Rhodium (Rh) deformed condition

Want to keep this datasheet? Save it now in your required format

Description

The silver-white, hard precious metal material rhodium (Rh) belongs to the light platinum metals (density around 12 g/cm³). Rh is resistant to acids in a compact form such as iridium, but it dissolves finely distributed in aqua regia and concentrated sulfuric acid. It reacts with oxygen at high surface temperature (in contrast, ruthenium and osmium form volatile oxides). The processability depends crucially on the degree of purity. Pure rhodium can be forged in red hot, can be rolled and pulled. The material is characterized by high thermal and electrical conductivity. Application: Rhodium has greater practical importance than the other platinum metals except platinum and palladium. In car exhaust catalysts, mainly Pt / Rh or Pt / Pd are used. Furthermore, rhodium is used in chemical and electrochemical apparatus engineering (crucible for growing single crystals for the optical industry and laser technology), for spinnerets and thermocouples (Pt / Rh). Rhodium layers have the advantage over all other platinum metal coatings of particularly high hardness, mechanical and chemical resistance and high reflectivity (for example, for silvering). Furthermore, Rh is also used as a contact material and for heating coils and mirrors. Rhodium is sufficiently ductile, corrosion resistant, oxidation resistant up to 800°C, abrasion resistant. It is limited machinable, electrodepositable and can be separated from the gas phase.

Related Standards

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.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

12.4 g/cm³

Show Material materials with Density of 12.4 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-190.0 °C

405 GPa

Show Material materials with Elastic modulus of 405 GPa

20.0 °C

380 - 386 GPa

Show Material materials with Elastic modulus of 380 - 386 GPa

200.0 °C

368 GPa

Show Material materials with Elastic modulus of 368 GPa

400.0 °C

346 GPa

Show Material materials with Elastic modulus of 346 GPa

500.0 °C

336 GPa

Show Material materials with Elastic modulus of 336 GPa

600.0 °C

325 GPa

Show Material materials with Elastic modulus of 325 GPa

700.0 °C

315 GPa

Show Material materials with Elastic modulus of 315 GPa

800.0 °C

304 GPa

Show Material materials with Elastic modulus of 304 GPa

900.0 °C

291 GPa

Show Material materials with Elastic modulus of 291 GPa

Hardness, Vickers

20.0 °C

410 [-]

Show Material materials with Hardness, Vickers of 410 [-]

Poisson's ratio

20.0 °C

0.26 [-]

Show Material materials with Poisson's ratio of 0.26 [-]

Shear modulus

20.0 °C

150 - 153 GPa

Show Material materials with Shear modulus of 150 - 153 GPa

Tensile strength

20.0 °C

1925 MPa

Show Material materials with Tensile strength of 1925 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

50.0 °C

8E-6 1/K

Show Material materials with Coefficient of thermal expansion of 8E-6 1/K

100.0 °C

8.5E-6 1/K

Show Material materials with Coefficient of thermal expansion of 8.5E-6 1/K

200.0 °C

9E-6 1/K

Show Material materials with Coefficient of thermal expansion of 9E-6 1/K

300.0 °C

9.3E-6 1/K

Show Material materials with Coefficient of thermal expansion of 9.3E-6 1/K

400.0 °C

9.6E-6 1/K

Show Material materials with Coefficient of thermal expansion of 9.6E-6 1/K

500.0 °C

9.8E-6 1/K

Show Material materials with Coefficient of thermal expansion of 9.8E-6 1/K

600.0 °C

1E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1E-5 1/K

700.0 °C

1.01E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.01E-5 1/K

800.0 °C

1.03E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.03E-5 1/K

900.0 °C

1.05E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.05E-5 1/K

1000.0 °C

1.08E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.08E-5 1/K

1100.0 °C

1.1E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.1E-5 1/K

1200.0 °C

1.13E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.13E-5 1/K

1300.0 °C

1.15E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.15E-5 1/K

1400.0 °C

1.18E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.18E-5 1/K

1500.0 °C

1.21E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.21E-5 1/K

Unlock all property charts

Melting point

1963 °C

Show Material materials with Melting point of 1963 °C

Typical for Rhodium

Specific heat capacity

23.0 °C

254 J/(kg·K)

Show Material materials with Specific heat capacity of 254 J/(kg·K)

Typical for Rhodium

Thermal conductivity

-173.0 °C

185 W/(m·K)

Show Material materials with Thermal conductivity of 185 W/(m·K)

-73.0 °C

156 W/(m·K)

Show Material materials with Thermal conductivity of 156 W/(m·K)

20.0 °C

88 W/(m·K)

Show Material materials with Thermal conductivity of 88 W/(m·K)

127.0 °C

145 W/(m·K)

Show Material materials with Thermal conductivity of 145 W/(m·K)

327.0 °C

135 W/(m·K)

Show Material materials with Thermal conductivity of 135 W/(m·K)

527.0 °C

126 W/(m·K)

Show Material materials with Thermal conductivity of 126 W/(m·K)

727.0 °C

121 W/(m·K)

Show Material materials with Thermal conductivity of 121 W/(m·K)

927.0 °C

118 W/(m·K)

Show Material materials with Thermal conductivity of 118 W/(m·K)

1127.0 °C

115 W/(m·K)

Show Material materials with Thermal conductivity of 115 W/(m·K)

1327.0 °C

109 W/(m·K)

Show Material materials with Thermal conductivity of 109 W/(m·K)

1527.0 °C

106 W/(m·K)

Show Material materials with Thermal conductivity of 106 W/(m·K)

1727.0 °C

104 W/(m·K)

Show Material materials with Thermal conductivity of 104 W/(m·K)

Unlock all property charts

Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

2.33E+7 S/m

Show Material materials with Electrical conductivity of 2.33E+7 S/m

Electrical resistivity

20.0 °C

4.3E-8 Ω·m

Show Material materials with Electrical resistivity of 4.3E-8 Ω·m

Chemical properties

PropertyValue

Rhodium

99.9 %

Show Material materials with Rhodium of 99.9 %