Johnson Matthey GW Platinum w/ 5% Copper 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 GW Platinum w/ 5% Copper Jewelry Alloy.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

General purpose, medium hard. Can be cast. 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	20.0 g/cc	0.723 lb/inÂ³

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	108	108	As Cast
	125	125	Annealed
Elongation at Break	29 %	29 %	Annealed

Thermal Properties	Metric	English
Melting Point	1725 - 1745 Â°C	3137 - 3173 Â°F
Solidus	1725 Â°C	3137 Â°F
Liquidus	1745 Â°C	3173 Â°F

Component Elements Properties	Metric	English	Comments
Copper, Cu	5.0 %	5.0 %
Platinum, Pt	95 %	95 %

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