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Zamak 5 vs. ASTM A27 Cast Steel

Zamak 5 belongs to the zinc alloys classification, while ASTM A27 cast steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is Zamak 5 and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
190
Elongation at Break, % 6.3
25 to 27
Fatigue Strength, MPa 56
170 to 230
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
73
Tensile Strength: Ultimate (UTS), MPa 330
460 to 550
Tensile Strength: Yield (Proof), MPa 240
230 to 310

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.0 to 7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 37
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 57
18
Embodied Water, L/kg 380
45 to 46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
96 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 330
140 to 260
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 14
16 to 20
Strength to Weight: Bending, points 16
17 to 19
Thermal Diffusivity, mm2/s 42
14
Thermal Shock Resistance, points 9.9
15 to 18