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ASTM Grade HK Steel vs. Z21210 Zinc

ASTM grade HK steel belongs to the iron alloys classification, while Z21210 zinc belongs to the zinc alloys. There are 12 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HK steel and the bottom bar is Z21210 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Tensile Strength: Ultimate (UTS), MPa 500
150 to 170

Thermal Properties

Melting Completion (Liquidus), °C 1400
420
Melting Onset (Solidus), °C 1350
420
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 17
32

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
35

Otherwise Unclassified Properties

Density, g/cm3 7.8
7.1

Common Calculations

Strength to Weight: Axial, points 18
5.7 to 6.4
Strength to Weight: Bending, points 18
8.6 to 9.4
Thermal Diffusivity, mm2/s 3.9
38