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ASTM A148 Cast Steel vs. Zamak 7

ASTM A148 cast steel belongs to the iron alloys classification, while Zamak 7 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A148 cast steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 390
80
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 5.7 to 25
13
Fatigue Strength, MPa 280 to 670
47
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 73
33
Tensile Strength: Ultimate (UTS), MPa 630 to 1300
280
Tensile Strength: Yield (Proof), MPa 390 to 1160
250

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 400 to 430
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 37 to 47
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3 to 7.5
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.6
38

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.3
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
3.0
Embodied Energy, MJ/kg 20 to 22
57
Embodied Water, L/kg 48 to 53
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
36
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 3570
370
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22 to 46
12
Strength to Weight: Bending, points 21 to 34
15
Thermal Diffusivity, mm2/s 9.9 to 13
43
Thermal Shock Resistance, points 18 to 38
8.6