JM 95.2 Pt. /4.8% Ru – Platinum Casting Grain (Per Ounce)

As low as $1,268.14

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1 - 9 $1,280.95 $1,306.57 $1,345.00
10 - 99 $1,280.31 $1,305.92 $1,344.33
100 + $1,268.14 $1,293.50 $1,331.55
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Description

The JM 95.2 Pt. /4.8% Ru platinum casting grain is among the most popular platinum alloys among jewelry manufacturers in the U.S. Both alloys contain Ruthenium which is a grain refiner. It gives the alloys a definite structure. This alloyed platinum has an annealed hardness of 120 HV (Vickers hardness) and a working hardness of about 220HV. The platinum alloy also has high tensile strength.

The three properties of Pt/Ru mentioned above make it suitable for machine casting and polishing. This makes it an excellent alloy in the manufacture of rings. You’ll get a bright-colored platinum jewel or item from the .950 platinum casting grains and 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)

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