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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
3514	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	3.281 ft. / 1.00 m	$790.35
3539	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	4 ft. / 1.22 m	$941.28
3989	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	5 ft. / 1.524 m	$1,151.29
3999	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	7 ft. / 2.134 m	$1,604.33
4002	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	10 ft. / 3.048 m	$2,233.12
4007	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	25 ft. / 7.620 m	$5,301.95
4013	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	40 ft. / 12.192 m	$8,272.48
4019	80 % Platinum, 20 % Iridium	0.020 in. / 0.5 mm / 24 gauge	50 ft. / 15.2 m	$9,978.35
P/N	Purity	Diameter	Length	Price
6257	90 % Platinum, 10 % Iridium	0.021 in. / 0.533 mm	3 ft. / 0.914 m	$777.52
P/N	Purity	Diameter	Length	Price
6063	90 % Platinum, 10 % Iridium	0.023 in. / 0.584 mm / 23 gauge	3 ft. / 0.914 m 1 foot straight length(s)	$827.78
6061	90 % Platinum, 10 % Iridium	0.023 in. / 0.584 mm / 23 gauge	3 ft. / 0.914 m	$813.78
P/N	Purity	Diameter	Length	Price
13089	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	1.25 in. / 31.75 mm x 50 pieces Wire, straight length(s)	$2,735.00
13090	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	1.25 in. / 31.75 mm x 100 pieces Wire, straight length(s)	$4,840.00
13293	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	3.50 in. / 88.9 mm	$113.24
5148	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	6 in. / 0.5 ft. / 0.153 m	$165.28
8613	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	8 in. / 20.32 cm	$222.67
9525	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	9 in. / 0.229 m	$239.02
1878	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	12 in. / 1 ft. / 0.305 m	$312.75
5136	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	24 in. / 2 ft. / 0.610 m	$634.52
5137	90 % Platinum, 10 % Iridium	0.025 in. / 0.635 mm / 22 gauge	3 ft. / 0.914 m	$849.31

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