PtIr20 deformed condition

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Description

The platinum-iridium material PtIr20 (in the literature also: Pt20Ir, Pt80Ir20, Pt / Ir80 / 20) is used for switch contacts as well as for laboratory devices or structural components such as eg. B. satellite control nozzles that are mechanically stressed, thermally and corrosively heavily used. The mechanical, thermal and corrosive resistance increases with increasing iridium content. In an oxidizing atmosphere, increased weight loss occurs in platinum-iridium alloys. PtIr20 is used for switches and relays for higher AC loads (currents over 300 mA at voltages above 12 V) with a long service life. Another field of application for this material is the use as a potentiometer alloy.

Related Standards

Degussa

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Temperature	Value
Density	20.0 °C	21.7 g/cm³ Show Material materials with Density of 21.7 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	230 GPa Show Material materials with Elastic modulus of 230 GPa
Elongation	20.0 °C	2 % Show Material materials with Elongation of 2 %
Hardness, Vickers	20.0 °C	300 [-] Show Material materials with Hardness, Vickers of 300 [-]
Poisson's ratio	23.0 °C	0.39 [-] Show Material materials with Poisson's ratio of 0.39 [-]	Typical for Platinum
Shear modulus	23.0 °C	62 GPa Show Material materials with Shear modulus of 62 GPa	Typical for Platinum
Tensile strength	20.0 °C	650 - 940 MPa Show Material materials with Tensile strength of 650 - 940 MPa
Yield strength Rp0.2	20.0 °C	920 MPa Show Material materials with Yield strength Rp0.2 of 920 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	8.3E-6 1/K Show Material materials with Coefficient of thermal expansion of 8.3E-6 1/K
Melting point		1769 °C Show Material materials with Melting point of 1769 °C	Typical for Platinum
Specific heat capacity	23.0 °C	136 J/(kg·K) Show Material materials with Specific heat capacity of 136 J/(kg·K)	Typical for Platinum
Thermal conductivity	23.0 °C	69 - 73 W/(m·K) Show Material materials with Thermal conductivity of 69 - 73 W/(m·K)	Typical for Platinum

Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	3.1E-7 Ω·m Show Material materials with Electrical resistivity of 3.1E-7 Ω·m

Chemical properties

Property	Value
Iridium	20 % Show Material materials with Iridium of 20 %
Platinum	80 % Show Material materials with Platinum of 80 %

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PtIr20 deformed condition

Description

Related Standards

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Properties