold AN
BioGold AN
Type Indication Colour
IV 5,7,9 rich yellow
Au Pt Pd Ag Rh Ir Cu Sn Zn In Ga Rest
86,0 11,0 - - x x - - 1,5 x - Nb,Fe
Melting interval Density E-Modulus
1040°C to 1140°C 18,7 g/cm² 93 GPa
Preheat temp. Casting temp. elec. Crucible
800°C 1235°C graphite/ceramic/glass carbon
Hardness HV5 Tensile limit MPa
As cast 175 After firing 200 As cast 455 After firing 500
Hard 210 Soft 140 Hard 580
Tensile strength MPa Elongation %
As cast 575 After firing 600 As cast 8 After firing 8
Hard 650 Hard 4
TEC Recommended solders
25 - 500 °C 14,3 µm/m.K Before firing Orion 1030°C PdF geel
25 - 600 °C 14,6 µm/m.K After firing II PdF 800°C / III PdF 750°C
Oxidation (without vacuum) Hardening (cooldown by air)
950°C 3 minutes 500°C 15 minutes
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