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Zamak 2 vs. ASTM A302 Alloy Steel

Zamak 2 belongs to the zinc alloys classification, while ASTM A302 alloy steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is Zamak 2 and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 87
190
Elongation at Break, % 6.0
20 to 23
Fatigue Strength, MPa 59
250 to 280
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 33
73
Shear Strength, MPa 320
370 to 390
Tensile Strength: Ultimate (UTS), MPa 360
590 to 620
Tensile Strength: Yield (Proof), MPa 270
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 130
250
Maximum Temperature: Mechanical, °C 95
410
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
39 to 51
Thermal Expansion, µm/m-K 28
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.2 to 7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 35
8.2 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.4 to 3.0
Density, g/cm3 6.5
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 3.0
1.5 to 1.6
Embodied Energy, MJ/kg 57
20 to 21
Embodied Water, L/kg 380
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 420
330 to 410
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 15
21 to 22
Strength to Weight: Bending, points 17
20 to 21
Thermal Diffusivity, mm2/s 41
10 to 14
Thermal Shock Resistance, points 11
17 to 18