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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
9704	80 % Platinum, 20 % Iridium	0.004 in. / 0.102 mm / 38 gauge	3 in. / 76.2 mm x 500 pieces	$6,077.10
10017	80 % Platinum, 20 % Iridium	0.004 in. / 0.102 mm / 38 gauge	100 ft. / 30.48 m	$2,260.00
P/N	Purity	Diameter	Length	Price
13144	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	12 in. / 1 ft. / 0.305 m Temper: Annealed (soft)	$94.00
13147	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	24 in. / 2 ft. / 0.610 m Temper: Annealed (soft)	$120.06
13148	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	3 ft. / 0.914 m Temper: Annealed (soft)	$150.18
13149	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	4 ft. / 1.22 m Temper: Annealed (soft)	$178.86
13145	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	5 ft. / 1.524 m Temper: Annealed (soft)	$208.99
13146	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	10 ft. / 3.048 m Temper: Annealed (soft)	$390.97
11767	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	15 ft. / 4.572 m Temper: Annealed (soft)	$573.40
11768	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	20 ft. / 6.096 m Temper: Annealed (soft)	$745.95
10598	90 % Platinum, 10 % Iridium	0.006 in. / 0.152 mm / 34 gauge	50 ft. / 15.2 m Temper: Annealed (soft)	$1,693.75
P/N	Purity	Diameter	Length	Price
2767	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	12 in. / 1 ft. / 0.305 m	$94.00
10599	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	18 in. / 1.50 ft. / 45.7 cm	$143.92
8485	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	24 in. / 2 ft. / 0.610 m	$177.05
8483	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	3 ft. / 0.914 m	$255.90
8486	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	4 ft. / 1.22 m	$291.10
2768	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	5 ft. / 1.524 m	$339.92
8487	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	7 ft. / 2.134 m	$433.26
3673	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	10 ft. / 3.048 m	$496.95
8488	80 % Platinum, 20 % Iridium	0.007 in. / 0.178 mm / 33 gauge	15 ft. / 4.572 m	$702.48

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