PtRh10 soft annealed (+A)

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The material PtRh10 (in the literature also Pt10Rh, Pt90Rh10 or PtRh90/10) is used for highly stressed laboratory equipment, such as crucibles for melt digestion of minerals and ferroalloys as well as for crucibles, casts and stirrers in viscometry also in the fine grain stabilized state. Furthermore, the material is used for thermocouples (pairing PtRh10/Pt up to 1500°C), electrodes, glass fiber nozzles and lining materials for glass melting tanks as well as for catalyst grids. The mechanical, thermal and corrosive resistance increases with increasing rhodium content. An advantage of the platinum-rhodium alloy is that even in an oxidizing atmosphere only a minimum of weight loss occurs. The material is ductile, corrosion-resistant, oxidation-resistant and high temperature resistant. It is machinable, roll-cladable and conditionally deductible from the gas phase.

Related Standards

This material data has been provided by WIAM.

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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20.0 °C

20 g/cm³

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Elastic modulus

20.0 °C

208 GPa

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20.0 °C

32 %

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Hardness, Vickers

20.0 °C

102 [-]

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Poisson's ratio

23.0 °C

0.39 [-]

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Typical for Platinum

Shear modulus

20.0 °C

72 GPa

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Tensile strength

20.0 °C

300 MPa

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Yield strength

20.0 °C

180 MPa

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Yield strength Rp0.2

20.0 °C

180 MPa

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Coefficient of thermal expansion

300.0 °C

1.02E-5 1/K

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700.0 °C

1.07E-5 1/K

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1200.0 °C

1.12E-5 1/K

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Melting point

1769 °C

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Typical for Platinum

Specific heat capacity

23.0 °C

136 J/(kg·K)

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Typical for Platinum

Thermal conductivity

20.0 °C

30 W/(m·K)

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Electrical resistivity

20.0 °C

2E-7 Ω·m

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Chemical properties



90 %

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10 %

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