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ASTM A27 Cast Steel vs. Zamak 3

ASTM A27 cast steel belongs to the iron alloys classification, while Zamak 3 belongs to the zinc alloys. There are 29 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A27 cast steel and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 25 to 27
11
Fatigue Strength, MPa 170 to 230
48
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 73
33
Tensile Strength: Ultimate (UTS), MPa 460 to 550
280
Tensile Strength: Yield (Proof), MPa 230 to 310
210

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 400
95
Melting Completion (Liquidus), °C 1460
390
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 52
110
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
38

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 18
57
Embodied Water, L/kg 45 to 46
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
28
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
260
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 16 to 20
12
Strength to Weight: Bending, points 17 to 19
15
Thermal Diffusivity, mm2/s 14
43
Thermal Shock Resistance, points 15 to 18
8.6