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ASTM A356 Grade 6 vs. Zamak 2

ASTM A356 grade 6 belongs to the iron alloys classification, while Zamak 2 belongs to the zinc alloys. There are 30 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 ASTM A356 grade 6 and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 250
130
Maximum Temperature: Mechanical, °C 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 41
110
Thermal Expansion, µm/m-K 13
28

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
12
Density, g/cm3 7.8
6.5
Embodied Carbon, kg CO2/kg material 1.6
3.0
Embodied Energy, MJ/kg 21
57
Embodied Water, L/kg 53
380

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 1.0 to 1.5
0
Copper (Cu), % 0
2.5 to 3.3
Iron (Fe), % 96.2 to 98.1
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.6
0 to 0.030
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
92.2 to 94