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Zamak 2 vs. ASTM A387 Grade 2 Steel

Zamak 2 belongs to the zinc alloys classification, while ASTM A387 grade 2 steel belongs to the iron alloys. There are 31 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 Zamak 2 and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 87
190
Elongation at Break, % 6.0
25
Fatigue Strength, MPa 59
190 to 250
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 33
73
Shear Strength, MPa 320
300 to 350
Tensile Strength: Ultimate (UTS), MPa 360
470 to 550
Tensile Strength: Yield (Proof), MPa 270
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 130
250
Maximum Temperature: Mechanical, °C 95
420
Melting Completion (Liquidus), °C 390
1470
Melting Onset (Solidus), °C 380
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
45
Thermal Expansion, µm/m-K 28
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 35
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.6
Density, g/cm3 6.5
7.9
Embodied Carbon, kg CO2/kg material 3.0
1.6
Embodied Energy, MJ/kg 57
20
Embodied Water, L/kg 380
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 420
180 to 320
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 15
16 to 20
Strength to Weight: Bending, points 17
17 to 19
Thermal Diffusivity, mm2/s 41
12
Thermal Shock Resistance, points 11
14 to 16

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.050 to 0.21
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 2.5 to 3.3
0
Iron (Fe), % 0 to 0.1
97.1 to 98.3
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.030
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 92.2 to 94
0