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Alloys

BioGold Plus
BioGold Plus
Type Indication Colour
IV 5,7,9 rich yellow
Au Pt Pd Ag Rh Ir Cu Sn Zn In Ga Rest
86,5 10,5 - - x - - - 1,5 x - Ta,Mn
Melting interval Density E-Modulus
1040°C to 1130°C 18,6 g/cm² 91 GPa
Preheat temp. Casting temp. elec. Crucible
800°C 1280°C graphite/ceramic/glass carbon
Hardness HV5 Tensile limit MPa
As cast 180 After firing 220 As cast 480 After firing 665
Hard 250 Soft 145 Hard 550
Tensile strength MPa Elongation %
As cast 600 After firing 650 As cast 8 After firing 8
Hard 750 Hard 5
TEC Recommended solders
25 - 500 °C 14,3 µm/m.K Before firing Orion 1030°C PdF geel
25 - 600 °C 14,5 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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