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Platinum Iridium

Platinum-iridium is an alloy of the platinum group precious metals platinum and iridium.

Surepure Chemetals typically supplies alloy proportions of 90% platinum / 10% iridium and 80% platinum / 20% iridium. Surepure Chemetals sells platinum-iridium conforming to the ASTM B684 specification (including ASTM B 684-97).

These have the chemical stability of platinum, but increased hardness.

Due to its high density, hardness, and resistance to corrosion, platinum-iridium was used to make the international prototype kilogram and the international prototype meter.

One use for Pt/Ir alloy is fabrication of metal microelectrodes for electrical stimulation of nervous tissue and electrophysiological recordings. Pure iridium is very difficult to pull into small diameter wires, while pure platinum has a low Young's modulus which makes pure platinum wires bend easily during the insertion in nervous tissue; hence Pt/Ir alloy has an optimal combination of mechanical and electrochemical properties for this application.

Surepure Chemetals sells platinum iridium wire and platinum iridium sheet.

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The products below are representative of what we sell. If you don't find what you're looking for, please request a quote or contact us.

Buy Platinum Iridium Wire and Rod from Surepure Chemetals

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P/N	Purity	Diameter	Length	Price
7609	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	2 in. / 50.8 mm	$188.65
4736	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	3 in. / 76.2 mm	$258.73
8450	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	3.94 in. / 10 cm	$311.12
4737	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	6 in. / 0.5 ft. / 0.153 m	$451.35
11484	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	9 in. / 0.229 m	$639.71
1884	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	12 in. / 1 ft. / 0.305 m	$826.28
5425	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	24 in. / 2 ft. / 0.610 m	$1,582.76
5865	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	3 ft. / 0.914 m	$2,004.17
8451	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	3.281 ft. / 1.00 m	$2,201.95
5866	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	4 ft. / 1.22 m	$2,888.50
1885	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	5 ft. / 1.524 m	$3,510.29
5867	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	7 ft. / 2.134 m	$4,821.24
11885	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	8 ft. / 2.438 m	$5,460.20
11775	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	9 ft. / 2.743 m	$6,082.44
4502	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	10 ft. / 3.048 m	$6,693.75
5868	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	15 ft. / 4.572 m	$9,890.92
5869	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	20 ft. / 6.096 m	$12,906.81
1886	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm / 18 gauge	25 ft. / 7.620 m	$15,855.07
P/N	Purity	Diameter	Length	Price
4369	90 % Platinum, 10 % Iridium	0.045 in. / 1.143 mm / 17 gauge	1.00 in. / 25.4 mm	$529.12
10685	90 % Platinum, 10 % Iridium	0.045 in. / 1.143 mm / 17 gauge	1.77 in. / 45 mm x 15 pieces Rod, straight length(s)	$2,132.33

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