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ASTM A732 Cast Steel vs. Zamak 3

ASTM A732 cast steel belongs to the iron alloys classification, while Zamak 3 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A732 cast steel and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 440
83
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 4.0 to 25
11
Fatigue Strength, MPa 230 to 750
48
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 72 to 73
33
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
280
Tensile Strength: Yield (Proof), MPa 310 to 1340
210

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
120
Maximum Temperature: Mechanical, °C 400 to 430
95
Melting Completion (Liquidus), °C 1440 to 1460
390
Melting Onset (Solidus), °C 1400 to 1420
380
Specific Heat Capacity, J/kg-K 470 to 480
410
Thermal Conductivity, W/m-K 39 to 50
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
38

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
11
Density, g/cm3 7.8 to 7.9
6.4
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
3.0
Embodied Energy, MJ/kg 19 to 24
57
Embodied Water, L/kg 47 to 54
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
28
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
260
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 16 to 52
12
Strength to Weight: Bending, points 17 to 37
15
Thermal Diffusivity, mm2/s 10 to 14
43
Thermal Shock Resistance, points 14 to 43
8.6