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Alloys

Apollo 4 CF
Apollo 4 CF
Type Indication Colour
IV 4,5,7 yellow
Au Pt Pd Ag Rh Ir Cu Sn Zn In Ga Rest
68,0 1,0 6,0 21,4 - x - x 3,4 - - -
Melting interval Density E-Modulus
1000°C to 1070°C 15,7 g/cm² 102 GPa
Preheat temp. Casting temp. elec. Crucible
750°C 1150°C graphite/ceramic/glass carbon
Hardness HV5 Tensile limit MPa
As cast 250 Hard 250 As cast 630 Hard 630
Soft 150 Soft 350
Tensile strength MPa Elongation %
As cast 765 Hard 700 As cast 6 Hard 5
Soft 570 Soft 15
Recommended solders
Elephant solder I 850°C
Elephant solder II PdF 800°C Elephant solder III PdF 750°C
Quenching (cooldown in water) Hardening (cooldown by air)
700°C 10 minutes 400°C 15 minutes
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