Description
The JM 95.2 Pt. /4.8% Ru platinum casting alloy is among the most popular platinum among jewelry manufacturers in the U.S.
This alloyed platinum has an annealed hardness of 120 HV (Vickers hardness) and a working hardness of approximately 220 HV, along with high tensile strength.
These properties — refined grain structure, excellent hardness, and strength — make the Pt/Ru alloy well suited for machine casting and polishing, making it an ideal choice for ring manufacturing. Available in small rod form, this .950 platinum alloy produces bright, high-quality finished jewelry pieces
Features & Specifications
- Manufacturer: JM
- Metal Color: White
- Metal Type: Platinum
- Metal Fineness: .950
- Form: Grains/pieces
- 95.2% platinum 4.8% Ruthenium
- Pre-alloyed temperatures (no platinum) 2985°F (1640°C)
- Casting as platinum temperatures 3110°F (1710°C)
