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Z21210 Zinc vs. S30815 Stainless Steel

Z21210 zinc belongs to the zinc alloys classification, while S30815 stainless steel belongs to the iron alloys. There are 13 material properties with values for both materials. Properties with values for just one material (22, in this case) are not shown.

For each property being compared, the top bar is Z21210 zinc and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Rockwell B Hardness 45 to 58
82
Tensile Strength: Ultimate (UTS), MPa 150 to 170
680

Thermal Properties

Melting Completion (Liquidus), °C 420
1400
Melting Onset (Solidus), °C 420
1360
Specific Heat Capacity, J/kg-K 400
490
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 32
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 35
2.4

Otherwise Unclassified Properties

Density, g/cm3 7.1
7.7

Common Calculations

Strength to Weight: Axial, points 5.7 to 6.4
25
Strength to Weight: Bending, points 8.6 to 9.4
22
Thermal Diffusivity, mm2/s 38
4.0