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Johnson Matthey SW 850 Platinum w/ 15% Iridium Jewelry Alloy
| Category | Metal , Nonferrous Metal , Precious Metal , Platinum Alloy |
| Manufacturer | Johnson Matthey |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Johnson Matthey SW 850 Platinum w/ 15% Iridium Jewelry Alloy.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Springs, watch backs. 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 | 160 | 160 | Annealed |
| Elongation at Break | 15 % | 15 % | Annealed |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Melting Point | 1800 - 1820 °C | 3270 - 3310 °F | |
| Solidus | 1800 °C | 3270 °F | |
| Liquidus | 1820 °C | 3310 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Iridium, Ir | 15 % | 15 % | |
| Platinum, Pt | 85 % | 85 % |
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