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Zinc-Lead Rolled Zinc Alloy (Z20301)

Z20301 zinc is an otherwise-unclassified alloy of zinc. It is typically furnished in the as-fabricated (no temper or treatment) condition. It has a moderately low heat capacity among zinc alloys. In addition, it has a moderately high ductility and a moderately low tensile strength. The graph bars on the material properties cards below compare Z20301 zinc to other zinc alloys (top) and the entire database (bottom).

Mechanical Properties

Elastic (Young's, Tensile) Modulus

87 GPa 13 x 106 psi

Elongation at Break

53 %

Poisson's Ratio


Shear Modulus

35 GPa 5.0 x 106 psi

Tensile Strength: Ultimate (UTS)

160 MPa 23 x 103 psi

Thermal Properties

Melting Completion (Liquidus)

410 °C 770 °F

Melting Onset (Solidus)

400 °C 740 °F

Specific Heat Capacity

390 J/kg-K 0.093 BTU/lb-°F

Thermal Expansion

26 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

11 % relative


6.6 g/cm3 410 lb/ft3

Embodied Carbon

2.8 kg CO2/kg material

Embodied Energy

53 MJ/kg 23 x 103 BTU/lb

Embodied Water

340 L/kg 41 gal/lb

Common Calculations

Stiffness to Weight: Axial

7.4 points

Stiffness to Weight: Bending

23 points

Strength to Weight: Axial

6.7 points

Strength to Weight: Bending

9.9 points

Thermal Shock Resistance

5.0 points

Alloy Composition

Zinc (Zn) 99.853 to 100
Lead (Pb) 0 to 0.1
Titanium (Ti) 0 to 0.020
Iron (Fe) 0 to 0.010
Cadmium (Cd) 0 to 0.010
Copper (Cu) 0 to 0.0050
Aluminum (Al) 0 to 0.0020

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM B69: Standard Specification for Rolled Zinc