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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
9232	90 % Platinum, 10 % Iridium	0.063 in. / 1.6 mm	0.049 in. / 1.245 mm	12 in. / 1 ft. / 0.305 m	$1,657.68
9832	90 % Platinum, 10 % Iridium	0.0905 in. / 2.30 mm	0.0825 in. / 2.10 mm	12 in. / 1 ft. / 0.305 m	$1,670.85
6996	90 % Platinum, 10 % Iridium	0.250 in. / 6.35 mm	0.198 in. / 5.029 mm	2 in. / 50.8 mm	$1,703.68
8520	90 % Platinum, 10 % Iridium	0.020 in. / 0.51 mm	0.016 in. / 0.406 mm	0.040 in. / 1.016 mm x 200 pieces	$1,707.41
9233	90 % Platinum, 10 % Iridium	0.063 in. / 1.6 mm	0.049 in. / 1.245 mm	14 in. / 35.56 cm	$1,842.50
9957	90 % Platinum, 10 % Iridium	0.058 in. / 1.47 mm	0.052 in. / 1.32 mm	0.323 in. / 8.2 mm x 50 pieces	$1,905.78
11235	90 % Platinum, 10 % Iridium	0.0725 in. / 1.842 mm	0.0645 in. / 1.638 mm	12 in. / 1 ft. / 0.305 m	$1,990.94
11234	90 % Platinum, 10 % Iridium	0.078 in. / 1.98 mm	0.063 in. / 1.6 mm	12 in. / 1 ft. / 0.305 m	$2,037.58
11236	90 % Platinum, 10 % Iridium	0.072 in. / 1.83 mm	0.063 in. / 1.6 mm	12 in. / 1 ft. / 0.305 m	$2,053.53
11237	90 % Platinum, 10 % Iridium	0.072 in. / 1.83 mm	0.060 in. / 1.52 mm	12 in. / 1 ft. / 0.305 m	$2,130.60
11238	90 % Platinum, 10 % Iridium	0.072 in. / 1.83 mm	0.054 in. / 1.37 mm	12 in. / 1 ft. / 0.305 m	$2,208.16
11115	90 % Platinum, 10 % Iridium	0.0494 in. / 1.255 mm	0.0394 in. / 1.0 mm	0.197 in. / 5 mm x 100 pieces	$2,254.80
7606	90 % Platinum, 10 % Iridium	0.020 in. / 0.51 mm	0.016 in. / 0.406 mm	0.040 in. / 1.016 mm x 300 pieces	$2,322.00
11232	90 % Platinum, 10 % Iridium	0.083 in. / 2.11 mm	0.049 in. / 1.245 mm	12 in. / 1 ft. / 0.305 m	$2,329.60
11117	80 % Platinum, 20 % Iridium	0.0494 in. / 1.255 mm	0.0394 in. / 1.0 mm	0.197 in. / 5 mm x 100 pieces	$2,336.00
11233	90 % Platinum, 10 % Iridium	0.083 in. / 2.11 mm	0.039 in. / 0.99 mm	12 in. / 1 ft. / 0.305 m	$2,546.13
10088	90 % Platinum, 10 % Iridium	0.125 in. / 3.175 mm	0.105 in. / 2.67 mm	12 in. / 1 ft. / 0.305 m	$2,547.15
11392	80 % Platinum, 20 % Iridium	0.050 in. / 1.27 mm	0.0394 in. / 1.0 mm	0.236 in. / 6 mm x 100 pieces	$2,851.20
8521	90 % Platinum, 10 % Iridium	0.020 in. / 0.51 mm	0.016 in. / 0.406 mm	0.040 in. / 1.016 mm x 400 pieces	$2,954.82
9449	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.041 in. / 1.04 mm	12 in. / 1 ft. / 0.305 m x 3 pieces	$2,981.00

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