:: Platinum Alloys ::
TechForm casts in the following platinum alloys:
Platinum 95% Ruthenium 5%
This is the “Tiffany” alloy, and as such has a long track record as a reliable casting material with good hardness and working characteristics.
- Hardness: 135 Vickers
- Tensile Strength: 66,000 psi
- Ductility: Good
- Filigree Casting: Fair
- Magnetic: No
- Hallmarking: Platinum, Pt, Plat, or Pt 950
Platinum 90% Iridium 10%
This is a great all-around alloy that will not oxidize and has been widely used for years in both casting and fabrication.
- Hardness: 110 Vickers
- Tensile Strength: 55,000 psi
- Ductility: Excellent
- Filigree Casting: Good
- Magnetic: No
- Hallmarking: Pt 900 or IridPlat
Platinum S+2
This is Steven Kretchmer’s patented heat treatable alloy and is best used for tension set pieces or other applications where very high strength is needed.
- Hardness: 170 Vickers
- Tensile Strength:
- Ductility:
- Filigree Casting:
- Magnetic:
- Hallmarking: Platinum, Pt, Plat, or Pt 950
