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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
8489	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	20 ft. / 6.096 m	$896.27
2769	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	25 ft. / 7.620 m	$1,079.96
3674	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	50 ft. / 15.2 m	$1,999.24
2770	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	100 ft. / 30.48 m	$3,449.60
P/N	Purity	Diameter	Length	Price
13428	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	6 in. / 0.5 ft. / 0.153 m	$96.00
3330	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	12 in. / 1 ft. / 0.305 m	$114.51
13429	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	18 in. / 1.50 ft. / 45.7 cm Wire, by spool	$128.11
3331	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	24 in. / 2 ft. / 0.610 m	$145.27
13430	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	3 ft. / 0.914 m	$177.97
13431	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	4 ft. / 1.22 m	$210.29
3332	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	5 ft. / 1.524 m	$243.41
13432	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	6 ft. / 1.829 m	$269.16
13433	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	7 ft. / 2.134 m	$293.48
13434	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	8 ft. / 2.438 m	$317.99
13435	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	9 ft. / 2.743 m	$343.55
13436	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	10 ft. / 3.048 m	$365.65
3333	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	12 ft. / 3.657 m	$415.53
13437	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	15 ft. / 4.572 m	$488.48
13427	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	20 ft. / 6.096 m	$611.30
3334	90 % Platinum, 10 % Iridium	0.008 in. / 0.203 mm / 32 gauge	25 ft. / 7.620 m	$737.90

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