UNS Z21210 (Zn-0.08Pb) Rolled Zinc
Z21210 zinc is an otherwise-unclassified alloy of zinc. Z21210 is the UNS number for this material. Zn-0.08Pb is the common industry name. It has a fairly high density among the zinc alloys in the database.
The properties of Z21210 zinc include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare Z21210 zinc to other zinc alloys (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Thermal Properties
Melting Completion (Liquidus)
420 °C 790 °F
Melting Onset (Solidus)
420 °C 790 °F
Specific Heat Capacity
400 J/kg-K 0.094 BTU/lb-°F
Thermal Conductivity
110 W/m-K 62 BTU/h-ft-°F
Thermal Expansion
32 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
28 % IACS
Electrical Conductivity: Equal Weight (Specific)
35 % IACS
Other Material Properties
Density
7.1 g/cm3 450 lb/ft3
Rockwell B Hardness
45 to 58
Tensile Strength: Ultimate (UTS)
150 to 170 MPa 21 to 24 x 103 psi
Common Calculations
Strength to Weight: Axial
5.7 to 6.4 points
Strength to Weight: Bending
8.6 to 9.4 points
Thermal Diffusivity
38 mm2/s
Followup Questions
Further Reading
Corrosion and Electrochemistry of Zinc, Xiaoge Gregory Zhang, 1996
Zinc Handbook: Properties, Processing, and Use In Design, Frank C. Porter, 1991
Corrosion Resistance of Zinc and Zinc Alloys, Frank C. Porter, 1994
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993