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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 Tubing from Surepure Chemetals

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P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
7697	90 % Platinum, 10 % Iridium	0.063 in. / 1.6 mm	0.057 in. / 1.45 mm	12 in. / 1 ft. / 0.305 m x 10 pieces	$9,020.20
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
8280	90 % Platinum, 10 % Iridium	0.114 in. / 2.9 mm	0.104 in. / 2.64 mm	12 in. / 1 ft. / 0.305 m x 10 pieces	$14,649.92
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
8334	90 % Platinum, 10 % Iridium	0.046 in. / 1.17 mm	0.036 in. / 0.91 mm	12 in. / 1 ft. / 0.305 m	$1,209.26
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
9448	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.041 in. / 1.04 mm	12 in. / 1 ft. / 0.305 m	$1,413.80
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
8333	90 % Platinum, 10 % Iridium	0.059 in. / 1.5 mm	0.049 in. / 1.245 mm	12 in. / 1 ft. / 0.305 m	$1,354.78
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
9232	90 % Platinum, 10 % Iridium	0.063 in. / 1.6 mm	0.049 in. / 1.245 mm	12 in. / 1 ft. / 0.305 m	$1,974.84
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
9829	90 % Platinum, 10 % Iridium	0.068 in. / 1.73 mm	0.060 in. / 1.52 mm	12 in. / 1 ft. / 0.305 m	$1,486.30
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11238	90 % Platinum, 10 % Iridium	0.072 in. / 1.83 mm	0.054 in. / 1.37 mm	12 in. / 1 ft. / 0.305 m	$2,654.09
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11237	90 % Platinum, 10 % Iridium	0.072 in. / 1.83 mm	0.060 in. / 1.52 mm	12 in. / 1 ft. / 0.305 m	$2,441.94
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11236	90 % Platinum, 10 % Iridium	0.072 in. / 1.83 mm	0.063 in. / 1.6 mm	12 in. / 1 ft. / 0.305 m	$2,292.50
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11235	90 % Platinum, 10 % Iridium	0.0725 in. / 1.842 mm	0.0645 in. / 1.638 mm	12 in. / 1 ft. / 0.305 m	$2,206.54
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
9830	90 % Platinum, 10 % Iridium	0.074 in. / 1.88 mm	0.066 in. / 1.68 mm	12 in. / 1 ft. / 0.305 m	$1,523.16
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11234	90 % Platinum, 10 % Iridium	0.078 in. / 1.98 mm	0.063 in. / 1.6 mm	12 in. / 1 ft. / 0.305 m	$2,453.60
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
9831	90 % Platinum, 10 % Iridium	0.0805 in. / 2.04 mm	0.0725 in. / 1.84 mm	12 in. / 1 ft. / 0.305 m	$1,569.48
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11233	90 % Platinum, 10 % Iridium	0.083 in. / 2.11 mm	0.039 in. / 0.99 mm	12 in. / 1 ft. / 0.305 m	$3,599.66
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11232	90 % Platinum, 10 % Iridium	0.083 in. / 2.11 mm	0.049 in. / 1.245 mm	12 in. / 1 ft. / 0.305 m	$3,220.80
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
9832	90 % Platinum, 10 % Iridium	0.0905 in. / 2.30 mm	0.0825 in. / 2.10 mm	12 in. / 1 ft. / 0.305 m	$1,942.50
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
10088	90 % Platinum, 10 % Iridium	0.125 in. / 3.175 mm	0.105 in. / 2.67 mm	12 in. / 1 ft. / 0.305 m	$3,483.92
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
9233	90 % Platinum, 10 % Iridium	0.063 in. / 1.6 mm	0.049 in. / 1.245 mm	14 in. / 35.56 cm	$2,259.50
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11114	90 % Platinum, 10 % Iridium	0.0494 in. / 1.255 mm	0.0394 in. / 1.0 mm	1.641 ft. / 0.500 m / 50 cm	$1,737.50

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