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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
12556	90 % Platinum, 10 % Iridium	0.0614 in. / 1.56 mm	0.0394 in. / 1.0 mm	0.157 in. / 4 mm x 10 pieces	$1,570.10
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
12555	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.0394 in. / 1.0 mm	0.157 in. / 4 mm x 20 pieces	$1,594.00
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
12557	90 % Platinum, 10 % Iridium	0.0614 in. / 1.56 mm	0.0394 in. / 1.0 mm	0.157 in. / 4 mm x 20 pieces	$1,890.60
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
12509	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.0394 in. / 1.0 mm	0.157 in. / 4 mm x 50 pieces	$2,076.67
12510	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.0394 in. / 1.0 mm	0.157 in. / 4 mm x 100 pieces	$4,003.73
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
10488	90 % Platinum, 10 % Iridium	0.040 in. / 1.016 mm	0.020 in. / 0.508 mm	0.175 in. / 4.45 mm x 600 pieces	$5,470.50
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
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	$2,347.80
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11514	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.0394 in. / 1.0 mm	0.197 in. / 5 mm x 150 pieces	Request quote
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
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	$1,964.25
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
11896	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.041 in. / 1.04 mm	0.394 in. / 10 mm / 1 cm x 100 pieces	Request quote
11827	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.041 in. / 1.04 mm	0.394 in. / 10 mm / 1 cm x 200 pieces	Request quote
12606	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.041 in. / 1.04 mm	0.394 in. / 10 mm / 1 cm x 300 pieces	Request quote
11828	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.041 in. / 1.04 mm	0.394 in. / 10 mm / 1 cm x 500 pieces	Request quote
11829	90 % Platinum, 10 % Iridium	0.050 in. / 1.27 mm	0.041 in. / 1.04 mm	0.394 in. / 10 mm / 1 cm x 1,000 pieces	Request quote
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
12644	90 % Platinum, 10 % Iridium	0.115 in. / 2.92 mm	0.0952 in. / 2.418 mm	0.75 in. / 19.05 mm x 16 pieces	$3,113.72
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
6995	90 % Platinum, 10 % Iridium	0.250 in. / 6.35 mm	0.198 in. / 5.029 mm	1.50 in. / 38.1 mm	$1,670.40
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
6857	90 % Platinum, 10 % Iridium	0.250 in. / 6.35 mm	0.218 in. / 5.54 mm	1.50 in. / 38.1 mm	$1,336.00
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
10686	90 % Platinum, 10 % Iridium	0.125 in. / 3.175 mm	0.105 in. / 2.67 mm	1.56 in. / 39.6 mm x 15 pieces	$4,858.71
10734	90 % Platinum, 10 % Iridium	0.125 in. / 3.175 mm	0.105 in. / 2.67 mm	1.56 in. / 39.6 mm x 20 pieces	$6,478.01
P/N	Purity	Outside Diameter	Inside Diameter	Length	Price
6996	90 % Platinum, 10 % Iridium	0.250 in. / 6.35 mm	0.198 in. / 5.029 mm	2 in. / 50.8 mm	$1,977.20

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