All data is for information only------(Home)
	PRODUCT DATA of Erbium

Material

Erbium

Chemical Composition

100Er

CAS Registry ID

7440-52-0

	EXPERIENCE IN PRACTICE

Development Status

Special Commercial Product

Cost Range

High

Equivalent Designations

Er

Space Experience

Limited

	PHYSICAL PROPERTIES

Atomic Number

68

Atomic Weight

167 amu

Specific Gravity

9.07

	ELASTIC PROPERTIES

Tensile Modulus

70 GPa

Shear Modulus

28 GPa

Bulk Modulus

44 GPa

Poisson Ratio

0.24

Speed of Sound (longitudinal)

2830 m/s

	ELECTRICAL PROPERTIES

Electrical Volume Resistivity

8.6e-7 ohm.m

	THERMAL PROPERTIES

Thermal Conductivity

15 W/m.K

Thermal Expansion Coefficient

12.2 μstrain/°C

Melting Range

1800 °C

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

EMF vs SCE

-1.34 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data

	SPECIAL RECOMMENDATIONS

Lessons Learned

During plasma welding high intensities of UV are emitted that can cause sun burns very quickly.