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	PRODUCT DATA of Lead

Material

Lead

Chemical Composition

100Pb

CAS Registry ID

7439-92-1

	EXPERIENCE IN PRACTICE

Equivalent Designations

Pb

	PHYSICAL PROPERTIES

Atomic Number

82

Atomic Weight

207 amu

Work Function

4 eV

Crystal Structure

Face centered cubic (fcc)

Specific Gravity

11.4

	ELASTIC PROPERTIES

Tensile Modulus

16.1 GPa

Bulk Modulus

45.8 GPa

Poisson Ratio

0.44

Speed of Sound (longitudinal)

2200 m/s

Speed of Sound (transverse)

700 m/s

Acoustic Impedance

24.6 MRayls

	ELECTRICAL PROPERTIES

Electrical Volume Resistivity

2.06e-7 ohm.m

Superconductivity Critical Temperature

-266 °C

	THERMAL PROPERTIES

Thermal Conductivity

35.3 W/m.K

Thermal Expansion Coefficient

29 μstrain/°C

Specific Heat

0.159 J/g.K

Melting Range

328 °C

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

EMF vs SCE

-0.5 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data

Sublimation

10-4mm/year at 270°C 10-2mm/year at 330°C 1 mm/year at 430°C

	SPECIAL RECOMMENDATIONS

Lessons Learned

Lead is known to produce a continuum of diverse biological effects in humans, depending on the dose, which are usually associated with high and long-term exposure.