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	PRODUCT DATA of Cobald

Material

Cobald

Chemical Composition

100Co

CAS Registry ID

7440-48-4

	EXPERIENCE IN PRACTICE

Equivalent Designations

Co

	PHYSICAL PROPERTIES

Atomic Number

27

Atomic Weight

58.9 amu

Work Function

5 eV

Crystal Structure

Hexagonal close packed (hcp)

Specific Gravity

8.9

	ELASTIC PROPERTIES

Tensile Modulus

209 GPa

Shear Modulus

75 GPa

Bulk Modulus

180 GPa

Poisson Ratio

0.31

Speed of Sound (longitudinal)

4720 m/s

	ELECTRICAL PROPERTIES

Electrical Volume Resistivity

6.34e-8 ohm.m

	THERMAL PROPERTIES

Thermal Conductivity

96 W/m.K

Thermal Expansion Coefficient

12.5 μstrain/°C

Specific Heat

0.427 J/g.K

Melting Range

1490 °C

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

EMF vs SCE

-0.32 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data