Buy Platinum Rhodium Wire and Rod, Diameter: 0.020 in. / 0.5 mm / 24 gauge, Purity: 70 % Platinum, 30 % Rhodium

Platinum Rhodium

Platinum-rhodium alloys are alloys of the platinum group precious metals platinum and rhodium.

Surepure Chemetals typically supplies alloy proportions of
94% platinum / 6% rhodium,
90% platinum / 10% rhodium,
80% platinum / 20% rhodium, and
70% platinum / 30% rhodium.

Surepure Chemetals sells both platinum-rhodium and pure platinum conforming to the ASTM E1159 specification for Thermocouple Materials, Platinum-Rhodium Alloys, and Platinum.

A thermocouple is a temperature-measuring device consisting of two different types of conductor wires. Platinum and Platinum-Rhodium thermocouples are a very stable type of thermocouple, are resistant to oxidation in air, and can be used at high temperatures, up to 1800°C (3272°F), depending on the type of thermocouple.

Type B thermocouples are made up of Platinum 70% / Rhodium 30% wire paired with Platinum 94% / Rhodium 6% wire, and can be used up to 1800°C (3272°F).

Type R thermocouples are made up of Platinum 87% / Rhodium 13% wire paired with Pure Platinum wire, and can be used up to 1600°C (2912°F).

Type S thermocouples are made up of Platinum 90% / Rhodium 10% wire paired with Pure Platinum wire, and can be used up to 1600°C (2912°F). Before 1990, Type S thermocouples were used as the standard international thermometers from 630°C to 1064°C.

Surepure Chemetals sells platinum-rhodium wire and pure platinum wire for use in thermocouples.

Whereas platinum has a Young's modulus of 165 GPa, the Young's modulus of rhodium is 372 GPa. As would be expected, platinum-rhodium alloys have substantially higher mechanical strength at all temperatures than chemically pure platinum. Even at temperatures immediately below the melting temperature, the platinum-rhodium alloys demonstrate oxidation resistance that is similar to that of platinum.

Alloys containing about 10 percent of rhodium are used as positive elements in thermocouples, as catalytic gauzes for the oxidation of ammonia to nitric acid, and to some extent as the heating element in resistance furnaces. Alloys containing 3 to 4 percent of rhodium are used for crucibles and similar laboratory ware.

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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 Rhodium Wire and Rod from Surepure Chemetals

Diameter: 0.020 in. / 0.5 mm / 24 gauge

Purity: 70 % Platinum, 30 % Rhodium

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Showing 1 - 20 of 22 | Next

P/N	Purity	Diameter	Length	Price
9910	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	3 in. / 76.2 mm	$115.56
9909	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	6 in. / 0.5 ft. / 0.153 m	$192.72
7237	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	12 in. / 1 ft. / 0.305 m	$325.45
13092	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	15 in. / 38 cm	$389.01
13093	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	18 in. / 1.50 ft. / 45.7 cm	$453.17
13094	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	21 in. / 1.75 ft. / 53.3 cm	$515.73
7238	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	24 in. / 2 ft. / 0.610 m	$580.64
12218	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	3 ft. / 0.914 m	$836.09
5386	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	4 ft. / 1.22 m	$1,080.19
12220	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	5 ft. / 1.524 m	$1,325.38
12219	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	6 ft. / 1.829 m	$1,570.83
11452	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	7 ft. / 2.134 m	$1,808.57
10215	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	100 in. / 8.33 ft. / 2.54 m	$2,143.28
7461	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	110 in. / 9.17 ft. / 2.79 m	$2,347.82
4334	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	10 ft. / 3.048 m	$2,531.10
12223	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	15 ft. / 4.572 m	$3,796.91
10070	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	17 ft. / 5.18 m	$4,268.76
4488	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	20 ft. / 6.096 m	$5,062.47
12224	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	25 ft. / 7.620 m	$6,277.28
7462	70 % Platinum, 30 % Rhodium	0.020 in. / 0.5 mm / 24 gauge	330 in. / 27.50 ft. / 8.38 m	$6,905.82

Showing 1 - 20 of 22 | Next

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Platinum Rhodium

Buy Platinum Rhodium Wire and Rod from Surepure Chemetals Diameter: 0.020 in. / 0.5 mm / 24 gauge Purity: 70 % Platinum, 30 % Rhodium

Buy Platinum Rhodium Wire and Rod from Surepure Chemetals

Diameter: 0.020 in. / 0.5 mm / 24 gauge

Purity: 70 % Platinum, 30 % Rhodium