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Johnson Matthey SW 900 Platinum w/ 10% Iridium Jewelry Alloy

Category Metal , Nonferrous Metal , Precious Metal , Platinum Alloy
Manufacturer Johnson Matthey
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Johnson Matthey SW 900 Platinum w/ 10% Iridium Jewelry Alloy.pdf
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Material Notes:
Safety catches, pins. Copper, cobalt, gold, iridium, palladium and ruthenium alloy easily with platinum. The differences between the alloys reflect the hardening of the alloying element itself.
Physical Properties Metric English Comments
Density 21.5 g/cc
0.777 lb/in³
Mechanical Properties Metric English Comments
Hardness, Vickers 110
110
Annealed
Elongation at Break 25 %
25 %
Annealed
Thermal Properties Metric English Comments
Melting Point 1780 - 1800 °C
3240 - 3270 °F
Solidus 1780 °C
3240 °F
Liquidus 1800 °C
3270 °F
Component Elements Properties Metric English Comments
Iridium, Ir 10 %
10 %
Platinum, Pt 90 %
90 %
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